weathermetro
Cities / United States
/ California
☀️ South San Francisco weather
Clear sky. .
Feels like 12° Wind 4 km/h NE Humidity 82% Pressure 1014 hPa UV 3 Air Good ☀ 06:45 - 19:29
Right now it is 13° in South San Francisco with clear skies and today's high is 28° with an overnight low of 12° . The sun rises at 06:45 and sets at 19:29, giving 12h 44m of daylight. Over the coming week highs range from 18° to 30° .
South San Francisco is in California, United States, sitting 4 m above sea level, with a population of about 67,000. Local time is America/Los_Angeles (UTC−7), and every time on this page is shown in it.
Next 24 hours - temperature
11°
20°
29°
28°
12°
03:00 · 12.7° · 0 mm
04:00 · 12.3° · 0 mm
05:00 · 12.2° · 0 mm
06:00 · 12.1° · 0 mm
07:00 · 11.9° · 0 mm
08:00 · 14° · 0 mm
09:00 · 17° · 0 mm
10:00 · 19.8° · 0 mm
11:00 · 22° · 0 mm
12:00 · 24.7° · 0 mm
13:00 · 27.3° · 0 mm
14:00 · 28.4° · 0 mm
15:00 · 26.6° · 0 mm
16:00 · 24.8° · 0 mm
17:00 · 23° · 0 mm
18:00 · 21.6° · 0 mm
19:00 · 20.6° · 0 mm
20:00 · 19.5° · 0 mm
21:00 · 19.8° · 0 mm
22:00 · 18.8° · 0 mm
23:00 · 17.4° · 0 mm
00:00 · 17° · 0 mm
01:00 · 16.4° · 0 mm
02:00 · 15.6° · 0 mm
Precipitation
03:00 · 0 mm
03:00
04:00 · 0 mm
05:00 · 0 mm
06:00 · 0 mm
06:00
07:00 · 0 mm
08:00 · 0 mm
09:00 · 0 mm
09:00
10:00 · 0 mm
11:00 · 0 mm
12:00 · 0 mm
12:00
13:00 · 0 mm
14:00 · 0 mm
15:00 · 0 mm
15:00
16:00 · 0 mm
17:00 · 0 mm
18:00 · 0 mm
18:00
19:00 · 0 mm
20:00 · 0 mm
21:00 · 0 mm
21:00
22:00 · 0 mm
23:00 · 0 mm
00:00 · 0 mm
00:00
01:00 · 0 mm
02:00 · 0 mm
Hour by hour
TIME TEMP FEELS RAIN CONDITIONS
03:00
☀️
12.7°
12°
-
Clear sky
04:00
☀️
12.3°
11.4°
-
Clear sky
05:00
☀️
12.2°
11.3°
-
Clear sky
06:00
☀️
12.1°
11.4°
-
Clear sky
07:00
☀️
11.9°
11.3°
-
Clear sky
08:00
☀️
14°
14.4°
-
Clear sky
09:00
☀️
17°
17.2°
-
Clear sky
10:00
☀️
19.8°
19.4°
-
Clear sky
11:00
☀️
22°
21.2°
-
Clear sky
12:00
☀️
24.7°
23.8°
-
Clear sky
13:00
☀️
27.3°
25.9°
-
Clear sky
14:00
☀️
28.4°
27.4°
-
Clear sky
☀️
TodaySeptember 7th
Avg 19° Low 12° at 07:00
High 28° at 14:00
Wind ~22 km/h
Clear
00:00
14°
02:00
13°
04:00
12°
06:00
12°
08:00
14°
10:00
20°
12:00
25°
14:00
28°
16:00
25°
18:00
22°
20:00
20°
22:00
19°
☀️
TuesdaySeptember 8th
Avg 21° Low 14° at 07:00
High 29° at 13:00
Wind ~21 km/h
Clear
Partly Cloudy
Cloudy
00:00
17°
02:00
16°
04:00
14°
06:00
14°
08:00
17°
10:00
23°
12:00
28°
14:00
28°
16:00
27°
18:00
23°
20:00
20°
22:00
20°
☁️
WednesdaySeptember 9th
Avg 24° Low 20° at 01:00
High 30° at 12:00
Feels 28° Wind ~13 km/h
Cloudy
Cloudy
00:00
21°
02:00
21°
04:00
21°
06:00
21°
08:00
22°
10:00
27°
12:00
30°
14:00
30°
16:00
28°
18:00
26°
20:00
24°
22:00
22°
☀️
ThursdaySeptember 10th
Avg 21° Low 17° at 23:00
High 25° at 13:00
Feels 23° Wind ~14 km/h
Cloudy
Clear
00:00
21°
02:00
21°
04:00
20°
06:00
19°
08:00
19°
10:00
22°
12:00
25°
14:00
25°
16:00
24°
18:00
21°
20:00
19°
22:00
18°
☀️
FridaySeptember 11th
Avg 18° Low 16° at 07:00
High 21° at 14:00
Feels 18° Wind ~20 km/h
Partly Cloudy
Cloudy
Clear
Partly Cloudy
00:00
17°
02:00
16°
04:00
16°
06:00
16°
08:00
16°
10:00
18°
12:00
20°
14:00
21°
16:00
20°
18:00
19°
20:00
17°
22:00
16°
☀️
SaturdaySeptember 12th
Avg 16° Low 14° at 05:00
High 18° at 14:00
Feels 13° Wind ~33 km/h
Clear
00:00
15°
02:00
15°
04:00
15°
06:00
14°
08:00
15°
10:00
16°
12:00
18°
14:00
18°
16:00
18°
18:00
17°
20:00
16°
22:00
15°
☀️
SundaySeptember 13th
Avg 17° Low 14° at 04:00
High 23° at 14:00
Feels 20° Wind ~15 km/h
Clear
00:00
15°
02:00
14°
04:00
14°
06:00
14°
08:00
15°
10:00
18°
12:00
