Measurements:
°C
°F
CURRENT WEATHER
00:09
Dewey Beach
70°F
NE 6 mph
Feels like: 70°F
Precip: 10%
World Resorts USA Dewey Beach Weather

7 Day Weather Forecast

06.25
thu
DAY
76°F
N 12 mph
precip
7%
NIGHT
74°F
N 18 mph
precip
7%
06.26
fri
DAY
82°F
N 6 mph
precip
5%
NIGHT
72°F
SW 3 mph
precip
87%
06.27
sat
DAY
72°F
SW 9 mph
precip
32%
NIGHT
72°F
W 5 mph
precip
30%
06.28
sun
DAY
74°F
W 8 mph
precip
17%
NIGHT
70°F
NW 8 mph
precip
12%
06.29
mon
DAY
74°F
W 9 mph
precip
7%
NIGHT
70°F
NW 7 mph
precip
11%
06.30
tue
DAY
74°F
NW 7 mph
precip
5%
NIGHT
68°F
NW 6 mph
precip
24%
07.01
wed
DAY
74°F
W 8 mph
precip
7%
NIGHT
70°F
NW 8 mph
precip
9%

Dewey Beach Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Dewey Beach was 20.7°F. The maximum and minimum values were 17.4°F and 23.7°F respectively.

Dewey Beach on the Weather Map

Best Time to Visit Dewey Beach
The most sunny months:
November 18 days
October 16 days
January 14 days
The most warm months:
July 84.2 °F
August 81.5 °F
June 77.7 °F
Warmest sea temperature:
July 78.2 °F
August 77.7 °F
September 75.6 °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
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