Donegal County Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in Donegal County, Ireland in May.

🔎
Bundoran Donegal Letterkenny Buncrana

Are you planning a trip a to Donegal County, Ireland in May and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Donegal County in May

Donegal County, Ireland is a region in Ireland. May in Donegal County generally has mild temperatures, with precipitation levels ranging from moderate to high.

Temperatures

The average maximum temperatures are mild and range from 13°C (55°F) in Greencastle to 16°C (61°F) in Bundoran. Nighttime temperatures generally drop to 8°C (46°F) in Bundoran and 9°C (48°F) in Greencastle.

For a closer look at conditions across Donegal County, Ireland, refer to the map below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Malin Head with an average of 78 mm (3.1 in) to high rainfall in Kincasslagh with 104 mm (4.1 in).

Explore Donegal County by month

Pick a month to see the average temperature, rainfall and sunshine in Donegal County - and find the best time to visit. (based on Bundoran)

January9°C (48°F) February9°C (48°F) March11°C (52°F) April13°C (55°F) May16°C (61°F) June18°C (64°F) July19°C (66°F) This monthAugust19°C (66°F) September17°C (63°F) October14°C (57°F) November11°C (52°F) December9°C (48°F)
Best Time to Visit Donegal County →

Best Places to Visit in Donegal County in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Donegal County.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Donegal County

What is the weather like in May for some of the most popular destinations in Donegal County, Ireland?

Temperature range in Donegal County (May)

Precipitation variation in Donegal County (May)

Bundoran

In May Bundoran generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 8°C (46°F) and high monthly rainfall. So on average the conditions are mixed that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
16°C (61°F)
18°C (64°F)
Min temperature
5°C (41°F)
8°C (46°F)
10°C (50°F)
Monthly rainfall
93 mm (3.7 in)
100 mm (3.9 in)
109 mm (4.3 in)
Monthly rainy days
18 days
19 days
18 days
Weather conditions
mixed
mixed
good
Climate in Bundoran →

Donegal

In May Donegal generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 7°C (45°F) and high monthly rainfall. So on average the conditions are mixed that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Min temperature
5°C (41°F)
7°C (45°F)
10°C (50°F)
Monthly sun hours
156 hours
203 hours
160 hours
Monthly rainfall
96 mm (3.8 in)
101 mm (4 in)
111 mm (4.4 in)
Monthly rainy days
18 days
19 days
19 days
Weather conditions
mixed
mixed
mixed
Climate in Donegal →

Letterkenny

In May Letterkenny generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are good that month.

« April
May
June »
April
May
June
Max temperature
12°C (54°F)
15°C (59°F)
17°C (63°F)
Min temperature
5°C (41°F)
7°C (45°F)
10°C (50°F)
Monthly sun hours
156 hours
203 hours
160 hours
Monthly rainfall
91 mm (3.6 in)
94 mm (3.7 in)
104 mm (4.1 in)
Monthly rainy days
18 days
18 days
18 days
Weather conditions
mixed
good
mixed
Climate in Letterkenny →

Buncrana

In May Buncrana generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are good that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Min temperature
6°C (43°F)
8°C (46°F)
10°C (50°F)
Monthly sun hours
156 hours
203 hours
160 hours
Monthly rainfall
86 mm (3.4 in)
87 mm (3.4 in)
99 mm (3.9 in)
Monthly rainy days
17 days
18 days
18 days
Weather conditions
mixed
good
good
Climate in Buncrana →

Moville

In May Moville generally has moderate temperatures with maximum daytime temperatures around 13°C (55°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are mixed that month.

« April
May
June »
April
May
June
Max temperature
11°C (52°F)
13°C (55°F)
15°C (59°F)
Min temperature
6°C (43°F)
8°C (46°F)
11°C (52°F)
Monthly sun hours
156 hours
203 hours
160 hours
Monthly rainfall
92 mm (3.6 in)
86 mm (3.4 in)
103 mm (4.1 in)
Monthly rainy days
17 days
18 days
17 days
Weather conditions
mixed
mixed
mixed
Climate in Moville →

Is your destination not in the list? Have a look at all destinations in Donegal County, in Ireland.

Popular cities in May

Day & night temperatures, rainfall and average weather in Donegal County in May.

City Weather Day temp Night temp Rainfall
Bundoran 16°C (61°F) 8°C (46°F) 100 mm (3.9 in)
Donegal 15°C (59°F) 7°C (45°F) 101 mm (4 in)
Letterkenny 15°C (59°F) 7°C (45°F) 94 mm (3.7 in)
Buncrana 15°C (59°F) 8°C (46°F) 87 mm (3.4 in)
Moville 13°C (55°F) 8°C (46°F) 86 mm (3.4 in)
Ballyliffin 14°C (57°F) 9°C (48°F) 79 mm (3.1 in)

Donegal County weather in May: frequently asked questions

What is the weather like in Donegal County, Ireland in May?

Donegal County, Ireland typically experiences mixed weather in May, part of the season. Daytime highs in Bundoran average around 16°C (61°F), and temperatures drop to about 8°C (46°F) at night.

What is the average temperature in Donegal County, Ireland in May?

In Bundoran, the average daytime high in May is 16°C (61°F), while nighttime temperatures drop to around 8°C (46°F).

Does Donegal County, Ireland get a lot of rain in May?

Bundoran typically receives notable rainfall in May, about 100 mm (3.9 in) on average across Donegal County, Ireland.

Is May a Good Time to Visit Donegal County, Ireland?

In our view, May might not be the best time to travel to Donegal County, Ireland with often mixed weather in Bundoran.

Generally speaking, June, July and August provide good weather in Bundoran. On the other hand, the weather in January, February, March, November and December tend to be less favorable.

Interested in more climate information?

We have much more information about the climate in Donegal County.

Weather and climate has detailed information for every country in the world. Are you going to Ireland? Get detailed historical weather averages for many cities in Ireland.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Go to Dingle in Ireland

Dolphins, Whales and breathtaking views. The colorful fishing village Dingle in Ireland has it all and this town is a must for your bucket list.

An Irish adventure like no other in Killarney National Park

Head down to the South West part of the country, County Kerry, to the small town of Killarney. If you want to experience what Ireland is really all about
Horseback riding in Ireland

Ireland is the most ideal place in the world for horseback riding. Combine this with the most hospitable people you will ever encounter and you have an unforgettable dream trip to add to your bucket list.

Must visit in Ireland →