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London weather in May

London in May averages 14°C (56°F), 46 mm of rain and 6.3 hours of sun a day.

Of the twelve months in London, May is the fifth warmest and the third sunniest.

London
Average temp
14°C (56°F)

9–18°C · 48–65°F

Rainfall
46 mm

Not much rain

Sunshine
6.3 h

hours per day

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What is London like in May?

Daytime

Days are mild.

Rain

Rain is usually light.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for London in May?

  • A warm mid-layer

    Nights drop to around 9°C (48°F).

May compared with April and June

May in London is 3.2°C warmer than April and about as wet as it, which averages 10°C (51°F).

May in London is 3.2°C cooler than June and about as wet as it, which averages 17°C (62°F).

Daylight in London in May

On 15 May the sun is up for 15 hours 39 minutes in London, rising about 05:08 and setting about 20:46 local time.

May ends 1 hour 25 minutes longer than it begins, so the last week of the month is a different length of day from the first.

That is 58 minutes short of June, the longest-lit month here.

Where to stay in London

Dates are a starting point for May.

All hotels in London

London weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 2 Sept 2026358 places covered

How May compares with the rest of the year

May is highlighted. Every other month links to its own page.

London weather by month: average temperature, rainfall, sunshine for each month, from 1991–2020 climate normals
MonthAverageRainfall
January6°C / 42°F59 mm
February6°C / 43°F45 mm
March8°C / 46°F38 mm
April10°C / 51°F43 mm
May14°C / 56°F46 mm
June17°C / 62°F47 mm
July19°C / 66°F46 mm
August19°C / 65°F53 mm
September16°C / 60°F51 mm
October12°C / 54°F64 mm
November8°C / 47°F67 mm
December6°C / 43°F57 mm

Similar weather in May

Other destinations whose May averages sit close to this one.

Check another month

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FAQs about London in May

May climate averages for London, 1991–2020.

London averages 14°C (56°F) in May, ranging from about 9°C (48°F) at night to 18°C (65°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Barely. May sees only about 46 mm, so rain is unlikely to affect your plans.

No. May averages 14°C (56°F) against 17°C (62°F) in June — 3.2°C cooler.

May is 3.2°C warmer than April, and about as wet.

Yes. May falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.

About 6.3 hours of sun a day on the 1991–2020 average.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 15 hours 39 minutes of daylight in mid-May, against 16 hours 37 minutes in June and 7 hours 52 minutes in December.

On 15 May, sunrise is about 05:08 and sunset about 20:46 local time. Both shift across the month — the month ends 1 hour 25 minutes longer than it starts.