Larne weather in March 2025

Q: How cold is it in Larne in March?

Daytime temperatures usually reach 7°C in Larne in March, falling to 2°C at night.

Q: How sunny is it in Larne in March?

There are normally 3 hours of bright sunshine each day in Larne in March - that's 26% of daylight hours.

Q: Is the sea cold around Larne in March?

The average sea temperature around Larne in March is 7°C.

Q: Does it rain in Larne in March?

There are usually 19 days with some rain in Larne in March and the average monthly rainfall is 93mm.

Expect 45°F daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Larne in March. Check more long-term weather averages for Larne in March before you book your next holiday to Northern Ireland in 2025/2026.

45
45°F max day temperature
3
3 hours of sunshine per day
19
19 days with some rainfall
36
36°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.7
3.7 inches of monthly rainfall
2
2 (Low) UV index
45
45°F sea temperature

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The March weather guide for Northern Ireland (Larne) 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)