Letterkenny weather in March 2026

Q: How warm is it in Letterkenny in March?

Daytime temperatures usually reach 10°C in Letterkenny in March, falling to 3°C at night.

Q: How sunny is it in Letterkenny in March?

There are normally 4 hours of bright sunshine each day in Letterkenny in March - that's 29% of daylight hours.

Q: Is the sea cold around Letterkenny in March?

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

Q: Does it rain in Letterkenny in March?

There are usually 16 days with some rain in Letterkenny in March and the average monthly rainfall is 50mm.

Expect daytime maximum temperatures of 46°F in Letterkenny, Ireland in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 22 days with some rainfall and typically 3.9 inches of rainfall in the month.

46
46°F max day temperature
3
3 hours of sunshine per day
22
22 days with some rainfall
36
36°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.9
3.9 inches of monthly rainfall
2
2 (Low) UV index

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The March weather guide for Ireland (Letterkenny) 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 Ireland

How warm is it in Letterkenny in March?

Daytime temperatures usually reach 50°F in Letterkenny in March, falling to 37°F at night.

How sunny is it in Letterkenny in March?

There are normally 4 hours of bright sunshine each day in Letterkenny in March - that's 29% of daylight hours.

How warm is the sea around Letterkenny in March?

The average sea temperature around Letterkenny in March is 45°F.

Does it rain in Letterkenny in March?

There are usually 16 days with some rain in Letterkenny in March and the average monthly rainfall is 2.0 inches.

Letterkenny March sunrise & sunset times

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st March 2026	07:21	18:07
Monday, 16th March 2026	06:44	18:37
Tuesday, 31st March 2026	06:05	19:06

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Ireland - quick facts
Flight time^✝	1 to 1.5 hours
Time difference	UK +0 hours
Language(s)	English
Currency	Euro
Electricity	G plug (230V)
Driving side	Left
Why visit?	Culture Nature
Tourist info	Tourism Ireland