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London weather in August

London in August averages 19°C (65°F), 53 mm of rain and 6 hours of sun a day.

Of the twelve months in London, August is the second warmest, the fifth wettest and the fourth sunniest.

London
Average temp
19°C (65°F)

14–23°C · 57–74°F

Rainfall
53 mm

Showers likely

Sunshine
6 h

hours per day

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What is London like in August?

Daytime

Days are mild.

Rain

Some rain is likely; pack for showers.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for London in August?

  • A light rain jacket

    About 53 mm falls this month — showers rather than washouts.

  • A layer for the evening

    Evenings cool off noticeably once the sun is down.

August compared with July and September

August in London is about the same temperature as July and about as wet as it, which averages 19°C (66°F).

August in London is 2.8°C warmer than September and about as wet as it, which averages 16°C (60°F).

Daylight in London in August

On 15 August the sun is up for 14 hours 35 minutes in London, rising about 05:46 and setting about 20:22 local time.

August ends 1 hour 47 minutes shorter than it begins, so the last week of the month is a different length of day from the first.

That is 2 hours 2 minutes short of June, the longest-lit month here.

Where to stay in London

Dates are a starting point for August.

All hotels in London

London weather by month

TemperatureRainfall

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

How August compares with the rest of the year

August 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 August

Other destinations whose August averages sit close to this one.

Check another month

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FAQs about London in August

August climate averages for London, 1991–2020.

London averages 19°C (65°F) in August, ranging from about 14°C (57°F) at night to 23°C (74°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Some. About 53 mm falls across August, enough to need a light jacket but not enough to reshape a trip.

Yes. August averages 19°C (65°F) against 16°C (60°F) in September — 2.8°C warmer.

August is about as warm as July, and about as wet.

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

About 6 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 August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 14 hours 35 minutes of daylight in mid-August, against 16 hours 37 minutes in June and 7 hours 52 minutes in December.

On 15 August, sunrise is about 05:46 and sunset about 20:22 local time. Both shift across the month — the month ends 1 hour 47 minutes shorter than it starts.