Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Average monthly water temperature in South Portland, the United States of America
On this page you find the mean water temperature over the year in South Portland (Maine), the United States of America. Discover the unique water temperature patterns, from its warmest to its coolest months.
Data from: Portland, the United States of America (2 KM, 1 Miles).
Water in South Portland maintains a consistently cool profile. The warmest month, August, has an average temperature of 18°C (64°F).
The coldest water temperature month is March, averaging 3°C (37°F). These conditions are ideal for enjoying peaceful, less crowded water activities.
South Portland Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in South Portland - and find the best time to visit.
South Portland 3-Day Forecast
More climate data for South Portland
Temperature Rainfall Sunshine Humidity Water Temp
See the full South Portland climate overview or explore weather in the United States of America.
Popular in October
Where to go in October - average daytime high across popular destinations.
Miami Beach
29°C (84°F) Orlando
29°C (84°F) Kissimmee
29°C (84°F) Destin26°C (79°F) Los Angeles24°C (75°F) New York City19°C (66°F) Big Bear Lake19°C (66°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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