Average humidity in Viterbo
The mean monthly relative humidity over the year in Viterbo (Lazio), Italy.
- On average, December is the most humid month, at 77.0%.
- On average, July is the least humid month, at 72.0%.
- The average annual percentage of humidity is 75%.
Weather Forecasts for Viterbo
broken clouds and thunder
partly cloudy and rain
broken clouds and rain