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SeaTac
Average humidity
ClimateForecastNovemberDecember >>

Average humidity in SeaTac (WA)

The mean monthly relative humidity over the year in SeaTac (Washington State), the United States of America.


  • On average, December is the most humid month, at 80.0%.
  • On average, July is the least humid month, at 65.0%.
  • The average annual percentage of humidity is 73%.

Forecast for SeaTac (WA)

Sat   Nov 23
11°C | 5°C
S 14 km/h
0.8 mm
broken clouds and chance of slight rain

broken clouds and chance of slight rain

hourly forecast
Sun   Nov 24
8°C | 5°C
SE 11 km/h
21 mm
overcast and heavy rain

overcast and heavy rain

hourly forecast
Mon   Nov 25
10°C | 5°C
E 11 km/h
7 mm
broken clouds and rain

broken clouds and rain

hourly forecast
5-Day Forecast 10-Day Forecast

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