21°
14:00
23°
16:00
21°
18:00
19°
20:00
16°
22:00
15°
☀️
MondaySeptember 14th
Avg 17° Low 14° at 06:00
High 22° at 13:00
Wind ~17 km/h
Clear
00:00
15°
02:00
15°
04:00
14°
06:00
14°
08:00
15°
10:00
19°
12:00
22°
14:00
22°
16:00
20°
18:00
18°
20:00
16°
22:00
15°
☁️
TuesdaySeptember 15th
Avg 16° Low 15° at 03:00
High 19° at 14:00
Feels 15° Wind ~24 km/h
Cloudy
Clear
00:00
15°
02:00
15°
04:00
15°
06:00
15°
08:00
15°
10:00
17°
12:00
18°
14:00
19°
16:00
19°
18:00
18°
20:00
16°
22:00
16°
☀️
WednesdaySeptember 16th
Avg 17° Low 15° at 07:00
High 20° at 14:00
Feels 18° Wind ~18 km/h
Cloudy
Clear
00:00
16°
02:00
16°
04:00
16°
06:00
15°
08:00
16°
10:00
17°
12:00
19°
14:00
20°
16:00
19°
18:00
18°
20:00
16°
22:00
16°
☁️
ThursdaySeptember 17th
Avg 17° Low 16° at 00:00
High 19° at 14:00
Feels 16° Wind ~22 km/h
Cloudy
Clear
00:00
16°
02:00
16°
04:00
16°
06:00
16°
08:00
16°
10:00
17°
12:00
18°
14:00
19°
16:00
19°
18:00
18°
20:00
16°
22:00
16°
☀️
FridaySeptember 18th
Avg 17° Low 15° at 23:00
High 20° at 14:00
Feels 18° Wind ~17 km/h
Partly Cloudy
Cloudy
Clear
00:00
16°
02:00
16°
04:00
16°
06:00
16°
08:00
16°
10:00
17°
12:00
19°
14:00
20°
16:00
20°
18:00
18°
20:00
16°
22:00
15°
⛅
SaturdaySeptember 19th
Avg 17° Low 14° at 03:00
High 20° at 14:00
Feels 18° Wind ~16 km/h
Clear
Partly Cloudy
Cloudy
Partly Cloudy
Clear
00:00
15°
02:00
14°
04:00
14°
06:00
14°
08:00
15°
10:00
18°
12:00
20°
14:00
20°
16:00
20°
18:00
19°
20:00
17°
22:00
16°
☀️
SundaySeptember 20th
Avg 16° Low 15° at 06:00
High 20° at 14:00
Feels 17° Wind ~20 km/h
Clear
Clear
00:00
16°
02:00
15°
04:00
15°
06:00
15°
08:00
15°
10:00
17°
12:00
19°
14:00
20°
16:00
19°
18:00
17°
20:00
16°
22:00
16°
☀️
MondaySeptember 21st
Avg 16° Low 15° at 23:00
High 20° at 14:00
Feels 17° Wind ~18 km/h
Partly Cloudy
Clear
00:00
15°
02:00
15°
04:00
15°
06:00
15°
08:00
15°
10:00
17°
12:00
19°
14:00
20°
16:00
19°
18:00
17°
20:00
16°
22:00
15°
🌤️
TuesdaySeptember 22nd
Avg 17° Low 0° at 06:00
High 0° at 14:00
Feels 19° Wind ~15 km/h
Partly Cloudy
Clear
Partly Cloudy
Unknown
00:00
15°
02:00
14°
04:00
14°
06:00
14°
08:00
15°
10:00
18°
12:00
20°
14:00
21°
16:00
20°
18:00
0°
20:00
0°
22:00
0°
Sun
☀️ Sunrise 06:45 · Sunset 19:29
12h 44m of daylight · America/Los_Angeles
Air quality
PM2.5 9.1 µg/m³ - Good
No reason to change your plans - open the windows.
Source: Copernicus CAMS, updated hourly.
Tools for South San Francisco
Common questions about South San Francisco weather
Will it rain in South San Francisco today?
No rain is in the forecast for South San Francisco today.
What is the temperature in South San Francisco right now?
It is 13° in South San Francisco right now. Today runs between a low of 12° and a high of 28° .
What time is sunrise and sunset in South San Francisco?
The sun rises at 06:45 and sets at 19:29 local time in South San Francisco today, giving 12h 44m of daylight.
What is the air quality in South San Francisco?
PM2.5 in South San Francisco is currently 9.1 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.
How accurate is the South San Francisco forecast, and how far ahead does it go?
This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers South San Francisco best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.
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© 2026 WeatherMetro · Weather data: ECMWF, NOAA, DWD, Météo-France, ECCC, MeteoSwiss and others (CC-BY 4.0) · Air quality & history: Copernicus CAMS / C3S · Location data: GeoNames (CC-BY) · Alerts: NWS, MeteoAlarm, ECCC