Weather London Today – Temperature, Rain & Hourly Forecast
Monday, 21/09/2026
13°
Clear sky · Feels like 11°
Updated 10 hours ago
- High/Low
- 22°/12°
- Humidity
- 56%
- Wind
- 2 km/h
- Rainfall
- 0.0 mm
- UV index
- 3.0
- Pressure
- 1031 hPa
- Sunrise
- 06:44
- Sunset
- 19:01
Today
00
06
12
18
00:0006:0012:0018:00
Summary
London gets a cooler-than-usual day, 12–22°C, skies are mainly clear.
Rain is unlikely all day.
Maximum UV of 3 at 13:00 — wear a hat for longer stints outdoors.
Humidity of 56% pushes the felt temperature to 11°C.
Wind runs 8 km/h out of the north-west.
Temperatures hold steady near 22°C through the week.
The wettest day ahead is Sunday 27/09 with about 6 mm.
Sunrise 06:44, sunset 19:01.
Best time to visit
Outdoor heat stress
22°C
Peaks at 19:00 — safe
Dry riding window
19:00–09:00
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
06:46
86% cloud at sunrise — thick cloud, poor visibility
Skin protection
3.0
Unprotected skin may burn in about 45 minutes
48-hour forecast
19:00
22°
0%
20:00
21°
0%
21:00
21°
0%
22:00
20°
0%
23:00
20°
0%
00:00
19°
0%
01:00
19°
0%
02:00
18°
0%
03:00
18°
0%
04:00
17°
0%
05:00
17°
0%
06:00
16°
0%
07:00
17°
0%
08:00
17°
0%
09:00
18°
0%
10:00
19°
0%
11:00
20°
0%
12:00
21°
0%
13:00
22°
0%
14:00
22°
0%
15:00
23°
0%
16:00
23°
0%
17:00
23°
0%
18:00
23°
0%
19:00
23°
0%
20:00
23°
0%
21:00
23°
0%
22:00
21°
0%
23:00
20°
0%
00:00
19°
0%
01:00
19°
0%
02:00
18°
1%
03:00
18°
2%
04:00
17°
2%
05:00
17°
2%
06:00
16°
1%
07:00
16°
0%
08:00
15°
0%
09:00
16°
0%
10:00
16°
0%
11:00
17°
1%
12:00
18°
3%
13:00
19°
4%
14:00
20°
5%
15:00
21°
5%
16:00
21°
8%
17:00
20°
15%
18:00
17°
23%
Days ahead
| Today | Low/High | Chance of rain | Rainfall | |
|---|---|---|---|---|
| Today 21/09 | Mainly clear | 12°22° | 0% | 0.0 mm |
| Tomorrow 22/09 | Overcast | 16°23° | 0% | 0.0 mm |
| Wednesday 23/09 | Heavy drizzle | 13°21° | 29% | 3.3 mm |
| Thursday 24/09 | Overcast | 10°18° | 9% | 0.0 mm |
| Friday 25/09 | Light drizzle | 14°22° | 7% | 1.5 mm |
Monthly averages
Common questions
Will it rain in London today?
No. The chance of rain today is only about 0%.
How hot is it in London today?
Between 12°C and 22°C, with a felt maximum of 21°C.
What is the weather in London tomorrow?
Tomorrow: overcast, 16–23°C, with a 0% chance of rain.