See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
11°
Mostly Cloudy
Feels Like: 9°
Min: 7°
Max: 11°
The next few hours will be mostly cloudy, with today reaching 11°C and dropping to 9°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:13
Sunrise
18:27
Sunset
Moon
Waxing Gibbous
16:51
Moonrise
05:40
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Belfast.
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Belfast.
View stargazing scoreWeather in Belfast today, September 25, 2026
Rain features in Belfast on September 25, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise.
The day peaks near 11°C and cools toward 7°C. Relative humidity sits between 75% and 84%, reaching its peak around 23:00. Winds stay light, near 4.7 km/h by 15:00, so the day feels still more than breezy.
Through the afternoon wet weather remains a factor, with rain chances near 60% around 16:00. Cloud also stays substantial, close to 84% near 15:00. Expect visibility near 14.0 km, with poorer spells close to 7.1 km. Daylight runs from 06:13 to 18:27, lasting 12 hours 13 minutes of sunlight today.
Taken together, Belfast looks wet enough on September 25, 2026 that flexible outdoor plans work best, with temperatures peaking near 11°C.
Frequently asked questions about weather in Belfast
How warm does it get in Belfast?
The warmest month in Belfast is February, with average high temperatures of 20°C. The average temperature during this period is around 17°C.
How cold does it get in Belfast?
The coldest month in Belfast is July, with average low temperatures of 6°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Belfast?
The wettest month in Belfast is July, with an average of 75mm of precipitation.
What is the driest time of year in Belfast?
The driest month in Belfast is September, with an average of 40mm of precipitation.