Letterkenny weather in July 2026

Q: How hot is it in Letterkenny in July?

Daytime temperatures usually reach 19°C in Letterkenny in July, falling to 12°C at night.

Q: How sunny is it in Letterkenny in July?

There are normally 5 hours of bright sunshine each day in Letterkenny in July - that's 32% of daylight hours.

Q: How warm is the sea around Letterkenny in July?

The average sea temperature around Letterkenny in July is 14°C.

Q: Does it rain in Letterkenny in July?

There are usually 14 days with some rain in Letterkenny in July and the average monthly rainfall is 51mm.

Expect daytime maximum temperatures of 63°F in Letterkenny, Ireland in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 20 days with some rainfall and typically 3.4 inches of rainfall in the month.

63
63°F max day temperature
4
4 hours of sunshine per day
20
20 days with some rainfall
50
50°F min night temperature
17
17 hours of daylight per day
0
No heat & humidity
3.4
3.4 inches of monthly rainfall
6
6 (High) UV index

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The July 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 hot is it in Letterkenny in July?

Daytime temperatures usually reach 66°F in Letterkenny in July, falling to 54°F at night.

How sunny is it in Letterkenny in July?

There are normally 5 hours of bright sunshine each day in Letterkenny in July - that's 32% of daylight hours.

How warm is the sea around Letterkenny in July?

The average sea temperature around Letterkenny in July is 57°F.

Does it rain in Letterkenny in July?

There are usually 14 days with some rain in Letterkenny in July and the average monthly rainfall is 2.0 inches.

Letterkenny July sunrise & sunset times

Browse the sunrise and sunset times for Letterkenny in July 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
Wednesday, 1st July 2026	03:57	21:12
Thursday, 16th July 2026	04:14	20:59
Friday, 31st July 2026	04:38	20:35

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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