Average sea water temperature in July:
+75.4°F
| Minimum sea water temperature in July: | 80.8°F |
| Maximum sea water temperature in July: | 68.9°F |
Daily sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 77.6°F. The highest and lowest sea temperatures during the month were 80.1°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 July?
| Place name | July 2025 | July 2024 |
|---|---|---|
| New Orleans | 87.4°F | 87.1°F |
| Pass Christian | 87.3°F | 86.7°F |
| Bay Saint Louis | 87.2°F | 86.7°F |
| Clearwater Beach | 87.1°F | 88.3°F |
| St. Petersburg | 87.0°F | 88.0°F |
| Sarasota | 86.9°F | 87.9°F |
| Sanibel Island | 86.9°F | 87.7°F |
| Siesta Key | 86.9°F | 87.9°F |
| Pensacola | 86.9°F | 87.3°F |
| Tampa | 86.8°F | 87.4°F |
| Key West | 86.7°F | 87.6°F |
| Orange Beach | 86.7°F | 86.7°F |
| Pensacola Beach | 86.7°F | 87.1°F |
| Marco Island | 86.6°F | 87.4°F |
| Naples | 86.6°F | 87.2°F |
| Cape Coral | 86.4°F | 87.2°F |
| Galveston | 86.4°F | 86.3°F |
| Islamorada | 86.4°F | 87.4°F |
| Galveston Island | 86.4°F | 86.4°F |
| Miami | 86.3°F | 86.9°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: 18:18
December 23, tuesday
2100
43°F
NE
12 mph
12 mph
December 24, wednesday
0000
43°F
E
12 mph
12 mph
0300
41°F
E
15 mph
15 mph
0600
39°F
SE
20 mph
20 mph
0900
39°F
SE
22 mph
22 mph
1200
41°F
SE
22 mph
22 mph
1500
41°F
SE
20 mph
20 mph
1800
41°F
SE
14 mph
14 mph
