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How is the Weather in London in May

Updated: January 16, 2024

This post is a summary of the London weather in May, with tips on what to pack and things to do. 

Is London Warm in May?

May continues to warm nicely in London so it is a great month to visit this historic and fascinating city.

The average high temperatures during the day are around 15 C - 16 C (near 60 F) early in the month but will warm into the 18 C - 19 C (mid-60s F) by the end of May.

A few of the warmer days can reach or exceed 24 C (75 F).

What is the Average Temperature in London in May

Early morning low temperatures start out around 7-8 C (mid-40s F) warming to the low 10 -11 C (50 F) by month’s end.

A few of the colder mornings early in the month can dip down to 3 C (upper 30s F) or below.

Daylight hours continue to increase this month from just under 15 hours early in May to over 16 hours by the 31st. This should give visitors ample time to explore the city.


About 14-15 days this month will have sunny or at least partly sunny skies.

About 15 days this month could see some rain, however, only 6-8 days will be considered “rainy days” when at least 1 mm/0.04 inches of rain falls. 

How much does it rain in London in May

Wind speeds during May tend to be light to moderate and mostly will range between 3-14 mph (5-23 kph) and rarely exceeds 20 mph (32 kph).


May is mild but changeable so it is best to dress in layers.

Bring at least a light to moderate-weight jacket or coat for the cooler mornings and evenings, otherwise, springtime attire will be best for most days.

What to Wear in London in May

A pair or two of good walking shoes and some rain gear are also a must so you can enjoy all of our walking tours!


There are lots of great things to do this May. Below the video, we list the highlights.

Read our full post on things to do in May in London as well as 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 as you could save up to 55% of retail ticket prices to tours, attractions, and restaurants.

Highlights of things to do this May in London:

  • Go to the All Points East Music Festival in Victoria Park
  • Catch a glimpse of the Queen on the State Opening of Parliament Day
  • See the Canalway Cavalcade boat parade
  • Visit the Free 'Chelsea in Bloom'  Flower Show
  • Enjoy a show in London’s West End
  • Watch a football (soccer) match
  • See an Open-Air Theatrical Performance
  • Take the kids to the May Fayre & Puppet Festival
  • and so much more!

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: January 16th, 2024
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