ClimateForecastAprilMay >>

Climate in Greencastle (Donegal County), Ireland

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

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

Weather Forecasts for Greencastle

Tue   Apr 23
10°C | 7°C
N 25 km/h
broken clouds and no rain

broken clouds and no rain

Wed   Apr 24
10°C | 6°C
N 14 km/h
broken clouds and no rain

broken clouds and no rain

Thu   Apr 25
10°C | 5°C
N 14 km/h
0.6 mm
broken clouds and  chance of slight rain

broken clouds and chance of slight rain

The best time of year to visit Greencastle in Ireland

Other facts from our historical weather data:

  • Which is the warmest month in Greencastle?
    August has an average maximum temperature of 17°C and is the warmest month of the year.
  • Which is the coldest month in Greencastle?
    The coldest month is February with an average maximum temperature of 9°C.
  • Which is the wettest month in Greencastle?
    November tops the wettest month list with 148 mm of rainfall.
  • Which is the driest month in Greencastle?
    May is the driest month with 86 mm of precipitation.
  • Which is the sunniest month in Greencastle?
    May is the sunniest month with an average of 203 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.