World Resorts USA San Diego Weather

San Diego Sea Temperature in January

Average sea water temperature in January:
+59.1°F
Minimum sea water temperature in January: 62.8°F
Maximum sea water temperature in January: 55.6°F

Daily sea water temperature in January, °F

Show year:
2026
2025
2024

The average sea water temperature in January of 2026 was 61.5°F. The highest and lowest sea temperatures during the month were 62.8°F and 60.6°F.

Monthly sea water temperature in San Diego, °F

Which USA resorts have warmest sea in January?

Place name January 2026 January 2025
Kailua Kona 78.3°F 78.2°F
Honolulu 77.2°F 77.6°F
Hawaii 77.2°F 77.5°F
Maui 77.0°F 76.9°F
Kauai 77.0°F 75.0°F
West Palm Beach 76.6°F 75.5°F
Oahu 76.1°F 76.5°F
Fort Lauderdale 75.9°F 75.1°F
Miami Beach 74.0°F 73.1°F
Key West 72.5°F 70.3°F
Miami 71.2°F 70.7°F
Everglades 70.8°F 68.6°F
South Padre Island 69.5°F 66.7°F
Naples 67.7°F 64.7°F
Cape Coral 67.3°F 64.3°F
Cocoa Beach 66.9°F 60.9°F
Siesta Key 65.0°F 61.5°F
Sarasota 65.0°F 61.2°F
Orlando 64.8°F 59.8°F
Tampa 64.3°F 60.4°F

Best time for vacation in San Diego

Sunniest months:
July 21 days
June 20 days
August 20 days
Warmest months:
August 78.9 °F
September 77.9 °F
July 76.2 °F
Warmest sea temp:
August 69.9 °F
September 69.0 °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 7.2 mph

San Diego on a weather map

San Diego
+61°F
S 5 mph
Feels like: +61°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+75°F
+75°F
+64°F
+61°F
+70°F
+72°F
+70°F
+39°F
+61°F
+64°F
+55°F
+48°F
+37°F
+18°F
24 Hours Forecast
San Diego
Local time: 00:29
March 17, tuesday
0300
57°F
S
5 mph
0600
57°F
S
3 mph
0900
68°F
S
4 mph
1200
86°F
E
6 mph
1500
82°F
SE
8 mph
1800
73°F
E
6 mph
2100
66°F
E
3 mph
March 18, wednesday
0000
64°F
E
2 mph
Units of measurement: °C / °F