Hillsborough weather in May 2026

Q: How warm is it in Hillsborough in May?

Daytime temperatures usually reach 14°C in Hillsborough in May, falling to 6°C at night.

Q: How sunny is it in Hillsborough in May?

There are normally 6 hours of bright sunshine each day in Hillsborough in May - that's 37% of daylight hours.

Q: Is the sea cold around Hillsborough in May?

The average sea temperature around Hillsborough in May is 9°C.

Q: Does it rain in Hillsborough in May?

There are usually 16 days with some rain in Hillsborough in May and the average monthly rainfall is 65mm.

Expect daytime maximum temperatures of 57°F in Hillsborough, Northern Ireland in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 2.7 inches of rainfall in the month.

57
57°F max day temperature
6
6 hours of sunshine per day
17
17 days with some rainfall
43
43°F min night temperature
16
16 hours of daylight per day
0
No heat & humidity
2.7
2.7 inches of monthly rainfall
5
5 (Moderate) UV index

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The May weather guide for Northern Ireland (Hillsborough) 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) | Imperial (°F)

More about the UK

How warm is it in Hillsborough in May?

Daytime temperatures usually reach 57°F in Hillsborough in May, falling to 43°F at night.

How sunny is it in Hillsborough in May?

There are normally 6 hours of bright sunshine each day in Hillsborough in May - that's 37% of daylight hours.

How warm is the sea around Hillsborough in May?

The average sea temperature around Hillsborough in May is 48°F.

Does it rain in Hillsborough in May?

There are usually 16 days with some rain in Hillsborough in May and the average monthly rainfall is 2.6 inches.

Hillsborough May sunrise & sunset times

Browse the sunrise and sunset times for Hillsborough in May 2026. Select a month to view Hillsborough sunrise and sunset times for the next 12 months.

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