Weather South San Francisco weekend

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

Saturday from morning untill noon cloudy, later morning initially cloudy, later clear. Sunday from morning untill noon overcast, later morning initially overcast, later cloudy.

Friday, Sep 5

64 / 57°F

0.00 in

9 mph

	64 °F	64 °F	5 pm
	59 °F	59 °F	11 pm

sunrise 6:43 am
sunset 7:32 pm

HOURLY

During the day morning overcast, in the afternoon initially overcast, later clear. The highest temperature 64 °F. Total rainfall 0.00 in. At night cloudy. The lowest temperature 57 °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
Friday 09/05/2025
5 AM 8 AM	overcast	59 °F 59 °F	0.00 in	11 fps 8 mph west	29.9 in	91 %	55 °F	100 %	0%	100%	0%	0%
11 AM 2 PM	overcast	64 °F 64 °F	0.0 in	14 fps 9 mph west	29.9 in	74 %	55 °F	100 %	0%	100%	0%	0%
5 PM 8 PM	clear	64 °F 64 °F	0.0 in	16 fps 11 mph west	29.9 in	70 %	55 °F	1 %	0%	1%	0%	0%
11 PM 2 AM	clear	59 °F 61 °F	0.0 in	9 fps 6 mph west	29.9 in	92 %	55 °F	12 %	0%	12%	0%	0%
Saturday 09/06/2025
5 AM 8 AM	cloudy	57 °F 59 °F	0.0 in	6 fps 4 mph southwest	29.9 in	95 %	55 °F	76 %	0%	76%	0%	0%
11 AM 2 PM	clear	70 °F 72 °F	0.0 in	7 fps 5 mph west	30.0 in	64 %	55 °F	3 %	0%	3%	0%	0%
5 PM 8 PM	clear	72 °F 73 °F	0.0 in	13 fps 9 mph west	30.0 in	64 %	57 °F	7 %	0%	7%	0%	0%
11 PM 2 AM	overcast	63 °F 66 °F	0.01 in	5 fps 3 mph southwest	30.1 in	92 %	59 °F	100 %	0%	100%	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.

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Astronomical information South San Francisco

data are always in the local time

Sun and light

Sept. 5, 2025

Sunrise:	Sunset:
6:43 am	7:32 pm
Noon:	Length of day:
1:08 pm	12:49
Start of civil twilight*:	End of civil twilight*:
6:16 am	7:59 pm
Start of nautical twilight*:	End of nautical twilight*:
5:45 am	8:30 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:12 am	9:02 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
09/04/2025 6:09 pm	09/05/2025 4:14 am
Next new moon:	Next full moon:
09/21/2025	09/07/2025