Climate in Donegal (Donegal County), Ireland

The graphs below show the monthly weather averages over the year.
* Climate data from: Derry, Ireland (63 KM, 39 Miles).

Average day and night temperature

The mean minimum and maximum temperatures over the year. Show in Fahrenheit

Average min and max temperatures in Derry, Ireland   Copyright © 2022  weather-and-climate.com

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly sunhours in Derry, Ireland   Copyright © 2022  weather-and-climate.com

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc. Show in Inches

Average precipitation (rain/snow) in Derry, Ireland   Copyright © 2022  weather-and-climate.com

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average rainy days (rain/snow) in Derry, Ireland   Copyright © 2022  weather-and-climate.com

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Weather Forecasts for Donegal (Donegal County)

MON May 23
13°C | 6°C
Patchy rain possible

Patchy rain possible

TUE May 24
14°C | 5°C
Patchy rain possible

Patchy rain possible

WED May 25
13°C | 8°C
Moderate rain

Moderate rain

The best time of year to visit Donegal in Ireland

Other facts from our historical climate data:

  • Which is the warmest month in Donegal?
    July has an average maximum temperature of 19.0°C (66.2°F) and is the warmest month of the year.
  • Which is the coldest month in Donegal?
    The coldest month is February with an average maximum temperature of 8.0°C (46.4°F).
  • Which is the wettest month in Donegal?
    October tops the wettest month list with 91mm (3.6in) of rainfall.
  • Which is the driest month in Donegal?
    May is the driest month with 52mm (2.0in) of precipitation.
  • Which is the sunniest month in Donegal?
    May is the sunniest month with an average of 203 hours of sunshine.

  • No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.