World Resorts USA San Diego Weather

San Diego Sea Temperature in July

Average sea water temperature in July:
+68.8°F
Minimum sea water temperature in July: 73.9°F
Maximum sea water temperature in July: 62.8°F

Daily sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 70.0°F. The highest and lowest sea temperatures during the month were 73.9°F and 65.5°F.

Monthly sea water temperature in San Diego, °F

Which USA resorts have warmest sea in July?

Place name July 2026 July 2025
Key West 88.5°F 86.7°F
Key Largo 88.2°F 86.2°F
Clearwater Beach 87.9°F 87.1°F
Naples 87.7°F 86.6°F
Tampa 87.6°F 86.8°F
Sarasota 87.6°F 86.9°F
Cape Coral 87.6°F 86.4°F
Siesta Key 87.6°F 86.9°F
New Orleans 87.5°F 87.4°F
Miami 87.4°F 86.3°F
Miami Beach 87.0°F 86.0°F
Houston 86.7°F 86.3°F
Fort Lauderdale 86.6°F 85.0°F
Galveston 86.4°F 86.4°F
Hilton Head Island 86.3°F 85.7°F
St. George Island 86.3°F 86.4°F
Tybee Island 86.3°F 85.4°F
Pensacola 86.1°F 86.9°F
Jekyll Island 86.1°F 84.6°F
Orange Beach 86.1°F 86.7°F

Best time for vacation in San Diego

Sunniest months:
November 20 days
July 20 days
August 20 days
Warmest months:
August 79.3 °F
September 77.9 °F
July 76.5 °F
Warmest sea temp:
August 70.0 °F
September 69.3 °F
July 68.8 °F
Coldest months:
January 63.6 °F
December 63.7 °F
February 63.8 °F
Rainiest months:
March 2 days
February 2 days
January 2 days
Windiest months:
May 7.5 mph
April 7.4 mph
March 7.1 mph

San Diego on a weather map

San Diego
+70°F
SE 6 mph
Feels like: +70°F
Precip.: 4%
Places in USA:
Name
°F
+48°F
+52°F
+77°F
+63°F
+72°F
+79°F
+72°F
+55°F
+70°F
+59°F
+70°F
+70°F
+73°F
+61°F
24 Hours Forecast
San Diego
Local time: 21:54
October 25, sunday
0000
70°F
S
6 mph
0300
70°F
S
4 mph
0600
68°F
S
4 mph
0900
70°F
S
3 mph
1200
73°F
SE
8 mph
1500
73°F
SE
12 mph
1800
72°F
SE
11 mph
2100
72°F
SE
9 mph
Units of measurement: °C / °F