Belfast Climate by Month
The temperature in Belfast varies moderately throughout the year.
The temperatures shift from pleasant
to cold.
It also experiences much rainfall throughout the year.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
The climate in Belfast experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a pleasant 19°C in July. In February, the coolest month of the year, temperatures drop to a chilly 9°C. At night, expect cooler temperatures, averaging 4°C during this month.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Belfast has a relatively rainy climate with high precipitation levels, averaging 1042 mm of rainfall annually. Despite minor fluctuations, Belfast enjoys fairly consistent precipitation throughout the year. In October, you can expect around 100 mm of precipitation, while in March, Belfast receives about 73 mm.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Belfast can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 6.1 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.3 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average water temperature
The mean water temperature over the year in Belfast ranges from 7°C in February to 13°C in August.
Water temperature over the year
Average humidity
The relative humidity is high throughout the year in Belfast.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Belfast ranges from 4°C in April to 5°C in January.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Belfast in the United Kingdom
Other facts from our historical weather data:July has an average maximum temperature of 19°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 9°C.
October tops the wettest month list with 100 mm of rainfall.
March is the driest month with 73 mm of precipitation.
May is the sunniest month with an average of 184 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
