Weather in Belfast Today
Current temperature in Belfast: 13°C (55°F). Sunny. Today's high 18°C (64°F), low 13°C (55°F).
Today's Daylight Forecast
Moon & Islamic Calendar
Air quality and UV are both favourable great conditions for a walk, run, or outdoor activity.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 16°C.
Air Quality
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Health & Activity Advice
UV index is 3 today — low. Minimal sun protection is needed for most outdoor activity.
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Conditions are comfortable for outdoor activity at most points during the day today.
Nearby Regional Outlook
Belfast Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in Belfast?
The hottest month in Belfast is typically July, with daytime highs averaging around 18.5°C (65°F), based on 10 years of historical weather data. Overnight lows during this period average near 12°C (54°F).
What is the coldest month in Belfast?
The coldest month in Belfast is typically January, with overnight lows averaging around 2.9°C (37°F) and daytime highs near 7.3°C (45°F), based on 10 years of historical weather data.
Does Belfast have a rainy season?
Belfast doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. August is the wettest month on average (about 102 mm), while April is the driest (about 64 mm).
What's the best time of year to visit Belfast?
The best time to visit Belfast is typically May to July, when daytime highs average a comfortable 16.9°C (62°F). Rainfall during this window averages around 83 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.
Is Belfast's air quality safe right now?
As of the latest reading, Belfast's air quality index (AQI) is 21, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.