Average humidity in Katwijk
The mean monthly relative humidity over the year in Katwijk (Zuid-Holland), the Netherlands.
- On average, December is the most humid month, at 87.0%.
- On average, May is the least humid month, at 78.0%.
- The average annual percentage of humidity is 82%.
Forecast for Katwijk
partly cloudy and chance of slight rain
broken clouds and rain
overcast and slight rain