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Belfast weather live forecast
Today's maximum temperature in Belfast is expected to be 16°C. Select a day from the live weather forecast for Belfast, Northern Ireland, UK for more weather parameters.
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Wednesday
3rd Sep -
Thursday
4th Sep -
Friday
5th Sep -
Saturday
6th Sep -
Sunday
7th Sep
5-day weather forecast updated at 04:00 on Wednesday 3rd September 2025 GMT
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The 5-day weather forecast for Northern Ireland (Belfast) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.
Belfast weather forecast by day
Below are the detailed weather forecasts for Belfast for the next 5 days.
Belfast weather for Wednesday 3rd September 2025
Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 99% chance of some rain and a gentle breeze of 14 kph from the west.
- °C maximum temperature
- °C minimum temperature
- mostly cloudy with rain
- hour of sunshine
- UV index (Low)
- % chance of some rain
- mm of rainfall expected
- °C wind chill
- kph wind from W
Belfast weather for Thursday 4th September 2025
Expect broken clouds in Belfast, Northern Ireland with a maximum temperature of 17°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- °C wind chill
- kph wind from W
Belfast weather for Friday 5th September 2025
Expect broken clouds in Belfast, Northern Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Low)
- mm of rainfall expected
- no heat & humidity
- kph wind from SW
Belfast weather for Saturday 6th September 2025
Expect broken clouds in Belfast, Northern Ireland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- no heat & humidity
- kph wind from S
Belfast weather for Sunday 7th September 2025
Expect mostly cloudy with rain in Belfast, Northern Ireland with a maximum temperature of 18°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 82% chance of some rain and a moderate breeze of 26 kph from the south-east.
- °C maximum temperature
- °C minimum temperature
- mostly cloudy with rain
- hour of sunshine
- UV index (Low)
- % chance of some rain
- mm of rainfall expected
- °C wind chill
- kph wind from SE
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Metric (°C / mm) | Imperial (°F / inches)
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