World Resorts USA San Francisco Weather

San Francisco weather in January

Weather in San Francisco: January

Average day temperature: 54.7°F
Average night temperature: 49.9°F
Sea water temperature: 52.4°F
Number of sunny days: 15 days
Day length: 9.6 - 10.3 hours
Number of rainy days: 4 days
Precipitation totals: 2.3 in.

Air temperature in January, °F

Show year:
2024
2023
2022

The highest day temperature during January of 2024 was 62°F. At the same time the lowest night temperature was 45°F. Day and night temperature averages during January were 55.4°F and 52.4°F.

Sea water temperature in San Francisco in January, °F

Show year:
2024
2023
2022

The average sea water temperature in January of 2024 was 54.8°F. The highest and lowest sea temperatures during the month were 56.7°F and 53.4°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in January is almost equal.

Precipitation total in January, in.

Precipitation total value in San Francisco in January is 2.9 in. Other months of the year show relatively similar values.

Wind speed in January, mph

The average wind speed value in January is 7.8 mph It makes January one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 5.8.

Best time for vacation in San Francisco

Sunniest months:
June 19 days
September 18 days
October 18 days
Warmest months:
August 66.0 °F
September 65.2 °F
October 64.0 °F
Warmest sea temp:
September 61.8 °F
August 61.5 °F
October 60.3 °F
Coldest months:
December 54.3 °F
January 54.7 °F
February 55.6 °F
Rainiest months:
February 4 days
March 4 days
December 4 days
Windiest months:
May 10.0 mph
June 9.7 mph
April 9.5 mph

San Francisco on a weather map

San Francisco
+52°F
NE 5 mph
Feels like: +48°F
Precip.: 0%
Places in USA:
Name
°F
+43°F
+41°F
+72°F
+72°F
+61°F
+55°F
+72°F
+43°F
+61°F
+57°F
+52°F
+64°F
+63°F
+63°F
+43°F
24 Hours Forecast
San Francisco
Local time: 23:22
March 29, friday
0000
52°F
NE
5 mph
0300
50°F
N
8 mph
0600
50°F
N
11 mph
0900
50°F
N
16 mph
1200
50°F
NW
19 mph
1500
50°F
NW
24 mph
1800
52°F
N
14 mph
2100
52°F
NW
17 mph
Units of measurement: °C / °F