What is the current concentration of PM10 in Winchester, Hampshire?

The current PM10 concentration at Winchester, Hampshire is 9.523 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Winchester, Hampshire?

The current sulfur dioxide (SO2) concentration at Winchester, Hampshire is 0.393 ppb.

What is the current concentration of ozone (O3) in Winchester, Hampshire?

The current ozone (O3) concentration at Winchester, Hampshire is 27.143 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Winchester, Hampshire?

The current nitrogen dioxide (NO2) concentration at Winchester, Hampshire is 13.958 ppb.

Winchester, Hampshire live air quality index now

Q: What is the current concentration of PM2.5 in Winchester, Hampshire?

The current PM2.5 concentration at Winchester, Hampshire is 3.714 μg/m3.

Stay updated with real-time air quality in Winchester, Hampshire featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Good

Winchester, Hampshire

Last updated: ... (Local time)

Major air pollutants in Winchester, Hampshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.71 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

9.52 μg/m³

155

255

425

605+

Ozone (O₃)

27.14 ppb

201

201+

Sulfur Dioxide (SO₂)

0.39 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

13.96 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.31 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Winchester, Hampshire

Get Live Pollen Counts

Winchester, Hampshire

Scroll To Air Quality Map

Track live Winchester, Hampshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-26T23:00:00.000Z	24 \| good	4.301 \| good	12.654 \| good	25.924 \| good	0.528 \| good	8.688 \| good	0.297 \| good
2026-09-27T00:00:00.000Z	22 \| good	4.021 \| good	11.864 \| good	21.616 \| good	0.56 \| good	14.717 \| good	0.226 \| good
2026-09-27T01:00:00.000Z	27 \| good	4.785 \| good	9.307 \| good	18.936 \| good	0.491 \| good	19.913 \| good	0.229 \| good
2026-09-27T02:00:00.000Z	27 \| good	5.303 \| good	10.623 \| good	21.576 \| good	0.431 \| good	13.585 \| good	0.212 \| good
2026-09-27T03:00:00.000Z	27 \| good	4.878 \| good	25.499 \| good	19.961 \| good	0.422 \| good	6.016 \| good	0.217 \| good
2026-09-27T04:00:00.000Z	27 \| good	4.629 \| good	10.043 \| good	13.588 \| good	0.423 \| good	6.153 \| good	0.205 \| good
2026-09-27T05:00:00.000Z	33 \| good	5.878 \| good	10.799 \| good	14.886 \| good	0.459 \| good	10.847 \| good	0.032 \| good
2026-09-27T06:00:00.000Z	27 \| good	4.893 \| good	11.783 \| good	16.234 \| good	0.463 \| good	7.604 \| good	0.031 \| good
2026-09-27T07:00:00.000Z	38 \| good	6.573 \| good	14.537 \| good	12.71 \| good	0.461 \| good	6.664 \| good	0.031 \| good
2026-09-27T08:00:00.000Z	33 \| good	5.647 \| good	13.215 \| good	14.033 \| good	0.427 \| good	8.178 \| good	0.033 \| good
2026-09-27T09:00:00.000Z	33 \| good	6.136 \| good	12.605 \| good	18.006 \| good	0.421 \| good	11.898 \| good	0.032 \| good
2026-09-27T10:00:00.000Z	33 \| good	5.827 \| good	15.851 \| good	13.656 \| good	0.414 \| good	8.051 \| good	0.038 \| good
2026-09-27T11:00:00.000Z	33 \| good	5.89 \| good	14.008 \| good	19.453 \| good	0.457 \| good	7.437 \| good	0.031 \| good
2026-09-27T12:00:00.000Z	33 \| good	6.485 \| good	13.686 \| good	19.244 \| good	0.422 \| good	8.263 \| good	0.029 \| good
2026-09-27T13:00:00.000Z	38 \| good	6.885 \| good	15.107 \| good	26.629 \| good	0.42 \| good	8.175 \| good	0.028 \| good
2026-09-27T14:00:00.000Z	38 \| good	6.826 \| good	12.994 \| good	25.639 \| good	0.438 \| good	7.718 \| good	0.028 \| good
2026-09-27T15:00:00.000Z	38 \| good	6.635 \| good	12.678 \| good	26.817 \| good	0.473 \| good	7.605 \| good	0.03 \| good
2026-09-27T16:00:00.000Z	33 \| good	6.136 \| good	13.453 \| good	29.145 \| good	0.418 \| good	9.65 \| good	0.029 \| good
2026-09-27T17:00:00.000Z	38 \| good	7.096 \| good	12.491 \| good	29.806 \| good	0.418 \| good	8.116 \| good	0.029 \| good
2026-09-27T18:00:00.000Z	38 \| good	7.236 \| good	13.44 \| good	35.939 \| good	0.417 \| good	10.55 \| good	0.035 \| good
2026-09-27T19:00:00.000Z	38 \| good	7.138 \| good	13.656 \| good	34.75 \| good	0.456 \| good	9.949 \| good	0.041 \| good
2026-09-27T20:00:00.000Z	38 \| good	7.315 \| good	16.065 \| good	30.942 \| good	0.428 \| good	9.278 \| good	0.046 \| good
2026-09-27T21:00:00.000Z	38 \| good	7.425 \| good	13.997 \| good	33.736 \| good	0.411 \| good	9.696 \| good	0.057 \| good
2026-09-27T22:00:00.000Z	38 \| good	6.877 \| good	13.781 \| good	27.462 \| good	0.408 \| good	12.092 \| good	0.048 \| good
