London August — performers and revellers on a truck at Notting Hill Carnival

London · United Kingdom

August

Notting Hill Carnival bank holiday weekend — and everywhere else, maximum crowds and expense.

Strong option

#8 of 12 months

There are better months for London — see the full ranking below.

See when to go instead →

Climate

High

24°C

Low

16°C

Rain

50mm

Sun

6.5hrs/day

30-year climate normals · Open Meteo ERA5

How August scores in London

Weather
Excellent
Value
Below average
Crowds
Low
Events
Perfect
Atmosphere
Very good

What you gain in August

  • Notting Hill Carnival (August bank holiday weekend): Europe's largest street festival — two days of Caribbean food, sound systems, and costumed bands through west London
  • Edinburgh Fringe spill-over energy as performers pass through London on their way north
  • Still 24°C and long days — the outdoor city is fully open; lido swimming, riverside walks, and rooftop bars all active

What you sacrifice

  • Highest crowds of the year — Londoners leave for the Med and are replaced by international summer tourism en masse
  • Notting Hill Carnival weekend means acute accommodation shortage and price spikes in W11 and Kensington
  • The tube in August is brutal without air conditioning on many lines — central London travel requires patience

How August compares to May (best month)

FactorAugustMay
Weather
8
8
Value
3
6
Crowds
2
6

August in other destinations

Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within London, not across destinations. Methodology →