London in Summer — Weather & What to Expect
Summer in London (June, July, August) averages daytime highs of 22.3°C and lows of 13.3°C, with around 183.4mm of rain across the season (31 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in London covers June, July, August.
Summer in London month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 21.5°C | 11.9°C | 70.3mm | 11 | 10/10 |
| July | 22.6°C | 13.9°C | 59.5mm | 12 | 10/10 |
| August | 22.7°C | 14.2°C | 53.6mm | 8 | 10/10 |
What to pack for London in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
- A warm layer for cool evenings
Frequently Asked Questions
Is summer a good time to visit London?
Summer in London rates around 10/10 — excellent time to visit. Average highs are 22.3°C with 183.4mm of rain across the season.
How hot is London in summer?
Daytime highs average 22.3°C (72.1°F) across June, July, August, with nights around 13.3°C.
What months are summer in London?
London is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit London · London annual climate · London in spring · London in autumn · London in winter
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Once you know what summer in London looks like, find out exactly what to pack for London at 247PackingList. For currency, language and country facts, see the United Kingdom guide at 247CountryInfo.
Summer in London — what to pack
Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →Check clothing sizes in United Kingdom at 247Sizing before you shop.
More summer travel essentials
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.