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South Portland
Weather averages
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Climate in South Portland (Maine), 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.

Monthly hours of sunshine

The average monthly total hours of sunshine over the year
* Data from: Portland, the United States of America (2 KM, 1 Miles).

Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year
* Data from: Portland, the United States of America (2 KM, 1 Miles).

Average water temperature

The mean water temperature over the year.
* Data from: Portland, the United States of America (2 KM, 1 Miles).

Monthly precipitation

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

Monthly rainy days

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

Average humidity

The mean monthly relative humidity over the year
* Data from: Portland, the United States of America (2 KM, 1 Miles).

Weather Forecasts for South Portland (ME)

Tue   Apr 30
10°C | 5°C
NE 11 km/h
2.1 mm
overcast and no rain

overcast and no rain

hourly forecast
Wed   May 01
10°C | 4°C
S 11 km/h
1.3 mm
broken clouds and small chance of slight rain

broken clouds and small chance of slight rain

hourly forecast
Thu   May 02
11°C | 5°C
SE 18 km/h
3.3 mm
overcast and rain

overcast and rain

hourly forecast
5-Day Forecast 10-Day Forecast

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

During the months of June, August 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 South Portland?
    July has an average maximum temperature of 26°C and is the warmest month of the year.
  • Which is the coldest month in South Portland?
    The coldest month is January with an average maximum temperature of 0°C.
  • Which is the wettest month in South Portland?
    June tops the wettest month list with 156 mm of rainfall.
  • Which is the driest month in South Portland?
    January is the driest month with 88 mm of precipitation.
  • Which is the sunniest month in South Portland?
    July is the sunniest month with an average of 278 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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