May weather forecastDublin, Ireland
May
Weather in May
The month of May symbolizes the commencement of the warm season within Dublin, with the weather getting noticeably warmer. Temperatures exhibit a comforting increase to a high of around 15.2°C (59.4°F). Despite the warmth, rainfall persists, a remnant of Dublin’s temperate oceanic climate. Leafy parks and scenic natural spaces begin to burst into life, under the increasingly sunlit sky. The rise in the sea temperature marks a shift towards summer, adding a slight warmth to the coastal breeze.Temperature
With May's arrival, Dublin's weather records an average high-temperature of a refreshing 15.2°C (59.4°F), marking little difference from April's 12.4°C (54.3°F). The average temperature during May nights dips to a frosty 9°C (48.2°F).Rainfall
In Dublin, in May, during 11 rainfall days, 58mm (2.28") of precipitation is typically accumulated. In Dublin, during the entire year, the rain falls for 128 days and collects up to 714mm (28.11") of precipitation.Sea temperature
In Dublin, in May, the average water temperature is 10.4°C (50.7°F).Note: In 10.4°C (50.7°F), even brief exposure to 13°C (55.4°F) feels biting, and anything less than 10°C (50°F) risks cold shock and impaired breathing, considering one's health.
Daylight
In Dublin, the average length of the day in May is 15h and 55min.On the first day of May in Dublin, Ireland, sunrise is at 5:49 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 5:03 am and sunset at 9:41 pm IST.
Sunshine
With an average of 6.3h of sunshine, May has the most sunshine of the year.UV index
In May, the average daily maximum UV index in Dublin, Ireland, is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In May, the UV index of 5 transforms into the following advice:
Undertake precautions - Guarding against sun damage is counselled. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Dublin, Ireland
- Average high temperature in May: 15.2°C
The warmest month (with the highest average high temperature) is July (20.2°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in May: 9°C
The month with the highest average low temperature is July (13.5°C).
The coldest months (with the lowest average low temperature) are January and February (3.9°C).
Average rainfall in May
Dublin, Ireland
- Average rainfall in May: 57.9mm
The wettest month (with the highest rainfall) is October (76mm).
The driest month (with the least rainfall) is February (46.1mm).
Average rainfall days in May
Dublin, Ireland
- Average rainfall days in May: 11 days
The months with the highest number of rainy days are January, October and December (12 days).
The months with the least rainy days are June and September (9 days).
Average sea temperature in May
Dublin, Ireland
- Average sea temperature in May: 10.4°C
The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in May /
Average sunshine in May
Dublin, Ireland
- Average daylight in May: 15h and 54min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in May: 6h and 18min
The month with the most sunshine is May (Average sunshine: 6h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average UV index in May
Dublin, Ireland
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 0).
