Weather San Diego Today – Temperature, Rain & Hourly Forecast
Monday, 21/09/2026
20°
Mainly clear · Feels like 22°
Last data 20/09 12:02 · data may be out of date
- High/Low
- 24°/19°
- Humidity
- 85%
- Wind
- 4 km/h
- Rainfall
- 0.0 mm
- UV index
- 6.9
- Pressure
- 1013 hPa
- Sunrise
- 06:36
- Sunset
- 18:46
Today
00
06
12
18
00:0006:0012:0018:00
Summary
San Diego gets a cooler-than-usual day, 19–24°C, under overcast.
Rain is unlikely all day.
Maximum UV of 6.9 at 13:00 — wear a hat for longer stints outdoors.
Humidity of 85% pushes the felt temperature to 22°C.
Wind runs 15 km/h out of the south-west.
Temperatures hold steady near 25°C through the week.
The week ahead is dry, totalling only about 0 mm.
Sunrise 06:36, sunset 18:46.
Best time to visit
Outdoor heat stress
21°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
06:36
0% cloud at sunrise — clear, worth the early start
Skin protection
6.9
Unprotected skin may burn in about 25 minutes
48-hour forecast
22:00
21°
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23:00
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1%
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1%
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1%
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1%
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1%
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1%
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1%
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21°
1%
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1%
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1%
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1%
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Days ahead
| Today | Low/High | Chance of rain | Rainfall | |
|---|---|---|---|---|
| Today 21/09 | Overcast | 19°24° | 6% | 0.0 mm |
| Tomorrow 22/09 | Overcast | 20°24° | 1% | 0.0 mm |
| Wednesday 23/09 | Clear sky | 20°24° | 0% | 0.0 mm |
| Thursday 24/09 | Clear sky | 21°25° | 0% | 0.0 mm |
| Friday 25/09 | Clear sky | 22°28° | 2% | 0.0 mm |
Monthly averages
Common questions
Will it rain in San Diego today?
No. The chance of rain today is only about 6%.
How hot is it in San Diego today?
Between 19°C and 24°C, with a felt maximum of 26°C.
What is the weather in San Diego tomorrow?
Tomorrow: overcast, 20–24°C, with a 1% chance of rain.