Average monthly water temperature in Winthrop, the United States of America
On this page you find the mean water temperature over the year in Winthrop (Massachusetts), the United States of America. Discover the unique water temperature patterns, from its warmest to its coolest months.
In Winthrop, water temperatures vary throughout the year. The warmest month is August, with an average water temperature of 20°C (68°F).
The coldest month is February, with an average temperature of 4°C (39°F). These seasonal variations make Winthrop a great destination for different kinds of aquatic activities.
Winthrop Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Winthrop - and find the best time to visit.
Winthrop 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Winthrop climate overview or explore weather in the United States of America.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
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