Average monthly water temperature in Lexington, the United States of America
On this page you find the mean water temperature over the year in Lexington (Massachusetts), the United States of America. Take a closer look at the water temperature patterns and what they mean for swimming and recreation.
Water temperatures in Lexington fluctuate across the seasons. The warmest month, August, averages 20°C (68°F).
The coldest water temperature month is February, averaging 4°C (39°F). Seasonal shifts offer opportunities to explore different activities depending on the time of year.