Ireland weather by month

Check out 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 °C
8°C maximum daytime temperature in January in Dublin8
8°C maximum daytime temperature in February in Dublin8
10°C maximum daytime temperature in March in Dublin10
12°C maximum daytime temperature in April in Dublin12
15°C maximum daytime temperature in May in Dublin15
18°C maximum daytime temperature in June in Dublin18
19°C maximum daytime temperature in July in Dublin19
19°C maximum daytime temperature in August in Dublin19
17°C maximum daytime temperature in September in Dublin17
14°C maximum daytime temperature in October in Dublin14
10°C maximum daytime temperature in November in Dublin10
9°C maximum daytime temperature in December in Dublin9
Hours of sunshine (daily)
Days with some rainfall
18 days with some rainfall in January in Dublin18
15 days with some rainfall in February in Dublin15
16 days with some rainfall in March in Dublin16
15 days with some rainfall in April in Dublin15
16 days with some rainfall in May in Dublin16
15 days with some rainfall in June in Dublin15
14 days with some rainfall in July in Dublin14
16 days with some rainfall in August in Dublin16
15 days with some rainfall in September in Dublin15
16 days with some rainfall in October in Dublin16
16 days with some rainfall in November in Dublin16
17 days with some rainfall in December in Dublin17
Sea temperature °C
9°C sea temperature in January in Dublin9
8°C sea temperature in February in Dublin8
7°C sea temperature in March in Dublin7
8°C sea temperature in April in Dublin8
10°C sea temperature in May in Dublin10
12°C sea temperature in June in Dublin12
14°C sea temperature in July in Dublin14
15°C sea temperature in August in Dublin15
14°C sea temperature in September in Dublin14
13°C sea temperature in October in Dublin13
12°C sea temperature in November in Dublin12
10°C sea temperature in December in Dublin10

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Ireland by month

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

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The climate guide for Ireland (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.

Ireland climate overview

The women of Ireland are famed for their dewy complexions, thanks largely to the soft rain which falls on their country all year round.

Pretty, colourful Cobh close to Cork
Pretty, colourful Cobh close to Cork © Riekelt - Adobe Stock Image

If you hate getting wet, head for Dublin or Cork in the east and south where the climate is somewhat drier, or time your Irish trip for May when the weather is warmest and sunniest.

The west coast is stunningly beautiful but you will spend some of your time peering at the magnificent coastline through a fog of cloud and mist.

Ireland's inimitable Cliffs of Moher, County Clare
Ireland's inimitable Cliffs of Moher, County Clare © Patryk Kosmider - Adobe Stock Image

In winter, the west falls prey to some ferocious storms while the whole of Ireland, in common with the UK mainland, can occasionally be afflicted by cold spells when northerly and easterly winds bring snow and frost.

What to pack for Ireland

Light clothes supplemented with warmer jackets are fine during the summer; wrap up more warmly in the winter months. Always take an umbrella - but think how good all that drizzle is for the skin!

Top Ireland destinations

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

All Ireland destinations

Ireland weather averages

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
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
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

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

Sunshine & UV index 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
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

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

Tropical storm risk: Ireland hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
0
0
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Compare Ireland weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Ireland (Dublin) and the UK (London).

Maximum daytime temperature (°C)

Ireland (Dublin)
UK (London)
8
7
8
7
10
10
12
13
15
17
18
20
19
22
19
22
17
19
14
15
10
10
9
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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