Average sea water temperature in August:
+75.2°F
| Minimum sea water temperature in August: | 82.2°F |
| Maximum sea water temperature in August: | 69.4°F |
Daily sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 77.9°F. The highest and lowest sea temperatures during the month were 81.0°F and 74.5°F.
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| Dewey Beach |
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| Dewey Beach |
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| Dewey Beach |
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| Dewey Beach |
Monthly sea water temperature in Dewey Beach, °F
Which USA resorts have warmest sea in August?
| Place name | August 2026 | August 2025 |
|---|---|---|
| Key West | 88.2°F | 88.8°F |
| New Orleans | 87.8°F | 87.4°F |
| Houston | 87.7°F | 87.8°F |
| Naples | 87.4°F | 88.7°F |
| St. George Island | 86.6°F | 86.5°F |
| Miami | 86.5°F | 88.1°F |
| Miami Beach | 86.4°F | 87.9°F |
| Sarasota | 86.2°F | 88.6°F |
| Santa Rosa Beach | 86.2°F | 85.9°F |
| Panama City Beach | 86.1°F | 86.2°F |
| West Palm Beach | 86.1°F | 86.8°F |
| Pensacola Beach | 86.1°F | 86.6°F |
| Clearwater Beach | 86.0°F | 88.5°F |
| Destin | 86.0°F | 86.0°F |
| Tampa | 85.9°F | 88.6°F |
| Hilton Head Island | 85.9°F | 85.0°F |
| Edisto Beach | 85.7°F | 84.3°F |
| Tybee Island | 85.7°F | 84.5°F |
| Fort Walton Beach | 85.7°F | 86.0°F |
| Charleston (SC) | 85.3°F | 84.1°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: 06:46
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
