Ireland climate guide

Temperature in Ireland (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
8°C maximum daytime temperature in January in Ireland (Dublin)8
8°C maximum daytime temperature in February in Ireland (Dublin)8
10°C maximum daytime temperature in March in Ireland (Dublin)10
12°C maximum daytime temperature in April in Ireland (Dublin)12
15°C maximum daytime temperature in May in Ireland (Dublin)15
18°C maximum daytime temperature in June in Ireland (Dublin)18
19°C maximum daytime temperature in July in Ireland (Dublin)19
19°C maximum daytime temperature in August in Ireland (Dublin)19
17°C maximum daytime temperature in September in Ireland (Dublin)17
14°C maximum daytime temperature in October in Ireland (Dublin)14
10°C maximum daytime temperature in November in Ireland (Dublin)10
9°C maximum daytime temperature in December in Ireland (Dublin)9
Min temperature (night-time)
3°C minimum night-time temperature in January in Ireland (Dublin)3
3°C minimum night-time temperature in February in Ireland (Dublin)3
3°C minimum night-time temperature in March in Ireland (Dublin)3
5°C minimum night-time temperature in April in Ireland (Dublin)5
7°C minimum night-time temperature in May in Ireland (Dublin)7
10°C minimum night-time temperature in June in Ireland (Dublin)10
12°C minimum night-time temperature in July in Ireland (Dublin)12
11°C minimum night-time temperature in August in Ireland (Dublin)11
10°C minimum night-time temperature in September in Ireland (Dublin)10
8°C minimum night-time temperature in October in Ireland (Dublin)8
4°C minimum night-time temperature in November in Ireland (Dublin)4
3°C minimum night-time temperature in December in Ireland (Dublin)3
Sea temperature
9°C sea temperature in January in Ireland (Dublin)9
8°C sea temperature in February in Ireland (Dublin)8
7°C sea temperature in March in Ireland (Dublin)7
8°C sea temperature in April in Ireland (Dublin)8
10°C sea temperature in May in Ireland (Dublin)10
12°C sea temperature in June in Ireland (Dublin)12
14°C sea temperature in July in Ireland (Dublin)14
15°C sea temperature in August in Ireland (Dublin)15
14°C sea temperature in September in Ireland (Dublin)14
13°C sea temperature in October in Ireland (Dublin)13
12°C sea temperature in November in Ireland (Dublin)12
10°C sea temperature in December in Ireland (Dublin)10

Sunshine & Daylight in Ireland

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
8 hours of daylight per day in January in Ireland (Dublin)8
10 hours of daylight per day in February in Ireland (Dublin)10
12 hours of daylight per day in March in Ireland (Dublin)12
14 hours of daylight per day in April in Ireland (Dublin)14
16 hours of daylight per day in May in Ireland (Dublin)16
17 hours of daylight per day in June in Ireland (Dublin)17
16 hours of daylight per day in July in Ireland (Dublin)16
15 hours of daylight per day in August in Ireland (Dublin)15
13 hours of daylight per day in September in Ireland (Dublin)13
11 hours of daylight per day in October in Ireland (Dublin)11
9 hours of daylight per day in November in Ireland (Dublin)9
8 hours of daylight per day in December in Ireland (Dublin)8

Rainfall in Ireland

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
18 days with some rainfall in January in Ireland (Dublin)18
15 days with some rainfall in February in Ireland (Dublin)15
16 days with some rainfall in March in Ireland (Dublin)16
15 days with some rainfall in April in Ireland (Dublin)15
16 days with some rainfall in May in Ireland (Dublin)16
15 days with some rainfall in June in Ireland (Dublin)15
14 days with some rainfall in July in Ireland (Dublin)14
16 days with some rainfall in August in Ireland (Dublin)16
15 days with some rainfall in September in Ireland (Dublin)15
16 days with some rainfall in October in Ireland (Dublin)16
16 days with some rainfall in November in Ireland (Dublin)16
17 days with some rainfall in December in Ireland (Dublin)17
Average monthly rainfall (mm)
62 mm monthly rainfall in January in Ireland (Dublin)62
50 mm monthly rainfall in February in Ireland (Dublin)50
50 mm monthly rainfall in March in Ireland (Dublin)50
47 mm monthly rainfall in April in Ireland (Dublin)47
55 mm monthly rainfall in May in Ireland (Dublin)55
55 mm monthly rainfall in June in Ireland (Dublin)55
51 mm monthly rainfall in July in Ireland (Dublin)51
71 mm monthly rainfall in August in Ireland (Dublin)71
64 mm monthly rainfall in September in Ireland (Dublin)64
67 mm monthly rainfall in October in Ireland (Dublin)67
65 mm monthly rainfall in November in Ireland (Dublin)65
75 mm monthly rainfall in December in Ireland (Dublin)75

More climate for Ireland

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
No UV (maximum) index in January in Ireland (Dublin)0
UV (maximum) index 1 (Low) in February in Ireland (Dublin)1
UV (maximum) index 2 (Low) in March in Ireland (Dublin)2
UV (maximum) index 4 (Moderate) in April in Ireland (Dublin)4
UV (maximum) index 5 (Moderate) in May in Ireland (Dublin)5
UV (maximum) index 6 (High) in June in Ireland (Dublin)6
UV (maximum) index 6 (High) in July in Ireland (Dublin)6
UV (maximum) index 5 (Moderate) in August in Ireland (Dublin)5
UV (maximum) index 4 (Moderate) in September in Ireland (Dublin)4
UV (maximum) index 2 (Low) in October in Ireland (Dublin)2
UV (maximum) index 1 (Low) in November in Ireland (Dublin)1
No UV (maximum) index in December in Ireland (Dublin)0
Heat & Humidity
No heat & humidity in January in Ireland (Dublin)0
No heat & humidity in February in Ireland (Dublin)0
No heat & humidity in March in Ireland (Dublin)0
No heat & humidity in April in Ireland (Dublin)0
No heat & humidity in May in Ireland (Dublin)0
No heat & humidity in June in Ireland (Dublin)0
No heat & humidity in July in Ireland (Dublin)0
No heat & humidity in August in Ireland (Dublin)0
No heat & humidity in September in Ireland (Dublin)0
No heat & humidity in October in Ireland (Dublin)0
No heat & humidity in November in Ireland (Dublin)0
No heat & humidity in December in Ireland (Dublin)0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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The climate guide for Ireland, represented by Dublin, 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.

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Metric (°C / mm)  |  Imperial (°F / inches)

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