Worst air pollution Milford Haven, today and tomorrow
Today (9 August): Air quality in Milford Haven is very poor. AQI and NO2 are very poor; O3 is poor; SO2 is fair; PM2.5 and PM1 are medium; PM10, CO, and HCHO are good. Pollution peaks around 5:00 AM (NO2: 96.1/100).
Tomorrow (10 August 2026): Air quality in Milford Haven is fair. AQI improves to fair; PM2.5 decreases to good; NO2 decreases to fair; O3 decreases to fair; SO2 decreases to good; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 35.8/100). Airmine updates local air quality forecasts four times daily.
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Like much of Pembrokeshire, Milford Haven's air quality is shaped less by industry these days and more by everyday road traffic. Residential heating and light industry add a modest seasonal contribution, though light prevailing breezes keep overall levels moderate. Commuter traffic feeding onto the M4 adds a further, consistent contribution to local readings.
Today - 9 August | Pollution peaks at 05:00
AQI:
Very poor
96.1/100
PM2.5 (fine particles):
Medium
40.4/100
PM10 (coarse particles):
Good
11.9/100
NO2 (nitrogen dioxide):
Very poor
96.1/100
O3 (ozone):
Poor
60.4/100
SO2 (sulfur dioxide):
Fair
38.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.8/100
PM1 (ultrafine particles):
Medium
43.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 21:00
AQI:
Fair
35.8/100
PM2.5 (fine particles):
Good
11.3/100
PM10 (coarse particles):
Good
4.2/100
NO2 (nitrogen dioxide):
Fair
35.8/100
O3 (ozone):
Fair
28.2/100
SO2 (sulfur dioxide):
Good
8.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
8.4/100
Pollen forecast in Milford Haven
View pollen forecastFrequently Asked Questions
Is air quality bad in Milford Haven right now?
On 9 August 2026, overall air quality in Milford Haven is very poor. AQI is the main air quality indicator at 96.1/100. Pollution peaks around 5:00 AM (NO2: 96.1/100).
Will air quality be worse tomorrow in Milford Haven?
On 10 August 2026, air quality conditions in Milford Haven will be better than today, with AQI forecast at fair at 35.8/100. Pollution peaks around 9:00 PM (NO2: 35.8/100).
When is air pollution at its worst in Milford Haven?
Ask a local in Milford Haven and they'll tell you air quality changes noticeably from season to season. Warmer months swap one problem for another — less smoke and heating pollution, but more ozone on the sunniest days. Winter mornings can be the trickiest, with cold, still conditions trapping M4 traffic fumes and smoke from home fires close to the ground. Spring and autumn usually sit somewhere in between, so it's really the extremes of the year worth watching.
Are air quality levels in Milford Haven based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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