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When to go · Climate guide
Irelandwhen to go
Ireland's national averages run from 8 °C in January to 18 °C in July, with rainfall between 70 mm in May and 116 mm in October and 1.6–6.6 hours of sun a day. Against the default preferences (under 2.7 mm of rain a day, at least 6 hours of sun), the strongest months are April, May and June. Its 34 regions span 12–13 °C in annual mean temperature, so the national figure hides a good deal.
- Capital
- Dublin
- Region
- Europe
- TZ
- Europe/Dublin
- Area
- 68,983 km²
Best months to visit
When Ireland shines
Climate at a glance · 10-year ERA5
A decade of weather, in one page
— daytime high— overnight low▬ typical range
View data table
| Month | Average daytime high (°C) | Average overnight low (°C) | Typical low | Typical high |
|---|---|---|---|---|
| January | 7.9 | 3.5 | -1.5 | 11.9 |
| February | 8.7 | 4.0 | -0.2 | 12.2 |
| March | 9.9 | 4.1 | -0.0 | 14.0 |
| April | 12.1 | 5.4 | 0.9 | 16.6 |
| May | 15.3 | 8.1 | 4.0 | 20.5 |
| June | 17.2 | 10.7 | 7.1 | 22.0 |
| July | 18.3 | 12.3 | 9.5 | 23.6 |
| August | 18.1 | 12.2 | 9.1 | 21.8 |
| September | 16.2 | 10.3 | 6.2 | 20.4 |
| October | 13.3 | 8.4 | 3.6 | 16.6 |
| November | 10.1 | 5.6 | 0.4 | 14.1 |
| December | 8.7 | 4.7 | -0.2 | 12.4 |
View data table
| Month | Rainfall (mm) |
|---|---|
| January | 91 |
| February | 102 |
| March | 95 |
| April | 75 |
| May | 70 |
| June | 84 |
| July | 86 |
| August | 103 |
| September | 100 |
| October | 116 |
| November | 100 |
| December | 108 |
View data table
| Month | Sunshine hours (hr / day) |
|---|---|
| January | 2.2 |
| February | 3.1 |
| March | 4.3 |
| April | 5.7 |
| May | 6.6 |
| June | 5.6 |
| July | 4.8 |
| August | 4.5 |
| September | 4.0 |
| October | 3.1 |
| November | 2.3 |
| December | 1.6 |
— average▬ typical range
View data table
| Month | Average wind speed (km/h) | Typical low | Typical high |
|---|---|---|---|
| January | 16.6 | 7.2 | 28.2 |
| February | 19.5 | 9.9 | 31.1 |
| March | 16.2 | 7.6 | 26.3 |
| April | 14.3 | 6.7 | 25.5 |
| May | 13.2 | 6.5 | 23.3 |
| June | 13.9 | 7.1 | 23.0 |
| July | 13.2 | 7.2 | 21.0 |
| August | 14.4 | 6.4 | 22.8 |
| September | 14.7 | 7.1 | 23.9 |
| October | 16.2 | 7.3 | 25.5 |
| November | 16.0 | 7.6 | 26.4 |
| December | 17.4 | 8.2 | 28.6 |
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Snow depth
Snow depth for Ireland is part of the Premium map and its district-level detail. See what Premium includes.
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Sea surface temperature
Sea surface temperature for Ireland is part of the Premium map and its district-level detail. See what Premium includes.
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Heat index
Heat index for Ireland is part of the Premium map and its district-level detail. See what Premium includes.
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Humidity
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What’s open · year round
Things to do in Ireland
Ireland closes something in November–March; nothing below runs the whole year.
- ClosedLanding on Skellig Michael
Closed November–March · limited April, October · at its best May–July
Sources: skelligmichael.ie, skelligislands.com
- At its best
Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.
