Average humidity in Castlebar
The mean monthly relative humidity over the year in Castlebar (Mayo), Ireland.
- On average, January is the most humid month, at 90.0%.
- On average, May is the least humid month, at 73.0%.
- The average annual percentage of humidity is 83%.
Forecast for Castlebar
broken clouds and no rain
broken clouds and chance of slight rain
overcast and heavy rain