2026-09-27T23:00:00.000Z	38 \| good	6.619 \| good	14.218 \| good	22.919 \| good	0.426 \| good	18.034 \| good	0.052 \| good
2026-09-28T00:00:00.000Z	33 \| good	6.358 \| good	13.382 \| good	28.592 \| good	0.432 \| good	9.985 \| good	0.255 \| good
2026-09-28T01:00:00.000Z	38 \| good	6.668 \| good	12.688 \| good	26.266 \| good	0.428 \| good	4.25 \| good	0.18 \| good
2026-09-28T02:00:00.000Z	33 \| good	5.921 \| good	10.691 \| good	22.43 \| good	0.413 \| good	4.032 \| good	0.226 \| good
2026-09-28T03:00:00.000Z	33 \| good	5.587 \| good	11.744 \| good	21.823 \| good	0.428 \| good	3.62 \| good	0.214 \| good
2026-09-28T04:00:00.000Z	33 \| good	5.687 \| good	11.272 \| good	18.816 \| good	0.43 \| good	5.581 \| good	0.217 \| good
2026-09-28T05:00:00.000Z	27 \| good	4.747 \| good	11.521 \| good	22.473 \| good	0.462 \| good	4.955 \| good	0.196 \| good
2026-09-28T06:00:00.000Z	33 \| good	5.545 \| good	10.875 \| good	20.958 \| good	0.408 \| good	5.731 \| good	0.21 \| good
2026-09-28T07:00:00.000Z	27 \| good	5.414 \| good	12.751 \| good	13.022 \| good	0.431 \| good	13.121 \| good	0.279 \| good
2026-09-28T08:00:00.000Z	27 \| good	4.715 \| good	10.778 \| good	17.632 \| good	0.589 \| good	12.981 \| good	0.264 \| good
2026-09-28T09:00:00.000Z	27 \| good	5.259 \| good	10.664 \| good	12.376 \| good	0.61 \| good	13.332 \| good	0.235 \| good
2026-09-28T10:00:00.000Z	27 \| good	5.406 \| good	9.656 \| good	10.289 \| good	0.408 \| good	12.09 \| good	0.221 \| good
2026-09-28T11:00:00.000Z	27 \| good	4.608 \| good	9.631 \| good	12.529 \| good	0.422 \| good	8.59 \| good	0.212 \| good
2026-09-28T12:00:00.000Z	22 \| good	4.459 \| good	9.913 \| good	13.518 \| good	0.44 \| good	4.583 \| good	0.188 \| good
2026-09-28T13:00:00.000Z	27 \| good	4.617 \| good	9.544 \| good	11.439 \| good	0.425 \| good	3.794 \| good	0.165 \| good
2026-09-28T14:00:00.000Z	27 \| good	4.533 \| good	10.221 \| good	14.973 \| good	0.402 \| good	3.304 \| good	0.162 \| good
2026-09-28T15:00:00.000Z	22 \| good	4.126 \| good	16.121 \| good	17.221 \| good	0.433 \| good	4.334 \| good	0.156 \| good
2026-09-28T16:00:00.000Z	22 \| good	3.913 \| good	8.34 \| good	20.68 \| good	0.395 \| good	7.457 \| good	0.153 \| good
2026-09-28T17:00:00.000Z	23 \| good	3.76 \| good	7.945 \| good	25.244 \| good	0.659 \| good	11.828 \| good	0.169 \| good
2026-09-28T18:00:00.000Z	28 \| good	4 \| good	9.159 \| good	29.771 \| good	0.687 \| good	9.269 \| good	0.216 \| good
2026-09-28T19:00:00.000Z	28 \| good	3.851 \| good	8.296 \| good	30.124 \| good	0.422 \| good	10.775 \| good	0.253 \| good
2026-09-28T20:00:00.000Z	26 \| good	3.868 \| good	10.291 \| good	28.188 \| good	0.432 \| good	8.204 \| good	0.324 \| good
2026-09-28T21:00:00.000Z	25 \| good	3.714 \| good	9.523 \| good	27.143 \| good	0.393 \| good	13.958 \| good	0.312 \| good
2026-09-28T22:00:00.000Z	22 \| good	3.656 \| good	9.035 \| good	21.051 \| good	0.408 \| good	18.643 \| good	0.352 \| good
2026-09-28T22:00:00.000Z	25 \| good	3.714 \| good	9.523 \| good	27.143 \| good	0.393 \| good	13.958 \| good	0.312 \| good
2026-09-28T23:00:00.000Z	44 \| good	7.708 \| good	9.988 \| good	17.414 \| good	0.244 \| good	7.834 \| good	0.148 \| good
2026-09-29T00:00:00.000Z	38 \| good	7.466 \| good	9.166 \| good	18.922 \| good	0.193 \| good	7.557 \| good	0.146 \| good
2026-09-29T01:00:00.000Z	38 \| good	7.342 \| good	9.157 \| good	19.456 \| good	0.166 \| good	5.842 \| good	0.139 \| good
2026-09-29T02:00:00.000Z	38 \| good	7.11 \| good	8.678 \| good	21.021 \| good	0.152 \| good	4.691 \| good	0.134 \| good
2026-09-29T03:00:00.000Z	33 \| good	6.371 \| good	8.28 \| good	23.657 \| good	0.146 \| good	3.791 \| good	0.127 \| good
2026-09-29T04:00:00.000Z	27 \| good	5.491 \| good	7.454 \| good	25.512 \| good	0.17 \| good	3.319 \| good	0.128 \| good
2026-09-29T05:00:00.000Z	27 \| good	5.171 \| good	8.217 \| good	24.604 \| good	0.191 \| good	3.279 \| good	0.13 \| good
2026-09-29T06:00:00.000Z	33 \| good	5.655 \| good	8.078 \| good	22.369 \| good	0.215 \| good	4.633 \| good	0.133 \| good
2026-09-29T07:00:00.000Z	33 \| good	6.462 \| good	8.374 \| good	20.519 \| good	0.23 \| good	6.077 \| good	0.139 \| good
2026-09-29T08:00:00.000Z	33 \| good	6.357 \| good	8.907 \| good	20.91 \| good	0.308 \| good	5.691 \| good	0.143 \| good
2026-09-29T09:00:00.000Z	38 \| good	7.438 \| good	10.652 \| good	22.813 \| good	0.31 \| good	5.26 \| good	0.144 \| good
