May · United Kingdom
Best time to visit London in May Weather, crowds & prices
Weather in London in May
Average temperature 13°C, 55 mm of rain, about 21 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
8.5/10
Ranked #4 of 12 months
- Avg temp
- 13°C
- Rainfall
- 55 mm
- Humidity
- 81%
- Days with 6h+ sun
- 21
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in London scores 8.5/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 13°C, 55 mm of rain, and roughly 21 days with 6+ hours of sunshine this month.
A historic capital of theatres, museums, and rain-kissed culture, where mild summers invite leisurely strolls through its storied streets.
May ranks 4th of 12 for London — one of the best windows
May averages 13°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 55 mm, so plan one flexible day in three; you still get about 21 days with 6+ hours of sunshine and 15.4 hours of daylight.
A 8.5/10 puts this among the year's best months in London (4th of 12); only June scores higher, at 9.4/10.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in London in May?
- In May, London averages 13°C, 55 mm of rain, and about 21 days with 6+ hours of sunshine. Its climate-comfort score is 8.5/10.
- Is May a good time to visit London?
- May earns a 8.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in London in May?
- Expect about 55 mm of rain in May. Average humidity is 81% and there are about 21 days with 6+ hours of sunshine.
Curated in London
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