Average humidity in Haiku (HI)
The mean monthly relative humidity over the year in Haiku (Maui), Hawaii.
- On average, January is the most humid month, at 78.0%.
- On average, August is the least humid month, at 69.0%.
- The average annual percentage of humidity is 73%.
Forecast for Haiku (HI)
partly cloudy and chance of slight rain
partly cloudy and chance of rain
partly cloudy and rain