2026-09-29T10:00:00.000Z	49 \| good	9.376 \| good	12.593 \| good	25.407 \| good	0.278 \| good	4.587 \| good	0.146 \| good
2026-09-29T11:00:00.000Z	52 \| moderate	9.917 \| good	13.788 \| good	29.684 \| good	0.28 \| good	4.241 \| good	0.149 \| good
2026-09-29T12:00:00.000Z	49 \| good	9.381 \| good	13.459 \| good	32.404 \| good	0.268 \| good	3.873 \| good	0.149 \| good
2026-09-29T13:00:00.000Z	38 \| good	7.297 \| good	10.558 \| good	37.786 \| good	0.226 \| good	3.403 \| good	0.147 \| good
2026-09-29T14:00:00.000Z	39 \| good	6.577 \| good	10.371 \| good	41.695 \| good	0.207 \| good	3.014 \| good	0.142 \| good
2026-09-29T15:00:00.000Z	40 \| good	6.612 \| good	10.765 \| good	42.555 \| good	0.18 \| good	2.985 \| good	0.138 \| good
2026-09-29T16:00:00.000Z	38 \| good	6.564 \| good	9.935 \| good	41.227 \| good	0.175 \| good	3.523 \| good	0.138 \| good
2026-09-29T17:00:00.000Z	38 \| good	7.277 \| good	10.528 \| good	39.197 \| good	0.213 \| good	5.119 \| good	0.144 \| good
2026-09-29T18:00:00.000Z	44 \| good	7.77 \| good	13.139 \| good	37.726 \| good	0.267 \| good	5.944 \| good	0.143 \| good
2026-09-29T19:00:00.000Z	44 \| good	8.426 \| good	12.209 \| good	36.661 \| good	0.326 \| good	6.136 \| good	0.141 \| good
2026-09-29T20:00:00.000Z	38 \| good	7.459 \| good	11.029 \| good	36.688 \| good	0.27 \| good	5.461 \| good	0.135 \| good
2026-09-29T21:00:00.000Z	33 \| good	5.938 \| good	10.311 \| good	35.209 \| good	0.298 \| good	5.186 \| good	0.129 \| good
2026-09-29T22:00:00.000Z	31 \| good	5.323 \| good	9.588 \| good	33.206 \| good	0.3 \| good	5.456 \| good	0.128 \| good
2026-09-29T23:00:00.000Z	30 \| good	4.764 \| good	9.8 \| good	32.116 \| good	0.299 \| good	5.562 \| good	0.128 \| good
2026-09-30T00:00:00.000Z	30 \| good	4.777 \| good	10.713 \| good	32.406 \| good	0.273 \| good	4.725 \| good	0.126 \| good
2026-09-30T01:00:00.000Z	31 \| good	4.789 \| good	10.069 \| good	33.172 \| good	0.302 \| good	3.941 \| good	0.124 \| good
2026-09-30T02:00:00.000Z	32 \| good	4.938 \| good	8.879 \| good	34.84 \| good	0.364 \| good	3.481 \| good	0.121 \| good
2026-09-30T03:00:00.000Z	32 \| good	5.216 \| good	10.644 \| good	35.206 \| good	0.434 \| good	3.497 \| good	0.122 \| good
2026-09-30T04:00:00.000Z	31 \| good	5.427 \| good	9.462 \| good	34.485 \| good	0.406 \| good	3.748 \| good	0.12 \| good
2026-09-30T05:00:00.000Z	33 \| good	5.987 \| good	9.467 \| good	32.616 \| good	0.416 \| good	3.879 \| good	0.119 \| good
2026-09-30T06:00:00.000Z	33 \| good	5.658 \| good	8.199 \| good	30.553 \| good	0.444 \| good	4.97 \| good	0.119 \| good
2026-09-30T07:00:00.000Z	27 \| good	5.373 \| good	8.841 \| good	28.517 \| good	0.452 \| good	6.005 \| good	0.12 \| good
2026-09-30T08:00:00.000Z	33 \| good	6.427 \| good	9.686 \| good	28.579 \| good	0.432 \| good	6.038 \| good	0.119 \| good
2026-09-30T09:00:00.000Z	38 \| good	6.642 \| good	10.06 \| good	29.411 \| good	0.345 \| good	4.872 \| good	0.111 \| good
2026-09-30T10:00:00.000Z	33 \| good	6.104 \| good	8.998 \| good	29.739 \| good	0.271 \| good	3.412 \| good	0.108 \| good
2026-09-30T11:00:00.000Z	33 \| good	5.63 \| good	9.13 \| good	31.027 \| good	0.215 \| good	2.254 \| good	0.104 \| good
2026-09-30T12:00:00.000Z	31 \| good	5.296 \| good	10.646 \| good	32.704 \| good	0.167 \| good	1.913 \| good	0.105 \| good
2026-09-30T13:00:00.000Z	31 \| good	4.971 \| good	12.251 \| good	33.088 \| good	0.16 \| good	1.956 \| good	0.109 \| good
2026-09-30T14:00:00.000Z	31 \| good	5.213 \| good	12.909 \| good	32.864 \| good	0.158 \| good	2.299 \| good	0.113 \| good
2026-09-30T15:00:00.000Z	30 \| good	5.281 \| good	13.627 \| good	32.009 \| good	0.17 \| good	2.906 \| good	0.115 \| good
2026-09-30T16:00:00.000Z	30 \| good	5.456 \| good	14.365 \| good	31.927 \| good	0.192 \| good	3.644 \| good	0.12 \| good
2026-09-30T17:00:00.000Z	33 \| good	5.887 \| good	15.712 \| good	30.835 \| good	0.297 \| good	4.607 \| good	0.127 \| good
2026-09-30T18:00:00.000Z	33 \| good	6.4 \| good	15.896 \| good	26.676 \| good	0.361 \| good	7.184 \| good	0.135 \| good
2026-09-30T19:00:00.000Z	38 \| good	6.822 \| good	16.361 \| good	24.949 \| good	0.417 \| good	8.813 \| good	0.138 \| good
2026-09-30T20:00:00.000Z	38 \| good	7.366 \| good	16.492 \| good	24.554 \| good	0.427 \| good	8.692 \| good	0.138 \| good
2026-09-30T21:00:00.000Z	44 \| good	7.53 \| good	16.039 \| good	22.826 \| good	0.399 \| good	8.522 \| good	0.136 \| good
2026-09-30T22:00:00.000Z	38 \| good	6.978 \| good	15.726 \| good	22.135 \| good	0.347 \| good	7.984 \| good	0.134 \| good

