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Air quality, pollen & UV in Belfast

Updated 7 Oct, 06:02 GMT

Belfast has good air quality today (European AQI 20), with all monitored pollen types low or absent and the UV index peaking at 1 (low). The day stays rainy: temperatures rise from 8°C at 09:00 to 13°C at 15:00, with light wind from the west (13 km/h) and 83% humidity.

With an air quality index of 20, Belfast today sits below the average for United Kingdom (29). Of the 107 cities we track in United Kingdom, Belfast ranks 22 for the cleanest air. Right now the index is driven mainly by Ozone (41 µg/m³). Pollen counts are low across the board right now.

European AQI
20Good
UV index · max today
1Low
Pollutant breakdownDetails
PM2.5
5.1 µg/m³
PM10
8.3 µg/m³
NO₂
7.4 µg/m³
Ozone
41 µg/m³
Saharan dust
0 µg/m³

Air quality today

Good to do today?

🏃
Running / sport
Fine
🪟
Windows open
Fine
🧒
Kids outside
Fine
🍽️
Outdoor dining
Fine

Best time to be outside

☀️ Cleanest air: 03:00–06:00⚠️ Most polluted: 12:00–15:00

Who should take care today

No group needs special precautions today - conditions are fine for everyone.

How affected are you in Belfast today? Anonymous · shared with other visitors.

Pollen levels right now

PollenLevelCount
AlderNone0 grains/m³
BirchNone0 grains/m³
GrassNone0 grains/m³
MugwortNone0 grains/m³
OliveNone0 grains/m³
RagweedNone0 grains/m³

Sun & UV today

UV index by hour

000011111110006070809101112131415161718

Sun protection

🧴
Sunscreen
Not needed
🕶️
Sunglasses
Not needed
⏱️
Burn time
Low risk
⛱️
Seek shade
Not needed

Next days outlook

DateMax AQIMax UV
7 Oct31 Fair1 Low
8 Oct25 Fair2 Low
9 Oct25 Fair2 Low
What do these values mean?

The European Air Quality Index (EAQI) runs from good to extremely poor based on PM2.5, PM10, NO₂ and ozone. Lower is better.

GoodEAQI 0–20
FairEAQI 20–40
ModerateEAQI 40–60
PoorEAQI 60–80
Very poorEAQI 80–100
Extremely poorEAQI 100+

Pollen is shown in grains per m³ of air and banded from none to very high. Thresholds differ per plant type and are indicative.

The UV index runs from low (0–2) to extreme (11+). From moderate (3+), wear sunscreen and seek shade around midday.

Belfast air quality, pollen & UV - FAQ

Is the air quality in Belfast good right now?
Belfast has good air quality today (European AQI 20), with all monitored pollen types low or absent and the UV index peaking at 1 (low). The day stays rainy: temperatures rise from 8°C at 09:00 to 13°C at 15:00, with light wind from the west (13 km/h) and 83% humidity. Air quality is good. Enjoy your usual outdoor activities.
What is the pollen forecast in Belfast today?
All monitored pollen types are low or absent in Belfast right now.
How often is the Belfast air quality data updated?
Air quality and pollen for Belfast are refreshed every day from the Copernicus CAMS European model via Open-Meteo.
How strong is the UV in Belfast today?
The UV index in Belfast peaks at 1 (low) today. From moderate (3 or higher), use sunscreen and seek shade around midday.
Levels are indicative, based on the Copernicus CAMS European model, and are not a medical diagnosis. If you have asthma or a severe allergy, follow your doctor’s advice.

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