South Portland, ME Weather


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The most pleasant months of the year for South Portland are July, August and June. In South Portland, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for South Portland with an average high temperature of 78.4°, which ranks it as cooler than most places in Maine. January is the snowiest month in South Portland with 17.2 inches of snow, and 6 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - South Portland, ME

8 PM PST

Isolated Rain Showers then Mostly Cloudy

42°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightIsolated Rain Showers then Mostly Cloudy39° / 50°SW 0 mph
Friday NightScattered Rain Showers then Light Rain Likely41° / 59°S 10 mph
Saturday NightIsolated Rain Showers then Partly Cloudy38° / 56°W 10 mph
Sunday NightMostly Clear37° / 57°SW 10 mph
Monday NightMostly Clear36° / 56°SW 5 to 10 mph
Tuesday NightScattered Rain Showers41° / 55°S 15 mph
Wednesday NightScattered Rain Showers33° / 52°NW 10 to 15 mph

Weather Highlights

Summer High: the July high is around 78 degrees
Winter Low: the January low is 11
Rain: averages 49 inches of rain a year
Snow: averages 56 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the South Portland area is 9.2 (10=best), which means it is more comfortable than most places in Maine.

9.2 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January31° 11°
February35° 14°
March42° 23°
April53° 33°
May64° 43°
June73° 53°
July78° 58°
August77° 57°
September70° 49°
October59° 37°
November48° 29°
December37° 19°
Hot, Freezing, Rainy, Snowy Days: South Portland
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January030117
February02795
March026115
April013111
May02120
June10120
July10110
August10100
September0190
October010110
November020111
December028115

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for South Portland
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Over 11 years ago

The Greater Portland area has a very livable climate in the summer, some of spring & fall, but winters are usually a bear. There's lots of outdoor things to do nearby  More

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