Average humidity in St Mellion
The mean monthly relative humidity over the year in St Mellion (Cornwall), the United Kingdom.
- On average, December is the most humid month, at 86.0%.
- On average, May is the least humid month, at 79.0%.
- The average annual percentage of humidity is 82%.
Forecast for St Mellion
almost clear and no rain
overcast and slight rain
broken clouds and no rain