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 |
| Key Largo | 88.4°F | 88.7°F |
| Naples | 88.1°F | 88.7°F |
| New Orleans | 88.0°F | 87.4°F |
| Houston | 87.8°F | 87.8°F |
| Cape Coral | 87.6°F | 88.7°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. 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 |
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: 00:51
October 25, sunday
0300
57°F
SW
5 mph
5 mph
0600
57°F
SW
6 mph
6 mph
0900
55°F
S
7 mph
7 mph
1200
55°F
S
6 mph
6 mph
1500
57°F
S
2 mph
2 mph
1800
57°F
NW
3 mph
3 mph
2100
59°F
NW
4 mph
4 mph
October 26, monday
0000
57°F
NE
5 mph
5 mph
