Water temperature

Delaware water temperature

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

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

Warmest water in Delaware today: 63.7 F at Bethany Beach, DE (buoy 44084); coldest: 57.6 F at Lewes.
1 NOAA CO-OPS water-temperature sensors and 2 NDBC buoys report for Delaware as of October 18, 2026 (UTC).

NOAA CO-OPS sensors in Delaware

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)
Lewes	57.6 F 14.2 C	57.6 to 76.8	64.4	05:00 10-18

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

Buoy	Location	Water	Air	Waves	Observed
44084	Bethany Beach, DE	63.7 F 17.6 C		6.2 ft	06:26 UTC
LWSD1	8557380 - Lewes, DE	57.7 F 14.3 C	51 F		08:48 UTC