World Resorts USA Dewey Beach Weather

Dewey Beach Sea Temperature in July

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.

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
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
Naples 86.6°F 87.2°F
Galveston 86.4°F 86.3°F
Miami 86.3°F 86.9°F
Panama City Beach 86.3°F 86.8°F
Houston 86.3°F 86.4°F
Destin 86.3°F 86.6°F
Key Largo 86.2°F 87.1°F
Santa Rosa Beach 86.2°F 86.6°F
Fort Walton Beach 86.1°F 86.4°F

Best time for vacation in Dewey Beach

Sunniest months:
November 18 days
October 16 days
January 14 days
Warmest months:
July 80.8 °F
August 78.4 °F
June 74.9 °F
Warmest sea temp:
July 75.4 °F
August 74.9 °F
September 73.1 °F
Coldest months:
January 40.5 °F
February 42.6 °F
December 45.6 °F
Rainiest months:
August 4 days
February 3 days
March 3 days
Windiest months:
March 13.3 mph
January 13.1 mph
February 12.8 mph

Dewey Beach on a weather map

Dewey Beach
+39°F
SW 11 mph
Feels like: +32°F
Precip.: 74%
Places in USA:
Name
°F
+54°F
+72°F
+72°F
+88°F
+86°F
+75°F
+77°F
+68°F
+39°F
+81°F
+68°F
+73°F
+75°F
+75°F
+39°F
24 Hours Forecast
Dewey Beach
Local time: 18:07
February 26, thursday
2100
37°F
SW
7 mph
February 27, friday
0000
36°F
SW
5 mph
0300
36°F
SW
5 mph
0600
32°F
SW
6 mph
0900
30°F
W
6 mph
1200
34°F
W
6 mph
1500
36°F
W
6 mph
1800
34°F
NW
7 mph
Units of measurement: °C / °F