World Resorts USA Dewey Beach Weather

Dewey Beach sea water temperature

Current sea water temperature:
+49.8°F
Minimum sea water temperature in April: 56.5°F
Maximum sea water temperature in April: 45.9°F
Average sea water temperature in April: 50.6°F

Sea water temperature for the last 10 days:

April 17 49.8°F April 12 50.0°F
April 16 50.4°F April 11 49.8°F
April 15 49.1°F April 10 51.1°F
April 14 48.2°F April 9 51.6°F
April 13 49.6°F April 8 49.5°F

When is the warmest sea in Dewey Beach?

Based on the data about daily sea water temperature for the last three years the warmest sea in Dewey Beach was noticed in July, August and September.

Monthly Sea Temperatures in Dewey Beach, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
12
24
36
48
60
72
84
96
48.3
57.9
65.9
73.2
74.6
74.9
67.7
58
50.6
45
40.8
42.3

Sea water temperature in July, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
64
67
70
73
76
79
82
85

The average sea water temperature in July of 2024 was 74.8°F. The highest and lowest sea temperatures during the month were 78.6°F and 69.6°F.

Sea water temperature in August, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
65
68
71
74
77
80
83

The average sea water temperature in August of 2024 was 74.3°F. The highest and lowest sea temperatures during the month were 78.6°F and 69.4°F.

Sea water temperature in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
64
67
70
73
76
79
82

The average sea water temperature in September of 2024 was 71.6°F. The highest and lowest sea temperatures during the month were 74.1°F and 69.6°F.

Best time for vacation in Dewey Beach

Sunniest months:
November 17 days
October 15 days
June 14 days
Warmest months:
July 80.4 °F
August 78.7 °F
June 74.2 °F
Warmest sea temp:
July 74.9 °F
August 74.6 °F
September 73.2 °F
Coldest months:
January 41.2 °F
February 43.8 °F
December 46.4 °F
Rainiest months:
August 4 days
July 4 days
February 3 days
Windiest months:
March 13.3 mph
January 12.8 mph
February 12.5 mph

Dewey Beach on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+55°F
+64°F
+75°F
+75°F
+68°F
+59°F
+81°F
+61°F
+84°F
+63°F
+55°F
+82°F
+88°F
+75°F
+61°F
24 Hours Forecast
Dewey Beach
Local time: 18:39
April 17, thursday
2100
52°F
NE
7 mph
April 18, friday
0000
48°F
NE
6 mph
0300
46°F
NE
7 mph
0600
45°F
NE
9 mph
0900
54°F
N
11 mph
1200
63°F
N
17 mph
1500
61°F
N
21 mph
1800
59°F
N
21 mph
Units of measurement: °C / °F