The weather in May in London

It's cool to moderate in May in London with an average temperature of 18°C. Temperatures this month range from a low of 15°C to a high of 21°C. At night, you can expect temperatures between 6°C and 11°C.

Looking for great weather? May is a good time to be in London. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for London, England. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 28°C in 2018, London reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 9°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 16°C.

Rainfall amount

In May, there is an average of 46 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.

Daily weather in May for London

Click on any day in May to get detailed info about the usual weather on that day in London. Check out the historical temperatures and precipitation over the past 10 years on this day.

May weather comparison

  London New York
Average temperature 18°C 22°C
Max. temperature 21°C 28°C
Min. temperature 6°C -5°C
Total precipitation 46 mm 105 mm
Rainy days 8 days 14 days

Start of May

The month of May starts in London with cool temps, averaging around 17°C during the day and nights around 8°C.

Mid May

By mid-May, daytime temps rise to around 18°C, with nights around 9°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of May

By the end of May, the average daytime temperature in London is around 20°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to London

UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of London for all months and discover the best travel time

Curious about the weather in other parts of England? Check out the climate and weather for spots like Edinburgh, Cornwall, Devon, or explore other destinations in England.

Temperature charts

These charts show the average temperatures in May in London, England. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in May in London

Temperature in May in London over the years

Precipitation charts

These charts show the average amount of precipitation in May in London, England. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in May in London

Total precipitation in May in London over the years

Daily UV index in May in London

This chart shows the average daily UV index in May in London, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in May in London

The weather in May in London is rated 4 out of 5 stars by 1 visitor. Have you been to London? Share your weather experience to help other visitors.

Write your own review Down
Weather experience:Good StarStarStarStar

Sunny moments alternated with cool days and light rain. Nevertheless, warmth prevailed and the overall atmosphere was surprisingly refreshing.— This text is automatically translated to English

Have you been to London in May?

Share your weather experience in May in London.

Your email will not be shown in the review and will not be shared with others.

Average weather in London by month

Click on a month below to see detailed weather info for London. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.