Winchester

Get reliable air quality data to drive your business

Winchester, Hampshire air quality map: Track AQI near you

0.31ppm

How accurate is Hampshire, UK air quality data?

Air quality data and pollutant measurements for Hampshire, UK adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Winchester, Hampshire updated?

The air quality for Winchester, Hampshire is updated every hour.

When was the worst air quality at Winchester, Hampshire in the last 24 hrs?

The worst air quality in Winchester, Hampshire in the last 24 hours was observed at 01:00:00 on 2026-09-28.

When was the best air quality at Winchester, Hampshire in the last 24 hrs?

In the last 24 hrs, the best air quality in Winchester, Hampshire was observed at 04:00:00 on 2026-09-28.

What is the current air quality in Winchester, Hampshire?

The current air quality in Winchester, Hampshire is 25, categorized as Good based on real-time data.

What pollutant is the most common in Winchester, Hampshire?

The most common pollutant in Winchester, Hampshire is O3.

What should I do if the air quality in Winchester, Hampshire is poor?

If the air quality in Winchester, Hampshire is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Winchester, Hampshire?

The current PM_2.5 concentration at Winchester, Hampshire is 3.714 μg/m³.

What is the current concentration of PM₁₀ in Winchester, Hampshire?

The current PM₁₀ concentration at Winchester, Hampshire is 9.523 μg/m³.

What is the current concentration of carbon monoxide (CO) in Winchester, Hampshire?

The current carbon monoxide (CO) concentration at Winchester, Hampshire is 0.312 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Winchester, Hampshire?

The current sulfur dioxide (SO₂) concentration at Winchester, Hampshire is 0.393 ppb.

What is the current concentration of ozone (O₃) in Winchester, Hampshire?

The current ozone (O₃) concentration at Winchester, Hampshire is 27.143 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Winchester, Hampshire?

