London · United Kingdom
September
London's best-kept secret — 20°C, schools back, crowds thin, and the autumn cultural season opens.
Best match
#4 of 12 months
There are better months for London — see the full ranking below.
See when to go instead →Climate
High
20°C
Low
13°C
Rain
55mm
Sun
4.9hrs/day
30-year climate normals · Open Meteo ERA5
How September scores in London
Weather
Very good
Value
Above average
Crowds
Good
Events
Very good
Atmosphere
Excellent
What you gain in September
- ↑Schools return in September — family tourist crowds evaporate almost overnight after the August bank holiday
- ↑London Design Festival, Totally Thames, and the full Southbank autumn programme make the cultural calendar excellent
- ↑Open House London (mid-September): hundreds of private buildings open to the public — one of London's most unique free events
What you sacrifice
- ↓Sunshine drops to 4.9 hours — the days noticeably shorter from August; evenings cool more quickly
- ↓Prices remain 30–40% above winter rates while the city transitions out of peak season
- ↓The Proms (BBC) at Royal Albert Hall run through September — tickets in high demand for top concerts
How September compares to May (best month)
| Factor | September | May ★ |
|---|---|---|
| Weather | 7 | 8 |
| Value | 5 | 6 |
| Crowds | 6 | 6 |
September in other destinations
Lisbon (24.6°C)Barcelona (25.5°C)Tokyo (28.1°C)Bali (30.4°C)Santorini (24.1°C)Paris (21.6°C)New York (23.9°C)Marrakech (31.6°C)Amsterdam (18.8°C)Maldives (30.2°C)Rome (26.5°C)Bangkok (31°C)Istanbul (24.2°C)Vienna (22.1°C)Seoul (25.1°C)Dubrovnik (24.9°C)Rio de Janeiro (27.3°C)Kyoto (28.6°C)Phuket (31°C)Cape Town (19°C)Prague (21°C)Amalfi Coast (27°C)Mexico City (22°C)Medellín (28°C)Fiji (27°C)Sydney (20°C)Iceland (10°C)Tulum (32°C)Dubai (39°C)Singapore (32°C)Hoi An (31°C)
Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within London, not across destinations. Methodology →