Climate in Donegal (Donegal County), Ireland

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

Average day and night temperature

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

Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Monthly precipitation

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

Monthly rainy days

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

Weather Forecasts for Donegal (Donegal County)

MON Dec 06
42°F | 35°F

Heavy rain

TUE Dec 07
42°F | 34°F

Heavy rain

WED Dec 08
45°F | 40°F

Moderate rain

The best time of year to visit Donegal in Ireland

Here are some average weather facts we collected from our historical climate data:

  • The months of January, October, November and December have a high chance of precipitation.
  • The warmest month is July with an average maximum temperature of 19°C (66°F).
  • The coldest month is February with an average maximum temperature of 8°C (46°F).
  • October is the most wet month. This month should be avoided if you are not a big fan of rain.
  • May is the driest month.
  • May is the most sunny month.
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.