Weather in Northern Ireland in may 2025

Below, you have access to the weather forecast for the month of may for most popular cities in North Ireland. These datas are statistics for may from weather reports for many years. The percentage indicates the probability of having the weather mentioned.

Average weather in may in Belfast

tolerable weather

Weather at 6am
49°F

Cloudy

22%

Clear/Sunny

19%

Moderate rain at times

14%

Weather at 12pm
56°F

Cloudy

24%

Clear/Sunny

20%

Partly Cloudy

17%

Weather at 6pm
56°F

Partly Cloudy

22%

Clear/Sunny

21%

Cloudy

18%

Weather at 3am
47°F

Partly Cloudy

23%

Clear/Sunny

23%

Cloudy

20%

Fog

16%

More information about the weather in Belfast in may



Where to go in Northern Ireland in may?

Where to go in Northern Ireland in may: destination map

Legend: perfect weather good tolerable bad very bad

Where to go in each region in may?

County Antrim
(Belfast, Ballycastle (Causeway Coast), Larne...)
56°F to 58°F2 à 8 days50°F to 52°F
tolerable weather
County Armagh
(Armagh, Craigavon, Portadown...)
58°F2 à 4 days
tolerable weather
County Down
(Donwpatrick, Bangor, Newry...)
54°F to 58°F2 à 7 days50°F to 52°F
tolerable weather*
County Fermanagh
(Enniskillen (Fermanagh)...)
58°F6 days
bad weather
County Londonderry
(Derry (Londonderry), Coleraine, Limavady...)
56°F to 58°F3 à 7 days52°F
tolerable weather
County Tyrone
(Strabane, Omagh, Dungannon...)
58°F3 à 4 days
tolerable weather
*over most of the region. Weather may vary locally.


Where should you go in Northern Ireland in may when it comes to the weather?

Remember:
The climate in Northern Ireland in may is tolerable across the board.

Good news: It is not perfect, however, the weather in North Ireland that month is quite good in Bangor (Strangford Lough district). I allows to savor sightseeing in this place. And even why not take a little time to take a nap at the pool under the sun!

If you do not go to spend your time in a lounger by the pool, but, for example to go sightseeing around, the city of Belfast have a OK but just acceptable weather for it in may. Finally, it is not advisable to travel to Enniskillen (Fermanagh), Derry (Londonderry), Donwpatrick, Armagh, Larne and Ballycastle (Causeway Coast) that month because the climate is unfavorable.


Climate in Northern Ireland in may

Climate in Belfast in may

In may, the mean temperature in Belfast is 54°F (maximum temperature is 58°F and minimum temperature is 49°F). The climate is relatively fresh in this city in the month of may, but it is livable by dressing hot. With 3.8in over 7 days, you risk getting wet slightly during your vacations. But this is reasonably and it is only of temporary showers.
With a correct climate, the month of may is okay (but not the best month) for traveling in Belfast in North Ireland.

May
Average temperature 54°F
Highest temperature 58°F
Lowest temperature 49°F
Sea temperature 50°F
Rainfall 3.8in
Number of days with rainfall 7 day(s)
(21%)
Humidity 90%
Daily sunshine hours 13
Cloud cover 56%
Length of day 16:05
Our opinion at whereandwhen.net tolerable
more information about the climate in Belfast in may

Climate in Armagh in may

In the month of may, the mean temperature in Armagh is 52°F (maximum temperature is 58°F and minimum temperature is 47°F). The climate is fairly fresh in that locality in this month, but it is bearable by dressing cosy. With 2.6in over 4 days, you will experience some showers for your journey. But this is rather moderate and you will not be too bothered by it.
With a bad weather, the month of may is not recommended month to go in this city in North Ireland.