The current nitrogen dioxide (NO₂) concentration at Winchester, Hampshire is 13.958 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-26T23:00:00.000Z	24 \| good	4.301 \| good	12.654 \| good	25.924 \| good	0.528 \| good	8.688 \| good	0.297 \| good
2026-09-27T00:00:00.000Z	22 \| good	4.021 \| good	11.864 \| good	21.616 \| good	0.56 \| good	14.717 \| good	0.226 \| good
2026-09-27T01:00:00.000Z	27 \| good	4.785 \| good	9.307 \| good	18.936 \| good	0.491 \| good	19.913 \| good	0.229 \| good
2026-09-27T02:00:00.000Z	27 \| good	5.303 \| good	10.623 \| good	21.576 \| good	0.431 \| good	13.585 \| good	0.212 \| good
2026-09-27T03:00:00.000Z	27 \| good	4.878 \| good	25.499 \| good	19.961 \| good	0.422 \| good	6.016 \| good	0.217 \| good
2026-09-27T04:00:00.000Z	27 \| good	4.629 \| good	10.043 \| good	13.588 \| good	0.423 \| good	6.153 \| good	0.205 \| good
2026-09-27T05:00:00.000Z	33 \| good	5.878 \| good	10.799 \| good	14.886 \| good	0.459 \| good	10.847 \| good	0.032 \| good
2026-09-27T06:00:00.000Z	27 \| good	4.893 \| good	11.783 \| good	16.234 \| good	0.463 \| good	7.604 \| good	0.031 \| good
2026-09-27T07:00:00.000Z	38 \| good	6.573 \| good	14.537 \| good	12.71 \| good	0.461 \| good	6.664 \| good	0.031 \| good
2026-09-27T08:00:00.000Z	33 \| good	5.647 \| good	13.215 \| good	14.033 \| good	0.427 \| good	8.178 \| good	0.033 \| good
2026-09-27T09:00:00.000Z	33 \| good	6.136 \| good	12.605 \| good	18.006 \| good	0.421 \| good	11.898 \| good	0.032 \| good
2026-09-27T10:00:00.000Z	33 \| good	5.827 \| good	15.851 \| good	13.656 \| good	0.414 \| good	8.051 \| good	0.038 \| good
2026-09-27T11:00:00.000Z	33 \| good	5.89 \| good	14.008 \| good	19.453 \| good	0.457 \| good	7.437 \| good	0.031 \| good
2026-09-27T12:00:00.000Z	33 \| good	6.485 \| good	13.686 \| good	19.244 \| good	0.422 \| good	8.263 \| good	0.029 \| good
2026-09-27T13:00:00.000Z	38 \| good	6.885 \| good	15.107 \| good	26.629 \| good	0.42 \| good	8.175 \| good	0.028 \| good
2026-09-27T14:00:00.000Z	38 \| good	6.826 \| good	12.994 \| good	25.639 \| good	0.438 \| good	7.718 \| good	0.028 \| good
2026-09-27T15:00:00.000Z	38 \| good	6.635 \| good	12.678 \| good	26.817 \| good	0.473 \| good	7.605 \| good	0.03 \| good
2026-09-27T16:00:00.000Z	33 \| good	6.136 \| good	13.453 \| good	29.145 \| good	0.418 \| good	9.65 \| good	0.029 \| good
2026-09-27T17:00:00.000Z	38 \| good	7.096 \| good	12.491 \| good	29.806 \| good	0.418 \| good	8.116 \| good	0.029 \| good
2026-09-27T18:00:00.000Z	38 \| good	7.236 \| good	13.44 \| good	35.939 \| good	0.417 \| good	10.55 \| good	0.035 \| good
2026-09-27T19:00:00.000Z	38 \| good	7.138 \| good	13.656 \| good	34.75 \| good	0.456 \| good	9.949 \| good	0.041 \| good
2026-09-27T20:00:00.000Z	38 \| good	7.315 \| good	16.065 \| good	30.942 \| good	0.428 \| good	9.278 \| good	0.046 \| good
2026-09-27T21:00:00.000Z	38 \| good	7.425 \| good	13.997 \| good	33.736 \| good	0.411 \| good	9.696 \| good	0.057 \| good
2026-09-27T22:00:00.000Z	38 \| good	6.877 \| good	13.781 \| good	27.462 \| good	0.408 \| good	12.092 \| good	0.048 \| good
2026-09-27T23:00:00.000Z	38 \| good	6.619 \| good	14.218 \| good	22.919 \| good	0.426 \| good	18.034 \| good	0.052 \| good
2026-09-28T00:00:00.000Z	33 \| good	6.358 \| good	13.382 \| good	28.592 \| good	0.432 \| good	9.985 \| good	0.255 \| good
2026-09-28T01:00:00.000Z	38 \| good	6.668 \| good	12.688 \| good	26.266 \| good	0.428 \| good	4.25 \| good	0.18 \| good
2026-09-28T02:00:00.000Z	33 \| good	5.921 \| good	10.691 \| good	22.43 \| good	0.413 \| good	4.032 \| good	0.226 \| good
2026-09-28T03:00:00.000Z	33 \| good	5.587 \| good	11.744 \| good	21.823 \| good	0.428 \| good	3.62 \| good	0.214 \| good
2026-09-28T04:00:00.000Z	33 \| good	5.687 \| good	11.272 \| good	18.816 \| good	0.43 \| good	5.581 \| good	0.217 \| good
2026-09-28T05:00:00.000Z	27 \| good	4.747 \| good	11.521 \| good	22.473 \| good	0.462 \| good	4.955 \| good	0.196 \| good
2026-09-28T06:00:00.000Z	33 \| good	5.545 \| good	10.875 \| good	20.958 \| good	0.408 \| good	5.731 \| good	0.21 \| good
