Water temperature

Connecticut water temperature

Name: Connecticut water temperature
Creator: Tide & Temp
License: https://creativecommons.org/publicdomain/zero/1.0/

Latest NOAA water temperatures across Connecticut, updated daily from CO-OPS sensors and NDBC buoys.

Warmest water in Connecticut today: 64.2 F at 8467150 - Bridgeport, CT (buoy BRHC3); coldest: 62.4 F at New Haven.
3 NOAA CO-OPS water-temperature sensors and 3 NDBC buoys report for Connecticut as of October 18, 2026 (UTC).

NOAA CO-OPS sensors in Connecticut

Latest hourly reading; 30-day range; typical = 5-year mean for October at that sensor.

Station	Water now	30-day range (F)	Typical Oct (F)	Read (local)
Bridgeport	64.2 F 17.9 C	63.9 to 73.4	65.4	05:00 10-18
New Haven	62.4 F 16.9 C	61.0 to 73.9	63.3	05:00 10-18
New London	63.3 F 17.4 C	62.1 to 69.8	63.3	05:00 10-18

Buoys are assigned to the state of the nearest NOAA tide station. Observation times are UTC.

Buoy	Location	Water	Air	Observed
BRHC3	8467150 - Bridgeport, CT	64.2 F 17.9 C	38 F	08:48 UTC
NLHC3	8461490 - New London, CT	63.3 F 17.4 C	37 F	08:48 UTC
NWHC3	8465705 - New Haven, CT	62.6 F 17.0 C	40 F	08:48 UTC