May
Average temperature 52°F
Highest temperature 58°F
Lowest temperature 47°F
Rainfall 2.6in
Number of days with rainfall 4 day(s)
(12%)
Humidity 94%
Daily sunshine hours 12
Cloud cover 65%
Length of day 16:03
Our opinion at whereandwhen.net tolerable
more information about the climate in Armagh in may

Climate in Ballycastle (Causeway Coast) in may

In the month of may, maximum temperature is 56°F and minimum temperature is 49°F (for an average temperature of 52°F). The climate is fairly cool there in the month of may, but it is tolerable by dressing warm. With 4.6in over 8 days, you risk getting wet slightly during your holidays. But this is moderate and it is only of temporary showers.
With a bad weather, the month of may is not recommended month to go in that area in North Ireland.

May
Average temperature 52°F
Highest temperature 56°F
Lowest temperature 49°F
Sea temperature 51°F
Rainfall 4.6in
Number of days with rainfall 8 day(s)
(27%)
Humidity 87%
Daily sunshine hours 13
Cloud cover 53%
Length of day 16:12
Our opinion at whereandwhen.net tolerable
more information about the climate in Ballycastle (Causeway Coast) in may

Climate in Derry (Londonderry) in may

In may, maximum temperature is 58°F and minimum temperature is 47°F (for an average temperature of 52°F). The climate is relatively cool here in this month, but it is endurable by dressing hot. With 2.2in over 3 days, you risk getting wet slightly during your holidays. But this is moderate and it will not be continuous.
With a bad weather, may is not the best time to go in this city.

May
Average temperature 52°F
Highest temperature 58°F
Lowest temperature 47°F
Sea temperature 52°F
Rainfall 2.2in
Number of days with rainfall 3 day(s)
(9%)
Humidity 91%
Daily sunshine hours 12
Cloud cover 62%
Length of day 16:10
Our opinion at whereandwhen.net tolerable
more information about the climate in Derry (Londonderry) in may

Climate in Donwpatrick in may

In may, maximum temperature is 56°F and minimum temperature is 50°F (for an average temperature of 52°F). The climate is rather cold there in may, but it is liveable by dressing warm. With 2.4in over 4 days, you will experience some showers for your journey. But this is reasonably and it will not be continuous.
With a bad climate, the month of may is not the best time to go in that area.

May
Average temperature 52°F
Highest temperature 56°F
Lowest temperature 50°F
Sea temperature 51°F
Rainfall 2.4in
Number of days with rainfall 4 day(s)
(12%)
Humidity 87%
Daily sunshine hours 13
Cloud cover 50%
Length of day 16:03
Our opinion at whereandwhen.net tolerable


All cities in Northern Ireland in may

Belfast in maytolerable weather
Armagh in maytolerable weather
Ballycastle (Causeway Coast) in maytolerable weather
Derry (Londonderry) in maytolerable weather
Donwpatrick in maytolerable weather
Enniskillen (Fermanagh) in maybad weather
Larne in maytolerable weather
Annalong in maytolerable weather
Antrim in maytolerable weather
Ballyclare in maytolerable weather
Ballymena in maytolerable weather
Ballymoney in maytolerable weather
Ballywalter in maytolerable weather
Banbridge in maytolerable weather
Bangor in maytolerable weather
Carrickfergus in maytolerable weather
Castlereagh in maytolerable weather
Castlerock in maytolerable weather
Coleraine in maytolerable weather
Cookstown in maytolerable weather
Craigavon in maytolerable weather
Donaghadee in maytolerable weather
Dromore in maytolerable weather
Dundrum in maytolerable weather
Dungannon in maytolerable weather
Glenariff in maytolerable weather
Holywood in maytolerable weather
Kilkeel in maybad weather
Kircubbin in maytolerable weather
Limavady in maytolerable weather
See full list of cities (45)


Weather data for North Ireland in may:

Weather data for North Ireland in may is derived from an average of the weather forecast since 2009 in Northern Ireland. There is a margin of error and these forecasts are to be considered as general information only. The weather in Northern 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 Northern Ireland.


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