2026-09-28T07:00:00.000Z	27 \| good	5.414 \| good	12.751 \| good	13.022 \| good	0.431 \| good	13.121 \| good	0.279 \| good
2026-09-28T08:00:00.000Z	27 \| good	4.715 \| good	10.778 \| good	17.632 \| good	0.589 \| good	12.981 \| good	0.264 \| good
2026-09-28T09:00:00.000Z	27 \| good	5.259 \| good	10.664 \| good	12.376 \| good	0.61 \| good	13.332 \| good	0.235 \| good
2026-09-28T10:00:00.000Z	27 \| good	5.406 \| good	9.656 \| good	10.289 \| good	0.408 \| good	12.09 \| good	0.221 \| good
2026-09-28T11:00:00.000Z	27 \| good	4.608 \| good	9.631 \| good	12.529 \| good	0.422 \| good	8.59 \| good	0.212 \| good
2026-09-28T12:00:00.000Z	22 \| good	4.459 \| good	9.913 \| good	13.518 \| good	0.44 \| good	4.583 \| good	0.188 \| good
2026-09-28T13:00:00.000Z	27 \| good	4.617 \| good	9.544 \| good	11.439 \| good	0.425 \| good	3.794 \| good	0.165 \| good
2026-09-28T14:00:00.000Z	27 \| good	4.533 \| good	10.221 \| good	14.973 \| good	0.402 \| good	3.304 \| good	0.162 \| good
2026-09-28T15:00:00.000Z	22 \| good	4.126 \| good	16.121 \| good	17.221 \| good	0.433 \| good	4.334 \| good	0.156 \| good
2026-09-28T16:00:00.000Z	22 \| good	3.913 \| good	8.34 \| good	20.68 \| good	0.395 \| good	7.457 \| good	0.153 \| good
2026-09-28T17:00:00.000Z	23 \| good	3.76 \| good	7.945 \| good	25.244 \| good	0.659 \| good	11.828 \| good	0.169 \| good
2026-09-28T18:00:00.000Z	28 \| good	4 \| good	9.159 \| good	29.771 \| good	0.687 \| good	9.269 \| good	0.216 \| good
2026-09-28T19:00:00.000Z	28 \| good	3.851 \| good	8.296 \| good	30.124 \| good	0.422 \| good	10.775 \| good	0.253 \| good
2026-09-28T20:00:00.000Z	26 \| good	3.868 \| good	10.291 \| good	28.188 \| good	0.432 \| good	8.204 \| good	0.324 \| good
2026-09-28T21:00:00.000Z	25 \| good	3.714 \| good	9.523 \| good	27.143 \| good	0.393 \| good	13.958 \| good	0.312 \| good
2026-09-28T22:00:00.000Z	22 \| good	3.656 \| good	9.035 \| good	21.051 \| good	0.408 \| good	18.643 \| good	0.352 \| good
2026-09-28T22:00:00.000Z	25 \| good	3.714 \| good	9.523 \| good	27.143 \| good	0.393 \| good	13.958 \| good	0.312 \| good
2026-09-28T23:00:00.000Z	44 \| good	7.708 \| good	9.988 \| good	17.414 \| good	0.244 \| good	7.834 \| good	0.148 \| good
2026-09-29T00:00:00.000Z	38 \| good	7.466 \| good	9.166 \| good	18.922 \| good	0.193 \| good	7.557 \| good	0.146 \| good
2026-09-29T01:00:00.000Z	38 \| good	7.342 \| good	9.157 \| good	19.456 \| good	0.166 \| good	5.842 \| good	0.139 \| good
2026-09-29T02:00:00.000Z	38 \| good	7.11 \| good	8.678 \| good	21.021 \| good	0.152 \| good	4.691 \| good	0.134 \| good
2026-09-29T03:00:00.000Z	33 \| good	6.371 \| good	8.28 \| good	23.657 \| good	0.146 \| good	3.791 \| good	0.127 \| good
2026-09-29T04:00:00.000Z	27 \| good	5.491 \| good	7.454 \| good	25.512 \| good	0.17 \| good	3.319 \| good	0.128 \| good
2026-09-29T05:00:00.000Z	27 \| good	5.171 \| good	8.217 \| good	24.604 \| good	0.191 \| good	3.279 \| good	0.13 \| good
2026-09-29T06:00:00.000Z	33 \| good	5.655 \| good	8.078 \| good	22.369 \| good	0.215 \| good	4.633 \| good	0.133 \| good
2026-09-29T07:00:00.000Z	33 \| good	6.462 \| good	8.374 \| good	20.519 \| good	0.23 \| good	6.077 \| good	0.139 \| good
2026-09-29T08:00:00.000Z	33 \| good	6.357 \| good	8.907 \| good	20.91 \| good	0.308 \| good	5.691 \| good	0.143 \| good
2026-09-29T09:00:00.000Z	38 \| good	7.438 \| good	10.652 \| good	22.813 \| good	0.31 \| good	5.26 \| good	0.144 \| good
2026-09-29T10:00:00.000Z	49 \| good	9.376 \| good	12.593 \| good	25.407 \| good	0.278 \| good	4.587 \| good	0.146 \| good
2026-09-29T11:00:00.000Z	52 \| moderate	9.917 \| good	13.788 \| good	29.684 \| good	0.28 \| good	4.241 \| good	0.149 \| good
2026-09-29T12:00:00.000Z	49 \| good	9.381 \| good	13.459 \| good	32.404 \| good	0.268 \| good	3.873 \| good	0.149 \| good
2026-09-29T13:00:00.000Z	38 \| good	7.297 \| good	10.558 \| good	37.786 \| good	0.226 \| good	3.403 \| good	0.147 \| good
