Connecticut River at Old Lyme, Connecticut water temperature

Connecticut River at Old Lyme, Connecticut · Sea/Coast

The current water temperature at Connecticut River at Old Lyme is 25.7 °C (as of August 26, 2026, source: USGS).

25.7 °C

Measured: August 26, 2026 · continuously updated

Nearby waters

East Branch Eightmile River near North Lyme, Connecticut · 12.8 km away21.0 °C Orient Harbor at Orient, New York · 19.8 km away24.3 °C Atlantic, New London · 21.9 km away22.1 °C Poquonnock River at Bluff Point State Park, Connecticut · 26.0 km away26.1 °C Shelter Island Sound at Shelter Island, New York · 29.9 km away25.2 °C

Frequently asked questions

Can you swim at Connecticut River at Old Lyme right now?
The current water temperature is 25.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Connecticut River at Old Lyme?
Currently 25.7 °C (updated continuously).

← All waters