Weather South San Francisco weekend

Weather forecast for South San Francisco for this and next weekend.

Sunday during the day clear.

Saturday, Jan 10

55 / 45°F

0.00 in

6 mph

	55 °F	52 °F	4 pm
	46 °F	45 °F	10 pm

sunrise 7:24 am
sunset 5:10 pm

HOURLY

During the day clear. The highest temperature 55 °F. At night clear. The lowest temperature 45 °F.

Interactive map weather California, USA

GPS: 37.6547; -122.4078

altitude: 16 ft
local time:

PLACES IN THE AREA

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Weather forecast South San Francisco, California, USA extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Saturday 01/10/2026
4 AM 7 AM	clear	45 °F 41 °F	0.0 in	9 fps 6 mph northeast	30.4 in	73 %	37 °F	3 %	0%	3%	0%	0%
10 AM 1 PM	clear	48 °F 45 °F	0.0 in	10 fps 6 mph northeast	30.4 in	74 %	39 °F	3 %	0%	3%	0%	0%
4 PM 7 PM	clear	55 °F 52 °F	0.0 in	9 fps 6 mph northeast	30.3 in	55 %	37 °F	0 %	0%	0%	0%	0%
10 PM 1 AM	clear	46 °F 43 °F	0.0 in	7 fps 4 mph east	30.3 in	73 %	39 °F	0 %	0%	0%	0%	0%
Sunday 01/11/2026
4 AM 7 AM	clear	45 °F 41 °F	0.0 in	6 fps 4 mph east-northeast	30.3 in	79 %	37 °F	3 %	0%	3%	0%	0%
10 AM 1 PM	clear	50 °F 48 °F	0.0 in	7 fps 5 mph east-northeast	30.4 in	73 %	41 °F	2 %	0%	2%	0%	0%
4 PM 7 PM	clear	55 °F 52 °F	0.0 in	6 fps 4 mph northeast	30.3 in	57 %	39 °F	0 %	0%	0%	0%	0%
10 PM 1 AM	clear	45 °F 41 °F	0.0 in	4 fps 3 mph northeast	30.3 in	79 %	37 °F	5 %	0%	5%	0%	0%

South San Francisco, California, USA - information

State: California, USA

GPS coordinates: 37.6547; -122.4078

Time zone: America / Los Angeles time difference in hours with time in NY is -9 hours

Population: 67 271
Altitude: 16 ft
The administrative part:

California, Sacramento
San Mateo County, San Mateo

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Weather South San Francisco, California, USA. Weather forecast South San Francisco.

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Data source

Weather forecast for South San Francisco is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

Weather with Meteobox for your website

Astronomical information South San Francisco

data are always in the local time

Sun and light

Jan. 10, 2026

Sunrise:	Sunset:
7:24 am	5:10 pm
Noon:	Length of day:
12:17 pm	09:46
Start of civil twilight*:	End of civil twilight*:
6:55 am	5:39 pm
Start of nautical twilight*:	End of nautical twilight*:
6:23 am	6:11 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:51 am	6:42 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
01/10/2026 12:15 am	01/10/2026 11:27 am
Next new moon:	Next full moon:
01/18/2026	02/01/2026