The temperatures in Ireland in May are quite cold with temperatures between 8°C and 13°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Ireland during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Ireland in May 2025.
If you’re planning to visit Ireland in the near future, we highly recommend that you review the 14 day weather forecast for Ireland before you arrive.