Average humidity in Portland (OR)

The mean monthly relative humidity over the year in Portland (Oregon), the United States of America.

Average monthly relative humidity in Portland (OR),

On average, December is the most humid month, at 83.0%.
On average, July is the least humid month, at 63.0%.
The average annual percentage of humidity is 73%.

Weather Forecasts for Portland (OR)

Mon Apr 22

21°C | 4°C

18 km/h

clear and no rain

hourly forecast

Tue Apr 23

23°C | 9°C

11 km/h

partly cloudy and no rain

hourly forecast

Wed Apr 24

18°C | 9°C

11 km/h

overcast and no rain

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

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