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Northern Ireland weather in May 2023
- 1414°C max day temperature
- 1616 days with some rainfall
- 66°C min night temperature
- 1616 hours of daylight per day
- 0No heat & humidity
- 6565 mm of monthly rainfall
- 55 (Moderate) UV index
- 99°C sea temperature
Below are average maximum temperatures at popular destinations in Northern Ireland in May. Select a destination to see more weather parameters.
Recommended for Northern Ireland
The May weather guide for Northern Ireland (Belfast) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the UK
How warm is it in Northern Ireland in May?
Daytime temperatures usually reach 14°C in Belfast, Northern Ireland in May, falling to 6°C at night.
How sunny is it in Northern Ireland in May?
There are normally 6 hours of bright sunshine each day in Belfast, Northern Ireland in May - that's 37% of daylight hours.
Is the sea cold around Northern Ireland in May?
The average sea temperature around Belfast, Northern Ireland in May is 9°C.
Does it rain in Northern Ireland in May?
There are usually 16 days with some rain in Belfast, Northern Ireland in May and the average monthly rainfall is 65mm.
Northern Ireland May sunrise & sunset times
Browse the sunrise and sunset times for Northern Ireland in May 2023. Select a month to view Northern Ireland sunrise and sunset times for the next 12 months. The Northern Ireland sunrise and sunset times shown below are for Belfast.
|Date||Sunrise times||Sunset times|
|Monday, 1st May 2023||05:46||20:57|
|Tuesday, 16th May 2023||05:17||21:24|
|Wednesday, 31st May 2023||04:56||21:47|
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