Northern Ireland weather by month

Check out Northern Ireland weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °F
45°F maximum daytime temperature in January in Belfast45
45°F maximum daytime temperature in February in Belfast45
48°F maximum daytime temperature in March in Belfast48
52°F maximum daytime temperature in April in Belfast52
57°F maximum daytime temperature in May in Belfast57
63°F maximum daytime temperature in June in Belfast63
64°F maximum daytime temperature in July in Belfast64
64°F maximum daytime temperature in August in Belfast64
61°F maximum daytime temperature in September in Belfast61
55°F maximum daytime temperature in October in Belfast55
48°F maximum daytime temperature in November in Belfast48
46°F maximum daytime temperature in December in Belfast46
Hours of sunshine (daily)
Days with some rainfall
20 days with some rainfall in January in Belfast20
16 days with some rainfall in February in Belfast16
19 days with some rainfall in March in Belfast19
15 days with some rainfall in April in Belfast15
16 days with some rainfall in May in Belfast16
15 days with some rainfall in June in Belfast15
15 days with some rainfall in July in Belfast15
17 days with some rainfall in August in Belfast17
17 days with some rainfall in September in Belfast17
19 days with some rainfall in October in Belfast19
19 days with some rainfall in November in Belfast19
20 days with some rainfall in December in Belfast20
Sea temperature °F
48°F sea temperature in January in Belfast48
46°F sea temperature in February in Belfast46
45°F sea temperature in March in Belfast45
46°F sea temperature in April in Belfast46
48°F sea temperature in May in Belfast48
52°F sea temperature in June in Belfast52
55°F sea temperature in July in Belfast55
55°F sea temperature in August in Belfast55
57°F sea temperature in September in Belfast57
55°F sea temperature in October in Belfast55
54°F sea temperature in November in Belfast54
50°F sea temperature in December in Belfast50

More about Northern Ireland

Northern Ireland by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Northern Ireland (Belfast) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Northern Ireland destinations

Below are average maximum temperatures at popular countries, regions and places in Northern Ireland for next month - May. Select a destination to see the climate guide for all months of the year.

All Northern Ireland destinations

Metric (°C)  |  Imperial (°F)

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More about the UK

Compare Northern Ireland with the UK

Below the Northern Ireland chart shows average maximum daytime temperature for Nothern Ireland (Belfast) and the UK (London).

Maximum daytime temperature (°F)

Nothern Ireland (Belfast)
UK (London)
45
45
45
45
48
50
52
55
57
63
63
68
64
72
64
72
61
66
55
59
48
50
46
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

Compare more Northern Ireland weather >>

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