Can you swim here today?
Cold Spring Harbor
Connecticut · Bay
Comfortable for a swim today
As of August 21, 2026, the water temperature at Cold Spring Harbor is 80°F (27°C), measured by NOAA buoy 44069, 24.3 miles away.
The water's in a comfortable range. Still check depth, currents, and the forecast, and follow any posted advisories before getting in.
Water temp
80°F
27°C
Live data from NOAA buoy 44069 (24.3 mi away), as of Aug 21, 1:30 AM UTC.
Before you get in
- Never swim alone — and keep weaker swimmers within arm's reach.
- Scout depth and entry/exit points before you get in.
- Read the current: avoid fast, rising, or murky water.
- Check the forecast — get out well before storms or lightning.
- Obey posted signs, flags, and lifeguard guidance.
Read next
Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.