Which is the hottest month in Donegal?

The hottest time of year in Donegal is normally July. Expect maximum daytime temperatures to reach 19°C.

Which month has the most rain in Donegal?

In terms of rainfall, December is usually the wettest month in Donegal with 75mm on average. There are normally 17 days in December with some rain.

When is it sunniest in Donegal?

The sunniest time of year in Donegal is normally May with bright sunshine on average for 38% of daylight hours; that's 6 hours of sunshine per day.

When is the sea warmest in Donegal?

The sea is usually at its warmest in Donegal in August when the water temperature reaches 15°C.

Best time to visit Donegal

Q: When is the best time to visit Donegal?

The best times to visit Donegal, Ireland are in July and August Maximum daytime temperature = 22 - 30°C.

The best times to visit Donegal, Ireland are in July and August based on our default weather conditions. Update your weather preferences to see which months best match.

Donegal by month

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

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When is the best time to visit Donegal?

The best times to visit Donegal, Ireland are in July and August based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]

Change the criteria to reflect your weather preferences.

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Jan
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Feb
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Mar
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Apr
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May
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Jun
1
Jul
1
Aug
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Sep
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Oct
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Nov
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Dec

Change criteria

Max Day Temperature (°F)

43
Jan
43
Feb
46
Mar
52
Apr
57
May
61
Jun
63
Jul
63
Aug
59
Sep
54
Oct
46
Nov
45
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Ireland (Donegal) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)