Measurements:
°C
°F
CURRENT WEATHER
23:48
Dewey Beach
60°F
E 9 mph
Feels like: 60°F
Precip: 6%
World Resorts USA Dewey Beach Weather

7 Day Weather Forecast

10.26
mon
DAY
62°F
SE 7 mph
precip
5%
NIGHT
60°F
E 9 mph
precip
6%
10.27
tue
DAY
60°F
SW 10 mph
precip
7%
NIGHT
60°F
W 11 mph
precip
15%
10.28
wed
DAY
62°F
W 7 mph
precip
10%
NIGHT
62°F
NW 6 mph
precip
22%
10.29
thu
DAY
62°F
NW 2 mph
precip
9%
NIGHT
60°F
NE 9 mph
precip
10%
10.30
fri
DAY
66°F
E 8 mph
precip
6%
NIGHT
60°F
SW 14 mph
precip
7%
10.31
sat
DAY
56°F
SW 9 mph
precip
17%
NIGHT
60°F
W 9 mph
precip
22%
11.01
sun
DAY
64°F
NW 11 mph
precip
21%
NIGHT
64°F
NW 14 mph
precip
24%

Dewey Beach Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Dewey Beach was 18.4°F. The maximum and minimum values were 15.9°F and 20.4°F respectively.

Dewey Beach on the Weather Map

Best Time to Visit Dewey Beach
The most sunny months:
November 18 days
June 15 days
October 15 days
The most warm months:
July 84.1 °F
August 81.6 °F
June 77.6 °F
Warmest sea temperature:
July 78.3 °F
August 78.1 °F
September 75.8 °F
The most cold months:
January 39.5 °F
February 41.8 °F
December 45.1 °F
The most rainy months:
August 4 days
February 3 days
March 3 days
The most windy months:
March 13 mph
January 13 mph
February 12 mph
more details