34 regions
Ireland, taken apart
- Carlow8–19 °C yr
- Cavan7–18 °C yr
- Clare8–18 °C yr
- Cork8–18 °C yr
- Cork8–19 °C yr
- Donegal8–17 °C yr
- Dublin8–19 °C yr
- Dún Laoghaire–Rathdown8–18 °C yr
- Fingal8–19 °C yr
- Galway8–18 °C yr
- Galway8–19 °C yr
- Kerry8–18 °C yr
- Kildare8–19 °C yr
- Kilkenny8–19 °C yr
- Laois8–19 °C yr
- Leitrim7–18 °C yr
- Limerick8–19 °C yr
- Limerick8–19 °C yr
- Longford8–19 °C yr
- Louth8–19 °C yr
- Mayo8–17 °C yr
- Meath8–19 °C yr
- Monaghan7–19 °C yr
- Offaly8–19 °C yr
- Roscommon8–19 °C yr
- Sligo8–18 °C yr
- South Dublin7–19 °C yr
- Tipperary8–19 °C yr
- Tipperary8–19 °C yr
- Waterford8–19 °C yr
- Waterford8–18 °C yr
- Westmeath8–19 °C yr
- Wexford8–18 °C yr
- Wicklow7–19 °C yr
Safety · 6 governments
What the governments say about Ireland
Combined advisory · most-cautious-wins
Exercise normal precautions
Highest level across 6 governments · Advisory last changed
See breakdown by countryHide breakdown
CA
Level 1Exercise normal precautions
Exercise normal precautions
DE
Level 1Exercise normal precautions
Exercise normal precautions
NL
Level 1Exercise normal precautions
Exercise normal precautions
UK
Level 1Exercise normal precautions
Exercise normal precautions
US
Level 1Exercise normal precautions
Exercise normal precautions
Month by month
A year in Ireland, in order
- JanJanuary7.9°C · 91 mm · 2.2 hr/day
Around 8 °C with 91 mm of rain and 2.2 hours of sun a day.
Around 8 °C with 91 mm of rain and 2.2 hours of sun a day.
- FebFebruary8.7°C · 102 mm · 3.1 hr/day
Around 9 °C with 102 mm of rain and 3.1 hours of sun a day.
Around 9 °C with 102 mm of rain and 3.1 hours of sun a day.
- MarMarch9.9°C · 95 mm · 4.3 hr/day
Around 10 °C with 95 mm of rain and 4.3 hours of sun a day.
Around 10 °C with 95 mm of rain and 4.3 hours of sun a day.
- AprApril12.1°C · 75 mm · 5.7 hr/day
Around 12 °C with 75 mm of rain and 5.7 hours of sun a day.
Around 12 °C with 75 mm of rain and 5.7 hours of sun a day.
- MayMay15.3°C · 70 mm · 6.6 hr/day
Around 15 °C with 70 mm of rain and 6.6 hours of sun a day.
Around 15 °C with 70 mm of rain and 6.6 hours of sun a day.
- JunJune17.2°C · 84 mm · 5.6 hr/day
Around 17 °C with 84 mm of rain and 5.6 hours of sun a day.
Around 17 °C with 84 mm of rain and 5.6 hours of sun a day.
- JulJuly18.3°C · 86 mm · 4.8 hr/day
Around 18 °C with 86 mm of rain and 4.8 hours of sun a day.
Around 18 °C with 86 mm of rain and 4.8 hours of sun a day.
- AugAugust18.1°C · 103 mm · 4.5 hr/day
Around 18 °C with 103 mm of rain and 4.5 hours of sun a day.
Around 18 °C with 103 mm of rain and 4.5 hours of sun a day.
- SepSeptember16.2°C · 100 mm · 4.0 hr/day
Around 16 °C with 100 mm of rain and 4.0 hours of sun a day.
Around 16 °C with 100 mm of rain and 4.0 hours of sun a day.
- OctOctober13.3°C · 116 mm · 3.1 hr/day
Around 13 °C with 116 mm of rain and 3.1 hours of sun a day.
Around 13 °C with 116 mm of rain and 3.1 hours of sun a day.
- NovNovember10.1°C · 100 mm · 2.3 hr/day
Around 10 °C with 100 mm of rain and 2.3 hours of sun a day.
Around 10 °C with 100 mm of rain and 2.3 hours of sun a day.
- DecDecember8.7°C · 108 mm · 1.6 hr/day
Around 9 °C with 108 mm of rain and 1.6 hours of sun a day.
Around 9 °C with 108 mm of rain and 1.6 hours of sun a day.
Same climate · neighbouring countries
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