The best time to visit Northern Ireland is in June and July and September, when you will have a soft or pleasant temperature and limited till little rainfall. The highest average temperature in in Northern Ireland is 17°C in July and the lowest is 6°C in January.
Northern Ireland has the oceanic climate prevailing. If you want to know what the average temperature is in Northern Ireland or when most precipitation (rain or snow) falls, you can find a quick overview below. This way, you are well prepared. Our average monthly climate data is based on data from the past 30 years.
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The Northern Ireland weather for will be 13° till 19° degrees in the next 14 days with several days chance of light rain showers or even quite a bit of rain. The water temperature is 11°C.
The Northern Ireland weather forecast is based on the weather conditions in the city of Belfast.
Northern Ireland 14 day weather forecast
Weather
Max/min
Precip
Wind
Water
UV
Tuesday 17 may
14°C 10°C
7.1 mm 80%
6 Bft S
11°C
2
Wednesday 18 may
16°C 9°C
6.2 mm 75%
9 Bft S
11°C
5
Thursday 19 may
16°C 8°C
2.1 mm 50%
8 Bft SSW
11°C
5
Friday 20 may
14°C 9°C
7.6 mm 80%
5 Bft SSW
11°C
5
Saturday 21 may
15°C 9°C
0.6 mm 20%
6 Bft WSW
11°C
4
Climate Northern Ireland
Northern Ireland has the oceanic climate prevailing. There is rainfall during all months of the year. The average annual temperature for Northern Ireland is 12° degrees and there is about 553 mm of rain in a year. It is dry for 100 days a year with an average humidity of 88% and an UV-index of 3.
What is the average Northern Ireland weather like in a given month? Let's find out! Click on a month to check all the monthly averages for sunshine, temperature highs and lows, percentage chance of rain per day, snowfall accumulation and number of rainy days.
6°C