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Belfast Weather September
Belfast is located in oceanic climate that can be described as high humidity and moderate seasonal temperature fluctuations warm summer and soft but windy winter.
To help you choose the best time to travel, you can find climate data below on the weather in Belfast in September.
average daily high | +17.1°C | |
average daily low | +9.6°C | |
sea temperature | +14.6°C | |
daytime | 13.3 h | |
sunny / overcast hours | 3.8 / 9.5 | |
average monthly precipitation | 77 mm | |
Best time with the soft weather for the sightseeing and long walks in Belfast are June, July, August.
Temperature in Belfast
In September the average daily maximum in Belfast is +17.1°C, and the minimum +9.6°C.
The hottest September day on record is +25.6°C, and the coldest -0.5°C.
Best beach resorts in September:
Daylight hours
There are 13.3 hours of daylight in Belfast in September. Out of these, on average 3.8 are sunny, which means it is mostly cloudy.
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Sea temperature
The average monthly temperature in the North Channel on the beaches of Belfast in September is +14.6°C.
The water is cold and only apt for bathing for the most hardy people.
Precipitation
The amount of precipitation in Belfast in September is usually 77 mm, which may cause a change of plans on certain days.