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How Is the Weather in London in August?

Updated: June 12, 2023

This post is an overview of the weather in August in London in August.

We give tips on what to expect for temperatures and rainfall, as well as what to pack and things to do. 


August is perhaps the best time of year in London as this month provides comfortable and relatively dry weather for most outdoor activities and for just exploring the city.

How Hot is London in August?

Afternoon high temperatures will tend to be around 22-23 C (mid-70s F) early in the month and about 21 C (near 70 F) by the end of the month.  

Average August Temperatures London

A couple of the warmer days early in the month can see afternoon temperatures rising up to 28-29 C (mid-80s F).

Overnight and early morning low temperatures tend to be near 15-16 C (60 F) early in the month cooling down to 15-16 C (upper 50s F) near the end of the month.  

A couple of the cooler mornings could see temperatures dipping down to 11-12 C (lower 50s F).


With about 17-18 days seeing sunny or at least partly sunny skies, August is a great time for walking tours around London while only 7-8 days are likely to see rainfalls of 1mm (.04 inches) or more.  

How Much Rain in August in London

Daylight hours range from over 15 hours early in August gradually diminishing to under 14 hours towards month’s end.  

Most days wind will not be an issue, averaging between 2 mph and 16 mph (4kph-26 kph).


Summer clothes are good but you should also bring along some heavier clothes for the cooler evenings and early mornings.  

A light sweater, light jacket, or windbreaker might also be a good idea.  

What to Wear in August in London

Don’t forget a good pair of walking shoes and an umbrella for a few wet days.


Below is our top 10 list of things to do in August in London.

Please read our full post on things to do this month in London and our post on things to do any time in London, for more ideas. 

And if you are planning on visiting many of London’s top attractions, then you should consider a tourist attraction discount pass.

These passes could save up to 55% of retail ticket prices to tours, attractions, and restaurants.

  1. Attend a Music Concert
  2. Take a Tour of Buckingham Palace
  3. Attend the Notting Hill Carnival
  4. Take a Cruise along the Thames
  5. Watch a Football Match
  6. Attend a West End Musical
  7. Discover the Food of London
  8. Witness the Changing of the Horse Guards
  9. Enjoy a late-night session at The Tate Modern
  10. Walk in the Footsteps of Britain’s Kings and Queens on our Royal Westminster Tour

If you are coming at the start or end of the month, you may want to read our posts on London weather in July and September.

About The Author

Fred Pickhardt

Fred is a marine meteorologist and sailed briefly with American Export Lines in the Far East trade. He has extensive experience in weather analysis, weather forecasting, and forensic weather event reconstructions. Fred founded Ocean Weather Services and currently provides forensic marine weather reports to the maritime industry.
Updated: June 12th, 2023
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