Average water temperature in Boston
The mean water temperature over the year in Boston (Massachusetts), the United States of America.
- The months July, August and September have a pleasant water temperature.
- On average, August has the warmest water temperature with 20°C.
- On average, March has the coldest water temperature with 4°C.
Forecast for Boston (MA)
broken clouds and small chance of slight rain
broken clouds and rain
clear and no rain