Average sea water temperature in August:
+74.9°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 76.4°F. The highest and lowest sea temperatures during the month were 82.2°F and 74.1°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 August?
| Place name | August 2025 | August 2024 |
|---|---|---|
| Key West | 88.8°F | 87.8°F |
| Naples | 88.7°F | 87.0°F |
| Tampa | 88.6°F | 86.4°F |
| Sarasota | 88.6°F | 87.2°F |
| Clearwater Beach | 88.5°F | 87.0°F |
| Miami | 88.1°F | 86.4°F |
| Miami Beach | 87.9°F | 86.5°F |
| Houston | 87.8°F | 88.0°F |
| New Orleans | 87.4°F | 88.1°F |
| Fort Lauderdale | 87.2°F | 85.8°F |
| Corpus Christi | 87.0°F | 87.9°F |
| Cocoa Beach | 86.8°F | 84.5°F |
| Panama City Beach | 86.2°F | 86.8°F |
| Destin | 86.0°F | 86.9°F |
| Jacksonville | 84.9°F | 82.9°F |
| Orlando | 84.9°F | 83.4°F |
| Daytona Beach | 84.6°F | 83.1°F |
| Tybee Island | 84.5°F | 84.0°F |
| Charleston (SC) | 84.1°F | 83.1°F |
| Isle of Palms | 83.8°F | 83.0°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: 06:28
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
