London weather in August
August in London: nice, a little rain, with clean air — one of the best months to visit.
#2 of 12 months in London · #77 of 604 destinations to visit in August · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
London climate normals — August
| Daytime high | 22°C / 72°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 58°F | |
| Feels like (high) | 21°C / 70°F | |
| Rainfall | 55 mm / 2.2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 14.5 h | |
| Wind | 19 km/h / 11 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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London in August — FAQ
- Is August a good time to visit London?
- August in London: nice, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for London on SeasonMap's comfort score (90/100).
- What is the weather like in London in August?
- In August, London averages a daily high of 22.2°C and a low of 14.3°C, with about 54.7 mm of rain over roughly 9.2 rainy days.
- What is the air quality in London in August?
- London has a mean US Air Quality Index of about 41 in August.