Average sea water temperature in August:
+75.3°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 77.3°F. The highest and lowest sea temperatures during the month were 81.0°F and 74.5°F.
sea water
temperature
temperature
| Dewey Beach |
monthly
weather
weather
| Dewey Beach |
current
weather
weather
| Dewey Beach |
14 days
forecast
forecast
| 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 | 88.8°F | 88.8°F |
| Naples | 88.1°F | 88.7°F |
| New Orleans | 88.0°F | 87.4°F |
| Houston | 87.8°F | 87.8°F |
| Miami | 87.3°F | 88.1°F |
| Galveston | 87.3°F | 87.9°F |
| Miami Beach | 87.1°F | 87.9°F |
| Sarasota | 87.1°F | 88.6°F |
| Siesta Key | 87.1°F | 88.6°F |
| Pensacola | 86.9°F | 86.5°F |
| Clearwater Beach | 86.8°F | 88.5°F |
| Tampa | 86.8°F | 88.6°F |
| Fort Lauderdale | 86.8°F | 87.2°F |
| St. Petersburg | 86.7°F | 88.7°F |
| St. George Island | 86.7°F | 86.5°F |
| Corpus Christi | 86.5°F | 87.0°F |
| West Palm Beach | 86.4°F | 86.8°F |
| Pensacola Beach | 86.4°F | 86.6°F |
| Orange Beach | 86.3°F | 86.5°F |
| Panama City Beach | 86.3°F | 86.2°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: 01:22
November 15, sunday
0300
43°F
E
11 mph
11 mph
0600
43°F
SE
9 mph
9 mph
0900
46°F
SE
12 mph
12 mph
1200
50°F
SE
13 mph
13 mph
1500
50°F
SE
12 mph
12 mph
1800
46°F
SE
9 mph
9 mph
2100
45°F
SE
9 mph
9 mph
November 16, monday
0000
41°F
SE
8 mph
8 mph
