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 |
monthly
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| Dewey Beach |
current
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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 |
|---|---|---|
| Hilo | 77.3°F | 77.2°F |
| Molokai | 77.3°F | 77.4°F |
| 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 |
| Oahu | 76.1°F | 76.5°F |
| Fort Lauderdale | 75.9°F | 75.1°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 |
| Corpus Christi | 63.9°F | 61.6°F |
| Destin | 62.8°F | 61.4°F |
| Clearwater Beach | 61.8°F | 58.1°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: 06:30
July 02, thursday
0900
79°F
NE
9 mph
9 mph
1200
84°F
N
5 mph
5 mph
1500
84°F
N
12 mph
12 mph
1800
82°F
N
16 mph
16 mph
2100
79°F
N
14 mph
14 mph
July 03, friday
0000
77°F
NE
11 mph
11 mph
0300
77°F
NE
9 mph
9 mph
0600
75°F
NE
8 mph
8 mph
