Measurements:
°C
°F
CURRENT WEATHER
02:48
Dewey Beach
56°F
SW 12 mph
Feels like: 54°F
Precip: 0%
World Resorts USA Dewey Beach Weather

7 Day Weather Forecast

05.19
sun
DAY
62°F
SW 11 mph
precip
87%
NIGHT
56°F
SW 11 mph
precip
0%
05.20
mon
DAY
60°F
SW 10 mph
precip
0%
NIGHT
56°F
NW 5 mph
precip
0%
05.21
tue
DAY
64°F
NW 9 mph
precip
0%
NIGHT
60°F
N 12 mph
precip
0%
05.22
wed
DAY
68°F
N 13 mph
precip
0%
NIGHT
64°F
N 17 mph
precip
0%
05.23
thu
DAY
74°F
NE 11 mph
precip
17%
NIGHT
66°F
NE 4 mph
precip
100%
05.24
fri
DAY
64°F
SW 9 mph
precip
0%
NIGHT
62°F
N 4 mph
precip
0%
05.25
sat
DAY
64°F
SW 5 mph
precip
25%
NIGHT
60°F
SW 5 mph
precip
0%

Dewey Beach Sea Water Temperature in May, °F

Select Year: 2023 2022 2021

The average sea surface temperature in May 2023 for Dewey Beach was 15.4°F. The maximum and minimum values were 13.2°F and 17.5°F respectively.

Dewey Beach on the Weather Map

Best Time to Visit Dewey Beach
The most sunny months:
November 17 days
September 15 days
October 14 days
The most warm months:
July 84.9 °F
August 82.8 °F
September 77.1 °F
Warmest sea temperature:
July 77.8 °F
August 77.5 °F
September 76.2 °F
The most cold months:
January 41.5 °F
February 43.6 °F
December 46.5 °F
The most rainy months:
August 5 days
March 4 days
July 3 days
The most windy months:
March 13 mph
January 12 mph
April 12 mph
more details