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Ireland weather in May

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 is the weather like in Ireland in May?

May in Ireland generally has moderate temperatures, with precipitation levels ranging from moderate to high.

The average maximum temperatures are moderate and range from 13°C in Greencastle to 16°C in Tullamore. Nighttime temperatures generally drop to 8°C in Tullamore and 9°C in Greencastle.

In May, precipitation varies across different areas. From moderate rainfall in Rosslare with an average of 61 mm to high rainfall in Glencar with 112 mm. Most cities enjoy a balanced amount of sunshine, with around 188 hours of sunlight anticipated in Dublin. This ensures the days are neither too dim nor excessively sunny.

To learn more about the conditions in specific areas of Ireland in May, check out the map below. For more details on the yearly weather, visit our Ireland climate page.

Where to go in Ireland in May

Find the average weather conditions in May for the most popular destinations in Ireland on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Ireland

What is the weather like in May for the 5 most popular destinations in Ireland?

Average weather in Dublin

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

Dublin
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
6°C 
157 hours 
69 mm 
15 days 
16°C 
8°C 
188 hours 
67 mm 
16 days 
June   >> June
>>  
18°C 
11°C 
180 hours 
78 mm 
15 days 
Climate in Dublin

Average weather in Killarney

In May Killarney generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 7°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Killarney
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
5°C 
157 hours 
101 mm 
16 days 
poor 
16°C 
7°C 
180 hours 
98 mm 
18 days 
June   >> June
>>  
18°C 
9°C 
160 hours 
96 mm 
17 days 
Climate in Killarney

Average weather in Galway

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

Galway
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
14°C 
5°C 
132 hours 
85 mm 
16 days 
16°C 
8°C 
157 hours 
86 mm 
18 days 
June   >> June
>>  
18°C 
10°C 
139 hours 
89 mm 
17 days 
Climate in Galway

Average weather in Kenmare

In May Kenmare generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 7°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Kenmare
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
5°C 
157 hours 
107 mm 
16 days 
poor 
16°C 
7°C 
180 hours 
105 mm 
18 days 
June   >> June
>>  
18°C 
10°C 
160 hours 
101 mm 
17 days 
Climate in Kenmare

Average weather in Cork

In May Cork generally has moderate temperatures with maximum daytime temperatures around 15°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Cork
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
6°C 
161 hours 
77 mm 
15 days 
15°C 
9°C 
194 hours 
72 mm 
17 days 
June   >> June
>>  
17°C 
11°C 
176 hours 
74 mm 
15 days 
Climate in Cork

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

Is May the best 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. Interested in the weather conditions in a specific month? Select the month below.

  • January      
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  • May      
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  • 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 climate conditions. Find out where to go with our weather planner.