Weather San Francisco Today – Temperature, Rain & Hourly Forecast
Monday, 21/09/2026
15°
Overcast · Feels like 14°
Updated 13 hours ago
- High/Low
- 16°/14°
- Humidity
- 93%
- Wind
- 12 km/h
- Rainfall
- 0.0 mm
- UV index
- 6.4
- Pressure
- 1014 hPa
- Sunrise
- 06:56
- Sunset
- 19:07
Today
00
06
12
18
00:0006:0012:0018:00
Summary
San Francisco gets a cooler-than-usual day, 14–16°C, under fog.
Almost no chance of rain today.
Maximum UV of 6.4 at 14:00 — wear a hat for longer stints outdoors.
Humidity of 93% pushes the felt temperature to 14°C.
Wind runs 18 km/h out of the west.
Temperatures climb over the next few days, peaking at 23°C on Wednesday 23/09.
The week ahead is dry, totalling only about 0 mm.
Sunrise 06:56, sunset 19:07.
Best time to visit
Outdoor heat stress
14°C
Peaks at 22:00 — safe
Dry riding window
22:00–12:00
14 hours dry; 1 window(s) in the next 14 hours
Drying laundry
Workable
0 sunny hours, 0 wet hours between 07:00 and 17:00
Sunrise viewing
06:57
100% cloud at sunrise — thick cloud, poor visibility
Skin protection
6.4
Unprotected skin may burn in about 25 minutes
48-hour forecast
22:00
14°
2%
23:00
14°
1%
00:00
14°
1%
01:00
14°
1%
02:00
14°
1%
03:00
13°
1%
04:00
13°
1%
05:00
14°
1%
06:00
14°
1%
07:00
14°
1%
08:00
14°
1%
09:00
15°
1%
10:00
16°
1%
11:00
18°
1%
12:00
20°
0%
13:00
21°
0%
14:00
21°
0%
15:00
21°
0%
16:00
20°
0%
17:00
19°
0%
18:00
18°
0%
19:00
16°
0%
20:00
16°
0%
21:00
16°
0%
22:00
16°
0%
23:00
16°
0%
00:00
15°
0%
01:00
15°
0%
02:00
15°
0%
03:00
15°
0%
04:00
15°
0%
05:00
15°
0%
06:00
15°
0%
07:00
15°
0%
08:00
16°
0%
09:00
17°
0%
10:00
20°
0%
11:00
21°
0%
12:00
22°
0%
13:00
22°
0%
14:00
23°
0%
15:00
23°
0%
16:00
22°
0%
17:00
21°
0%
18:00
20°
0%
19:00
18°
0%
20:00
18°
0%
21:00
17°
0%
Days ahead
| Today | Low/High | Chance of rain | Rainfall | |
|---|---|---|---|---|
| Today 21/09 | Fog | 14°16° | 2% | 0.0 mm |
| Tomorrow 22/09 | Overcast | 13°21° | 1% | 0.0 mm |
| Wednesday 23/09 | Overcast | 15°23° | 0% | 0.0 mm |
| Thursday 24/09 | Overcast | 15°20° | 0% | 0.0 mm |
| Friday 25/09 | Overcast | 15°20° | 0% | 0.0 mm |
Monthly averages
Common questions
Will it rain in San Francisco today?
No. The chance of rain today is only about 2%.
How hot is it in San Francisco today?
Between 14°C and 16°C, with a felt maximum of 15°C.
What is the weather in San Francisco tomorrow?
Tomorrow: overcast, 13–21°C, with a 1% chance of rain.
San Francisco
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