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 (ME) 3-Day Forecast

10-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.

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