The temperatures in Monaghan in May are quite cold with temperatures between 5°C and 14°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Monaghan 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 Monaghan in May 2025.
If you’re planning to visit Monaghan in the near future, we highly recommend that you review the 14 day weather forecast for Monaghan before you arrive.
Temperatures
14° / 5°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
66
mm
Sun Hours
2.5
Hrs
