Measurements:
°C
°F
CURRENT WEATHER
16:55
Dewey Beach
46°F
N 29 mph
Feels like: 38°F
Precip: 0%
World Resorts USA Dewey Beach Weather

7 Day Weather Forecast

03.13
fri
DAY
42°F
N 15 mph
precip
0%
NIGHT
44°F
NE 24 mph
precip
0%
03.14
sat
DAY
50°F
E 25 mph
precip
0%
NIGHT
44°F
S 6 mph
precip
0%
03.15
sun
DAY
46°F
NW 17 mph
precip
0%
NIGHT
48°F
NW 25 mph
precip
0%
03.16
mon
DAY
58°F
N 25 mph
precip
0%
NIGHT
42°F
SE 24 mph
precip
100%
03.17
tue
DAY
34°F
E 16 mph
precip
0%
NIGHT
30°F
SE 17 mph
precip
0%
03.18
wed
DAY
32°F
NE 6 mph
precip
0%
NIGHT
34°F
N 11 mph
precip
0%
03.19
thu
DAY
42°F
N 13 mph
precip
0%
NIGHT
42°F
NE 8 mph
precip
0%

Dewey Beach Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Dewey Beach was 6.9°F. The maximum and minimum values were 4.4°F and 9.5°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
more details