2026-09-29T14:00:00.000Z	39 \| good	6.577 \| good	10.371 \| good	41.695 \| good	0.207 \| good	3.014 \| good	0.142 \| good
2026-09-29T15:00:00.000Z	40 \| good	6.612 \| good	10.765 \| good	42.555 \| good	0.18 \| good	2.985 \| good	0.138 \| good
2026-09-29T16:00:00.000Z	38 \| good	6.564 \| good	9.935 \| good	41.227 \| good	0.175 \| good	3.523 \| good	0.138 \| good
2026-09-29T17:00:00.000Z	38 \| good	7.277 \| good	10.528 \| good	39.197 \| good	0.213 \| good	5.119 \| good	0.144 \| good
2026-09-29T18:00:00.000Z	44 \| good	7.77 \| good	13.139 \| good	37.726 \| good	0.267 \| good	5.944 \| good	0.143 \| good
2026-09-29T19:00:00.000Z	44 \| good	8.426 \| good	12.209 \| good	36.661 \| good	0.326 \| good	6.136 \| good	0.141 \| good
2026-09-29T20:00:00.000Z	38 \| good	7.459 \| good	11.029 \| good	36.688 \| good	0.27 \| good	5.461 \| good	0.135 \| good
2026-09-29T21:00:00.000Z	33 \| good	5.938 \| good	10.311 \| good	35.209 \| good	0.298 \| good	5.186 \| good	0.129 \| good
2026-09-29T22:00:00.000Z	31 \| good	5.323 \| good	9.588 \| good	33.206 \| good	0.3 \| good	5.456 \| good	0.128 \| good
2026-09-29T23:00:00.000Z	30 \| good	4.764 \| good	9.8 \| good	32.116 \| good	0.299 \| good	5.562 \| good	0.128 \| good
2026-09-30T00:00:00.000Z	30 \| good	4.777 \| good	10.713 \| good	32.406 \| good	0.273 \| good	4.725 \| good	0.126 \| good
2026-09-30T01:00:00.000Z	31 \| good	4.789 \| good	10.069 \| good	33.172 \| good	0.302 \| good	3.941 \| good	0.124 \| good
2026-09-30T02:00:00.000Z	32 \| good	4.938 \| good	8.879 \| good	34.84 \| good	0.364 \| good	3.481 \| good	0.121 \| good
2026-09-30T03:00:00.000Z	32 \| good	5.216 \| good	10.644 \| good	35.206 \| good	0.434 \| good	3.497 \| good	0.122 \| good
2026-09-30T04:00:00.000Z	31 \| good	5.427 \| good	9.462 \| good	34.485 \| good	0.406 \| good	3.748 \| good	0.12 \| good
2026-09-30T05:00:00.000Z	33 \| good	5.987 \| good	9.467 \| good	32.616 \| good	0.416 \| good	3.879 \| good	0.119 \| good
2026-09-30T06:00:00.000Z	33 \| good	5.658 \| good	8.199 \| good	30.553 \| good	0.444 \| good	4.97 \| good	0.119 \| good
2026-09-30T07:00:00.000Z	27 \| good	5.373 \| good	8.841 \| good	28.517 \| good	0.452 \| good	6.005 \| good	0.12 \| good
2026-09-30T08:00:00.000Z	33 \| good	6.427 \| good	9.686 \| good	28.579 \| good	0.432 \| good	6.038 \| good	0.119 \| good
2026-09-30T09:00:00.000Z	38 \| good	6.642 \| good	10.06 \| good	29.411 \| good	0.345 \| good	4.872 \| good	0.111 \| good
2026-09-30T10:00:00.000Z	33 \| good	6.104 \| good	8.998 \| good	29.739 \| good	0.271 \| good	3.412 \| good	0.108 \| good
2026-09-30T11:00:00.000Z	33 \| good	5.63 \| good	9.13 \| good	31.027 \| good	0.215 \| good	2.254 \| good	0.104 \| good
2026-09-30T12:00:00.000Z	31 \| good	5.296 \| good	10.646 \| good	32.704 \| good	0.167 \| good	1.913 \| good	0.105 \| good
2026-09-30T13:00:00.000Z	31 \| good	4.971 \| good	12.251 \| good	33.088 \| good	0.16 \| good	1.956 \| good	0.109 \| good
2026-09-30T14:00:00.000Z	31 \| good	5.213 \| good	12.909 \| good	32.864 \| good	0.158 \| good	2.299 \| good	0.113 \| good
2026-09-30T15:00:00.000Z	30 \| good	5.281 \| good	13.627 \| good	32.009 \| good	0.17 \| good	2.906 \| good	0.115 \| good
2026-09-30T16:00:00.000Z	30 \| good	5.456 \| good	14.365 \| good	31.927 \| good	0.192 \| good	3.644 \| good	0.12 \| good
2026-09-30T17:00:00.000Z	33 \| good	5.887 \| good	15.712 \| good	30.835 \| good	0.297 \| good	4.607 \| good	0.127 \| good
2026-09-30T18:00:00.000Z	33 \| good	6.4 \| good	15.896 \| good	26.676 \| good	0.361 \| good	7.184 \| good	0.135 \| good
2026-09-30T19:00:00.000Z	38 \| good	6.822 \| good	16.361 \| good	24.949 \| good	0.417 \| good	8.813 \| good	0.138 \| good
2026-09-30T20:00:00.000Z	38 \| good	7.366 \| good	16.492 \| good	24.554 \| good	0.427 \| good	8.692 \| good	0.138 \| good
2026-09-30T21:00:00.000Z	44 \| good	7.53 \| good	16.039 \| good	22.826 \| good	0.399 \| good	8.522 \| good	0.136 \| good
2026-09-30T22:00:00.000Z	38 \| good	6.978 \| good	15.726 \| good	22.135 \| good	0.347 \| good	7.984 \| good	0.134 \| good

