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Portsmouth
Weather averages
ClimateForecastAprilMay >>

Climate in Portsmouth (New Hampshire), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Portsmouth, the United States of America

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Portsmouth, the United States of America

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* Data from: Concord, the United States of America (64 KM, 40 Miles).

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Portsmouth, the United States of America

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Portsmouth, the United States of America

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Portsmouth, the United States of America

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* Data from: Concord, the United States of America (64 KM, 40 Miles).

Weather Forecasts for Portsmouth (NH)

Fri   Apr 19
12°C | 5°C
SE 22 km/h
broken clouds and no rain

broken clouds and no rain

hourly forecast
Sat   Apr 20
16°C | 7°C
SE 18 km/h
7.2 mm
broken clouds and rain

broken clouds and rain

hourly forecast
Sun   Apr 21
14°C | 3°C
W 25 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Portsmouth in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Which is the warmest month in Portsmouth?
    July has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in Portsmouth?
    The coldest month is February with an average maximum temperature of 1°C.
  • Which is the wettest month in Portsmouth?
    June tops the wettest month list with 139 mm of rainfall.
  • Which is the driest month in Portsmouth?
    January is the driest month with 86 mm of precipitation.
  • Which is the sunniest month in Portsmouth?
    July is the sunniest month with an average of 295 hours of sunshine.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     

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