World Resorts USA San Diego Weather

San Diego Sea Temperature in January

Average sea water temperature in January:
+59.0°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:
2025
2024
2023

The average sea water temperature in January of 2025 was 56.0°F. The highest and lowest sea temperatures during the month were 57.0°F and 55.6°F.

Monthly sea water temperature in San Diego, °F

Which USA resorts have warmest sea in January?

Place name January 2025 January 2024
Kailua Kona 78.2°F 77.6°F
Honolulu 77.6°F 76.6°F
Hawaii 77.5°F 76.5°F
Maui 76.9°F 76.8°F
Oahu 76.5°F 75.6°F
West Palm Beach 75.5°F 76.5°F
Fort Lauderdale 75.1°F 75.9°F
Kauai 75.0°F 76.0°F
Miami Beach 73.1°F 74.8°F
Islamorada 71.3°F 74.0°F
Key Largo 71.1°F 73.8°F
Miami 70.7°F 73.1°F
Key West 70.3°F 72.7°F
Everglades 68.6°F 71.6°F
South Padre Island 66.7°F 64.8°F
Marco Island 65.2°F 67.2°F
Naples 64.7°F 66.8°F
Sanibel Island 63.7°F 65.6°F
Fort Walton Beach 61.8°F 58.9°F
Corpus Christi 61.6°F 60.3°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 63.2 °F
February 63.3 °F
December 63.7 °F
Rainiest months:
March 2 days
February 2 days
December 2 days
Windiest months:
May 7.5 mph
April 7.4 mph
March 7.2 mph

San Diego on a weather map

San Diego
+57°F
W 6 mph
Feels like: +57°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+75°F
+75°F
+48°F
+61°F
+72°F
+75°F
+68°F
+32°F
+57°F
+50°F
+61°F
+57°F
+48°F
+30°F
24 Hours Forecast
San Diego
Local time: 20:37
January 11, sunday
2100
57°F
W
6 mph
January 12, monday
0000
55°F
W
5 mph
0300
52°F
SW
5 mph
0600
52°F
W
5 mph
0900
54°F
W
5 mph
1200
70°F
SW
2 mph
1500
75°F
SE
6 mph
1800
68°F
SE
6 mph
Units of measurement: °C / °F