World Resorts USA San Francisco Weather

San Francisco Sea Temperature in April

Average sea water temperature in April:
+56.1°F
Minimum sea water temperature in April: 61.7°F
Maximum sea water temperature in April: 51.1°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 59.6°F. The highest and lowest sea temperatures during the month were 61.7°F and 56.7°F.

Monthly sea water temperature in San Francisco, °F

Which USA resorts have warmest sea in April?

Place name April 2026 April 2025
West Palm Beach 78.2°F 78.3°F
Key West 78.2°F 78.0°F
Fort Lauderdale 78.1°F 78.0°F
Miami Beach 78.0°F 78.3°F
Kailua Kona 77.6°F 78.1°F
Miami 77.5°F 77.9°F
Honolulu 76.5°F 77.4°F
Hawaii 76.2°F 77.3°F
Maui 75.9°F 76.6°F
Kauai 75.9°F 74.9°F
Naples 75.8°F 77.0°F
South Padre Island 75.7°F 74.5°F
Tampa 75.3°F 76.6°F
St. Petersburg 75.2°F 76.3°F
Corpus Christi 75.0°F 74.7°F
Oahu 74.9°F 76.4°F
Clearwater Beach 74.7°F 75.6°F
Houston 74.5°F 73.7°F
Sarasota 74.2°F 76.0°F
Siesta Key 73.8°F 75.7°F

Best time for vacation in San Francisco

Sunniest months:
June 18 days
October 18 days
April 17 days
Warmest months:
August 65.5 °F
September 65.0 °F
October 64.2 °F
Warmest sea temp:
September 62.0 °F
August 61.7 °F
October 60.7 °F
Coldest months:
December 54.3 °F
January 54.7 °F
February 55.7 °F
Rainiest months:
March 4 days
December 4 days
January 4 days
Windiest months:
May 9.9 mph
June 9.6 mph
April 9.4 mph

San Francisco on a weather map

San Francisco
+55°F
NE 6 mph
Feels like: +54°F
Precip.: 13%
Places in USA:
Name
°F
+79°F
+77°F
+86°F
+66°F
+82°F
+70°F
+81°F
+75°F
+66°F
+55°F
+66°F
+88°F
+84°F
+82°F
+79°F
24 Hours Forecast
San Francisco
Local time: 06:53
July 16, thursday
0900
63°F
E
7 mph
1200
72°F
E
11 mph
1500
73°F
E
14 mph
1800
63°F
E
14 mph
2100
57°F
E
11 mph
July 17, friday
0000
55°F
E
8 mph
0300
55°F
NE
8 mph
0600
55°F
NE
7 mph
Units of measurement: °C / °F