Ireland in may: average Weather, Temperature and Climate, Where to go?
Weather in Ireland in may 2025
Below, you have access to the weather forecast for the month of may for most popular cities in Ireland. These datas are probabilities for may from weather reports for many years. The percentage indicates the possibility of having the weather indicated.
Average weather in may in Dublin
tolerable weather
Weather at 6am
49°F
Partly Cloudy
32% of time
26%
25%
9%
Weather at 12pm
56°F
Cloudy
36% of time
29%
22%
10%
Weather at 6pm
56°F
Partly Cloudy
29% of time
26%
23%
20%
Weather at 3am
49°F
28%
25%
18%
13%
Where to go in Ireland in may?
Where to go in Ireland in may: destination map
Where to go in each region in may?
| Connacht (Galway, Connemara National Park, Belmullet...) | 54°F to 59°F | 4 à 9 days | 52°F to 54°F | tolerable weather* |
| Leinster (Dublin, Kilkenny, Dundalk...) | 56°F to 59°F | 2 à 6 days | 52°F | tolerable weather |
| Munster (Cork, Dingle, Limerick...) | 56°F to 59°F | 4 à 9 days | 54°F | tolerable weather* |
| North East Ireland (Ulster) (Letterkenny, Killybegs, Dungloe...) | 54°F to 58°F | 3 à 8 days | 52°F | tolerable weather |
Where should you go in Ireland in may when it comes to the weather?
Remember:
The climate in Ireland in may is tolerable across the board.
Rainfall increases in both frequency and intensity during the month of May. Despite the rise in temperatures, the climatic conditions of all the localities remain barely favorable. However, compared to the previous month - the climate throughout May in Ireland is slowly improving.
May in Malin Head and Northern Ireland
If visiting the north, expect to have showers that can occur at any time. However, as they last only a few hours - this provides time to enjoy the cloud thinnings to discover the region in all its splendor.
May in Birr and central Ireland
Misty, cold and wet, the days are disadvantaged by a weather in Ireland throughout May that is somewhat capricious. If travelling to Birr, wear both waterproof and warm clothing that can provide a comfortable fit.
May in Dublin and the East Coast of Ireland
The rise in temperatures in the middle of the day will allow to feel a little freshness and especially that with the cloud thinnings, it is possible to have a beautiful sunshine. However, due to the abundance of precipitation, prepare to have showers at the end of the day.
May in Valentia and the South-west Coast of Ireland
Weather conditions in Valentia are characterized by the presence of showers. Even if the temperatures are rising slightly, the freshness is still present.
Climate in Ireland in may
Climate in Dublin in may
In the month of may, maximum temperature is 58°F and minimum temperature is 49°F (for an average temperature of 52°F). The climate is fairly cold around this city in the month of may, but it is livable by dressing hot. With 2.3in over 3 days, you will experience some showers throughout your stay. But this is reasonably and it is only of temporary showers.
With proper weather, may is okay (but not the best month) for traveling in that area.
| May | |||
| Average temperature | 52°F | ||
| Highest temperature | 58°F | ||
| Lowest temperature | 49°F | ||
| Sea temperature | 51°F | ||
| Rainfall | 2.3in | ||
| Number of days with rainfall | 3 day(s) (11%) | ||
| Humidity | 90% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 52% | ||
| Length of day | 15:54 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Cork in may
In the month of may, maximum temperature is 58°F and minimum temperature is 49°F (for an average temperature of 54°F). The climate is quite cool in this location in this month, but it is tolerable by dressing cosy. With 3.7in over 6 days, rain may occur for your vacations. But this is reasonably and it will not be continuous.
With a correct climate, the month of may is okay (but not good month) for traveling in Cork.
| May | |||
| Average temperature | 54°F | ||
| Highest temperature | 58°F | ||
| Lowest temperature | 49°F | ||
| Sea temperature | 54°F | ||
| Rainfall | 3.7in | ||
| Number of days with rainfall | 6 day(s) (20%) | ||
| Humidity | 92% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 55% | ||
| Length of day | 15:41 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Galway in may
In the month of may, maximum temperature is 59°F and minimum temperature is 49°F (for an average temperature of 54°F). The climate is rather fresh around this city in the month of may, but it is tolerable by dressing hot. With 4.3in over 7 days, you will experience some showers for your stay. But this is pretty moderate and it will not be continuous.
With proper weather, the month of may is okay (but not good month) for traveling in this locality.
| May | |||
| Average temperature | 54°F | ||
| Highest temperature | 59°F | ||
| Lowest temperature | 49°F | ||
| Sea temperature | 53°F | ||
| Rainfall | 4.3in | ||
| Number of days with rainfall | 7 day(s) (22%) | ||
| Humidity | 92% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 61% | ||
| Length of day | 15:54 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Belmullet in may
In may, maximum temperature is 54°F and minimum temperature is 52°F (for an average temperature of 54°F). The climate is fairly cool here in the month of may, but it is tolerable by dressing hot. With 5.4in over 9 days, rainfall can happen throughout your journey. But this is rather moderate and it will not be continuous.
With a bad climate, may is not recommended month to go in this locality in Ireland.
| May | |||
| Average temperature | 54°F | ||
| Highest temperature | 54°F | ||
| Lowest temperature | 52°F | ||
| Sea temperature | 53°F | ||
| Rainfall | 5.4in | ||
| Number of days with rainfall | 9 day(s) (30%) | ||
| Humidity | 84% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 57% | ||
| Length of day | 16:02 | ||
| Our opinion at whereandwhen.net | bad |
Climate in Connemara National Park in may
In the month of may, the mean temperature in Connemara National Park is 52°F (maximum temperature is 56°F and minimum temperature is 47°F). The climate is relatively cool in this location in this month, but it is endurable when dressing hot. With 3.7in over 6 days, rainfall can happen during your holidays. But this is moderate and it is only of temporary showers.
With proper weather, may is okay (but not good time) for traveling in Connemara National Park in Ireland.
| May | |||
| Average temperature | 52°F | ||
| Highest temperature | 56°F | ||
| Lowest temperature | 47°F | ||
| Sea temperature | 53°F | ||
| Rainfall | 3.7in | ||
| Number of days with rainfall | 6 day(s) (19%) | ||
| Humidity | 89% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 60% | ||
| Length of day | 15:56 | ||
| Our opinion at whereandwhen.net | tolerable |
All cities in Ireland in may
| Dublin in may | tolerable weather |
| Cork in may | tolerable weather |
| Galway in may | tolerable weather |
| Belmullet in may | bad weather |
| Connemara National Park in may | tolerable weather |
| Dingle in may | tolerable weather |
| Dundalk in may | tolerable weather |
| Dungloe in may | tolerable weather |
| Kilkenny in may | tolerable weather |
| Killybegs in may | tolerable weather |
| Letterkenny in may | tolerable weather |
| Limerick in may | tolerable weather |
| Achill Island in may | bad weather |
| Aran Islands in may | tolerable weather |
| Ardmore in may | tolerable weather |
| Ballycastle in may | bad weather |
| Birr in may | tolerable weather |
| Bundoran in may | tolerable weather |
| Burren National Park in may | tolerable weather |
| Cashel in may | bad weather |
| Castletownbere in may | tolerable weather |
| Dalkey Island in may | tolerable weather |
| Derrybeg in may | tolerable weather |
| Donegal in may | tolerable weather |
Weather data for Ireland in may:
Weather data for Ireland in may is derived from an average of the weather forecast since 2009 in Ireland. There is a margin of error and these forecasts are to be considered as general information only. The weather in Ireland can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Ireland.