Dublin

Ireland Weather in May

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

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Dublin Killarney Galway Cork

Planning a getaway to Ireland this May and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Ireland in May

May in Ireland 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 Tullamore. Nighttime temperatures generally drop to 8°C (46°F) in Tullamore and 9°C (48°F) in Greencastle.

For specific regional insights in Ireland, refer to the map provided below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Rosslare with an average of 61 mm (2.4 in) to high rainfall in Glencar with 112 mm (4.4 in).

Average sunshine

Most areas see decent amounts of sunshine this month. Dublin gets around 188 hours of sunlight, providing a pleasant balance of sun and clouds. If you'd prefer more guaranteed sunshine, our weather planner can show you sunnier spots around the world.

Explore Ireland by month

Pick a month to see the average temperature, rainfall and sunshine in Ireland — and find the best time to visit. (based on Dublin)

January9°C (48°F) February10°C (50°F) March11°C (52°F) April13°C (55°F) May16°C (61°F) June18°C (64°F) This monthJuly20°C (68°F) August20°C (68°F) September18°C (64°F) October15°C (59°F) November12°C (54°F) December10°C (50°F)
Best Time to Visit Ireland →

Best Places to Visit in Ireland in May

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

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 Ireland

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

Temperature range in Ireland (May)

Precipitation variation in Ireland (May)

Dublin

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

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
16°C (61°F)
18°C (64°F)
Min temperature
6°C (43°F)
8°C (46°F)
11°C (52°F)
Monthly sun hours
157 hours
188 hours
180 hours
Monthly rainfall
69 mm (2.7 in)
67 mm (2.6 in)
78 mm (3.1 in)
Monthly rainy days
15 days
16 days
15 days
Weather conditions
unpleasant
tolerable
pleasant
Climate in Dublin →

Killarney

In May Killarney generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are tolerable 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)
7°C (45°F)
9°C (48°F)
Monthly sun hours
157 hours
180 hours
160 hours
Monthly rainfall
101 mm (4 in)
98 mm (3.9 in)
96 mm (3.8 in)
Monthly rainy days
16 days
18 days
17 days
Weather conditions
poor
tolerable
pleasant
Climate in Killarney →

Galway

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

« April
May
June »
April
May
June
Max temperature
14°C (57°F)
16°C (61°F)
18°C (64°F)
Min temperature
5°C (41°F)
8°C (46°F)
10°C (50°F)
Monthly sun hours
132 hours
157 hours
139 hours
Monthly rainfall
85 mm (3.3 in)
86 mm (3.4 in)
89 mm (3.5 in)
Monthly rainy days
16 days
18 days
17 days
Weather conditions
tolerable
tolerable
pleasant
Climate in Galway →

Kenmare

In May Kenmare generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 7°C (45°F) and high monthly rainfall. So on average the conditions are unpleasant 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)
7°C (45°F)
10°C (50°F)
Monthly sun hours
157 hours
180 hours
160 hours
Monthly rainfall
107 mm (4.2 in)
105 mm (4.1 in)
101 mm (4 in)
Monthly rainy days
16 days
18 days
17 days
Weather conditions
poor
unpleasant
tolerable
Climate in Kenmare →

Cork

In May Cork generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are tolerable 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)
9°C (48°F)
11°C (52°F)
Monthly sun hours
161 hours
194 hours
176 hours
Monthly rainfall
77 mm (3 in)
72 mm (2.8 in)
74 mm (2.9 in)
Monthly rainy days
15 days
17 days
15 days
Weather conditions
unpleasant
tolerable
tolerable
Climate in Cork →

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

Popular cities in May

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

City Weather Day temp Night temp Rainfall
Dublin 16°C (61°F) 8°C (46°F) 67 mm (2.6 in)
Killarney 16°C (61°F) 7°C (45°F) 98 mm (3.9 in)
Galway 16°C (61°F) 8°C (46°F) 86 mm (3.4 in)
Cork 15°C (59°F) 9°C (48°F) 72 mm (2.8 in)
Doolin 15°C (59°F) 9°C (48°F) 99 mm (3.9 in)
Rosslare 13°C (55°F) 10°C (50°F) 61 mm (2.4 in)

Ireland weather in May: frequently asked questions

What is the weather like in Ireland in May?

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

What is the average temperature in Ireland in May?

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

Does Ireland get a lot of rain in May?

Not particularly. Dublin averages just 67 mm (2.6 in) of rain in May, making it a mostly dry month for Ireland.

Is May a Good Time to Visit Ireland?

In our opinion, May is a good time to visit Ireland with overall tolerable weather in Dublin. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Ireland is in July and August with generally perfect weather in Dublin. The weather in January, February and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Ireland.

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.

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