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Portsmouth
Average humidity
ClimateForecastNovemberDecember >>

Average humidity in Portsmouth (NH)

The mean monthly relative humidity over the year in Portsmouth (New Hampshire), the United States of America.

Data from: Concord, the United States of America (64 KM, 40 Miles).
  • On average, September is the most humid month, at 76.0%.
  • On average, April is the least humid month, at 62.0%.
  • The average annual percentage of humidity is 70%.

Forecast for Portsmouth (NH)

Fri   Nov 22
12°C | 5°C
SE 18 km/h
8.2 mm
broken clouds and rain

broken clouds and rain

hourly forecast
Sat   Nov 23
7°C | 4°C
NW 25 km/h
11 mm
overcast and heavy rain

overcast and heavy rain

hourly forecast
Sun   Nov 24
10°C | 3°C
W 32 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

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