Best time to swim in Boston in the United States (USA) Sea temperature by month
Do you want to swim in the sea in Boston in the United States (USA)? But when is the best time to go to be sure to have pleasant water for swimming in Boston and be able to swim without catching cold? This month, or a different one? The answer is on this page, with the sea water temperature by month in Boston, based on the average temperatures recorded in previous years.
Best time to swim in Boston: the water temperature by month
Do you want to swim in Boston in the United States (USA)? Based on the sea temperature every month, we tell you our opinion on swimming in that location. For more information about a month, click on the link in the Details column.
| Month | Averagesea temperature | Our opinion | Details |
|---|---|---|---|
| January | 41°F (min: 38°F/max: 45°F) | freezing swimming | Sea temperature in Boston in january |
| February | 38°F (min: 36°F/max: 41°F) | freezing swimming | Sea temperature in Boston in february |
| March | 39°F (min: 36°F/max: 42°F) | freezing swimming | Sea temperature in Boston in march |
| April | 43°F (min: 39°F/max: 48°F) | freezing swimming | Sea temperature in Boston in april |
| May | 49°F (min: 45°F/max: 55°F) | freezing swimming | Sea temperature in Boston in may |
| June | 59°F (min: 53°F/max: 64°F) | freezing swimming | Sea temperature in Boston in june |
| July | 66°F (min: 62°F/max: 70°F) | cool swimming | Sea temperature in Boston in july |
| August | 68°F (min: 66°F/max: 71°F) | cool swimming | Sea temperature in Boston in august |
| September | 65°F (min: 62°F/max: 68°F) | cool swimming | Sea temperature in Boston in september |
| October | 60°F (min: 54°F/max: 65°F) | cold swimming | Sea temperature in Boston in october |
| November | 53°F (min: 50°F/max: 56°F) | freezing swimming | Sea temperature in Boston in november |
| December | 47°F (min: 42°F/max: 52°F) | freezing swimming | Sea temperature in Boston in december |