World Resorts USA San Francisco Weather

San Francisco Sea Temperature in September

Average sea water temperature in September:
+62.2°F
Minimum sea water temperature in September: 67.6°F
Maximum sea water temperature in September: 55.8°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 64.7°F. The highest and lowest sea temperatures during the month were 67.6°F and 62.2°F.

Monthly sea water temperature in San Francisco, °F

Which USA resorts have warmest sea in September?

Place name September 2026 September 2025
Key West 87.8°F 86.9°F
Naples 87.0°F 86.1°F
Galveston 87.0°F 85.5°F
Siesta Key 86.9°F 84.9°F
Houston 86.9°F 84.9°F
Corpus Christi 86.8°F 85.8°F
Sarasota 86.8°F 84.8°F
West Palm Beach 86.6°F 86.2°F
Fort Lauderdale 86.6°F 86.4°F
New Orleans 86.4°F 84.3°F
Gulf Shores 86.1°F 84.3°F
St. Petersburg 86.1°F 84.1°F
Orange Beach 86.0°F 84.0°F
Pensacola Beach 85.9°F 83.9°F
Tampa 85.9°F 84.3°F
Clearwater Beach 85.9°F 84.0°F
Miami Beach 85.8°F 86.1°F
Panama City Beach 85.8°F 83.4°F
Pensacola 85.7°F 83.9°F
Destin 85.6°F 83.1°F

Best time for vacation in San Francisco

Sunniest months:
June 18 days
October 18 days
April 17 days
Warmest months:
August 65.7 °F
September 65.1 °F
October 64.2 °F
Warmest sea temp:
September 62.2 °F
August 61.9 °F
October 60.8 °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
N 2 mph
Feels like: +55°F
Precip.: 28%
Places in USA:
Name
°F
+34°F
+37°F
+70°F
+61°F
+61°F
+64°F
+63°F
+39°F
+63°F
+55°F
+61°F
+59°F
+55°F
+63°F
+37°F
24 Hours Forecast
San Francisco
Local time: 22:55
November 14, saturday
0000
55°F
N
2 mph
0300
54°F
NW
6 mph
0600
54°F
NW
4 mph
0900
57°F
NW
4 mph
1200
61°F
N
2 mph
1500
63°F
E
3 mph
1800
59°F
E
3 mph
2100
57°F
N
3 mph
Units of measurement: °C / °F