Measurements:
°C
°F
Dewey Beach
44°F
SE 17 mph
Feels like: 36°F
Precip: 0%
World Resorts USA Dewey Beach Weather

Dewey Beach Sea Water Temperature

Current Sea Water Temperature:
+50.0°F
Maximum Sea Water Temperature in April: 57.2°F
Minimum Sea Water Temperature in April: 45.4°F
Average water temperature in April: 50.7°F

Sea Water Temperature for the Last 10 Days:

April 12 50.0°F April 07 48.4°F
April 11 49.8°F April 06 47.8°F
April 10 51.2°F April 05 50.8°F
April 09 51.8°F April 04 50.0°F
April 08 49.4°F April 03 50.8°F

When is the Warmest Sea for Dewey Beach?

According to our data for the last three years for Dewey Beach the highest average sea water temperature was in July, August and September.

Average Water Temperature by Month, °F

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
13
26
39
52
65
78
91
104
48.1
58.8
67.7
75.7
77.4
77.7
69.6
58.9
50.7
44.5
39.8
41.5

Sea Water Temperature in July

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
67
70
73
76
79
82
85
88

The average sea surface temperature in July 2024 for Dewey Beach was 77.5°F. The maximum and minimum values were 71.8°F and 81.8°F respectively.

Sea Water Temperature in August

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
67
70
73
76
79
82
85
88

The average sea surface temperature in August 2024 for Dewey Beach was 77.0°F. The maximum and minimum values were 71.6°F and 81.8°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
66
69
72
75
78
81
84

The average sea surface temperature in September 2024 for Dewey Beach was 74.0°F. The maximum and minimum values were 71.8°F and 76.8°F respectively.

Best Time to Visit Dewey Beach
The most sunny months:
November 17 days
October 15 days
June 14 days
The most warm months:
July 83.8 °F
August 81.9 °F
June 76.9 °F
Warmest sea temperature:
July 77.7 °F
August 77.4 °F
September 75.7 °F
The most cold months:
January 40.2 °F
February 43.2 °F
December 46.0 °F
The most rainy months:
August 4 days
July 4 days
February 3 days
The most windy months:
March 13 mph
January 12 mph
February 12 mph

Dewey Beach on the Weather Map

USA Resorts:
NAME
Boston +36
Chicago +54
Hawaii +80
Honolulu +80
Houston +86
Las Vegas +96
Los Angeles +76
Miami +86
New York +36
Orlando +80
San Diego +68
San Francisco +60
Sarasota +76
Tampa +80
Washington +52
24 Hours Weather Forecast
Dewey Beach
Local time: 17:51
12 apr, saturday
1800 44°F
SE
17 mph
2100 42°F
S
17 mph
13 apr, sunday
0000 42°F
S
14 mph
0300 40°F
SE
14 mph
0600 42°F
SE
16 mph
0900 48°F
SE
16 mph
1200 52°F
SE
17 mph
1500 58°F
SE
16 mph