Average sea water temperature in January:
+41.9°F
| Minimum sea water temperature in January: | 47.1°F |
| Maximum sea water temperature in January: | 34.2°F |
Daily sea water temperature in January, °F
Show year:
2026
2025
2024
The average sea water temperature in January of 2026 was 39.2°F. The highest and lowest sea temperatures during the month were 42.1°F and 34.7°F.
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| Dewey Beach |
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| Dewey Beach |
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| Dewey Beach |
14 days
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| Dewey Beach |
Monthly sea water temperature in Dewey Beach, °F
Which USA resorts have warmest sea in January?
| Place name | January 2026 | January 2025 |
|---|---|---|
| Honolulu | 77.2°F | 77.6°F |
| Hawaii | 77.2°F | 77.5°F |
| Maui | 77.0°F | 76.9°F |
| Kauai | 77.0°F | 75.0°F |
| West Palm Beach | 76.6°F | 75.5°F |
| Oahu | 76.1°F | 76.5°F |
| Miami Beach | 74.0°F | 73.1°F |
| Key West | 72.5°F | 70.3°F |
| Miami | 71.2°F | 70.7°F |
| Naples | 67.7°F | 64.7°F |
| Cocoa Beach | 66.9°F | 60.9°F |
| Sarasota | 65.0°F | 61.2°F |
| Orlando | 64.8°F | 59.8°F |
| Tampa | 64.3°F | 60.4°F |
| Daytona Beach | 64.1°F | 59.7°F |
| Fort Walton Beach | 63.2°F | 61.8°F |
| Destin | 62.8°F | 61.4°F |
| Santa Rosa Beach | 62.4°F | 61.1°F |
| Pensacola Beach | 62.1°F | 61.5°F |
| Santa Catalina Island | 61.9°F | 58.5°F |
Best time for vacation in Dewey Beach
Dewey Beach on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Dewey Beach
Local time: 06:48
August 16, sunday
0900
75°F
NW
9 mph
9 mph
1200
72°F
NW
13 mph
13 mph
1500
70°F
NW
17 mph
17 mph
1800
70°F
NW
21 mph
21 mph
2100
72°F
N
22 mph
22 mph
August 17, monday
0000
73°F
N
15 mph
15 mph
0300
73°F
NE
3 mph
3 mph
0600
73°F
N
7 mph
7 mph
