Average sea water temperature in September:
+73.2°F
Minimum sea water temperature in September: | 79.5°F |
Maximum sea water temperature in September: | 68.4°F |
Daily sea water temperature in September, °F
Show year:
2024
2023
2022
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64
67
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73
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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.
sea water
temperature
temperature
Dewey Beach |
monthly
weather
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Dewey Beach |
current
weather
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Dewey Beach |
14 days
forecast
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Dewey Beach |
Monthly sea water temperature 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
50.7
45
40.8
42.3
Which USA resorts have warmest sea in September?
Place name | September 2024 | September 2023 |
---|---|---|
Key West | 87.4°F | 87.3°F |
Naples | 87.2°F | 86.8°F |
Marco Island | 87.2°F | 86.7°F |
Everglades | 87.0°F | 86.8°F |
Siesta Key | 86.8°F | 85.8°F |
Sarasota | 86.7°F | 85.8°F |
Cape Coral | 86.5°F | 86.0°F |
Fort Lauderdale | 86.4°F | 86.2°F |
West Palm Beach | 86.4°F | 86.2°F |
Miami Beach | 86.3°F | 86.3°F |
Clearwater Beach | 86.2°F | 85.5°F |
Tampa | 86.0°F | 85.5°F |
Miami | 86.0°F | 86.0°F |
South Padre Island | 85.8°F | 86.3°F |
Cocoa Beach | 85.2°F | 84.4°F |
Panama City Beach | 84.8°F | 85.1°F |
Santa Rosa Beach | 84.8°F | 85.3°F |
Corpus Christi | 84.7°F | 87.1°F |
Miramar Beach | 84.6°F | 85.2°F |
Mustang Island | 84.6°F | 86.9°F |
Best time for vacation in Dewey Beach
Dewey Beach on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Dewey Beach
Local time: 08:22
April 28, monday
0900

57°F
S
8 mph
8 mph
1200

66°F
SW
6 mph
6 mph
1500

70°F
W
7 mph
7 mph
1800

68°F
N
11 mph
11 mph
2100

59°F
N
9 mph
9 mph
April 29, tuesday
0000

55°F
N
10 mph
10 mph
0300

52°F
N
9 mph
9 mph
0600

54°F
NE
9 mph
9 mph