Winchester, Hampshire live air quality index now

Major air pollutants in Winchester, Hampshire

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Winchester, Hampshire air quality forecast and history

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Winchester, Hampshire air quality map: Track AQI near you

Air quality in nearby cities

Chandler's Ford, Hampshire

Eastleigh, Hampshire

West End, Hampshire

Romsey, Hampshire

Hedge End, Hampshire

Totton, Hampshire

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Air quality levels in UK

Frequently asked questions

How often is the air quality data for Winchester, Hampshire updated?

When was the worst air quality at Winchester, Hampshire in the last 24 hrs?

When was the best air quality at Winchester, Hampshire in the last 24 hrs?

What is the current air quality in Winchester, Hampshire?

What pollutant is the most common in Winchester, Hampshire?

What should I do if the air quality in Winchester, Hampshire is poor?

What is the current concentration of PM2.5 in Winchester, Hampshire?

What is the current concentration of PM10 in Winchester, Hampshire?

What is the current concentration of carbon monoxide (CO) in Winchester, Hampshire?

What is the current concentration of sulfur dioxide (SO2) in Winchester, Hampshire?

What is the current concentration of ozone (O3) in Winchester, Hampshire?

What is the current concentration of nitrogen dioxide (NO2) in Winchester, Hampshire?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Winchester, Hampshire?

What is the current concentration of PM₁₀ in Winchester, Hampshire?

What is the current concentration of sulfur dioxide (SO₂) in Winchester, Hampshire?

What is the current concentration of ozone (O₃) in Winchester, Hampshire?

What is the current concentration of nitrogen dioxide (NO₂) in Winchester, Hampshire?