Weather in London in May 2025
Average weather
Average temperature in London in May
Going from a maximum of +72°F during the day to a minimum of +43°F during the night, the temperature in May averages around +64°F.
The average maximum temperature goes up 6% by the end of the month, compared with the beginning of the month, from +64°F to +66°F.
Is London warm or cold in May?
London is typically mild in May.
Maximum temperatures go up compared to the previous month from +57°F to +63°F. The minimum temperature also goes up from +43°F to +48°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in London:
Travel to London
Climate in London in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +57°F | +63°F | +68°F | ||||
| Min. temperature | ||||||
| +27°F | +32°F | +37°F | ||||
| Max. temperature | ||||||
| +82°F | +90°F | +91°F | ||||
| Rainfall | ||||||
| 48 mm | 55 mm | 58 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 69% | 69% | 68% | ||||
| Air pressure | ||||||
| 1014 HPa | 1015 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 5 | 5 | 4 | ||||
| Cloudy days | ||||||
| 9 | 9 | 9 | ||||
| Rainy days | ||||||
| 15 | 16 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +57°F to +63°F during the day. Prepare for more rain. Average rainfall goes from 48 mm to 55 mm. Humidity levels don’t change as the month goes on, averaging around 69%. The average wind speed doesn’t change much during May, staying around 3 m/s. The amount of sunny days stay about the same, averaging 5 sunny days during the month.
June brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in London is gradually increasing during May, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in London?
Climate Change Over the Years
The climate in London in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+54°F) and the highest in 2022 (+62°F). The driest year was 1996 with only 431 mm of rainfall, and the wettest year was 2021 with 1037 mm.
FAQ
Is May a good time to visit London?
Can you sunbathe in London in May?
Is London rainy in May?
Is it sunny in London in May?
How much does it cost to fly to London in May?
Other cities in United Kingdom
Monthly weather in London
Source of the data
For this page, we’ve looked at the typical weather in London, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.