London weather in April
April in London: cool, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in London · #284 of 604 destinations to visit in April · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
London climate normals — April
| Daytime high | 13°C / 56°F | 🙂 cool |
|---|---|---|
| Nighttime low | 4°C / 40°F | |
| Feels like (high) | 10°C / 50°F | |
| Rainfall | 37 mm / 1.4 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 5°C / 41°F | |
| Sunshine | 10 h/day | |
| Daylight | 13.9 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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London in April — FAQ
- Is April a good time to visit London?
- April in London: cool, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for London on SeasonMap's comfort score (80/100).
- What is the weather like in London in April?
- In April, London averages a daily high of 13.4°C and a low of 4.4°C, with about 36.8 mm of rain over roughly 8.8 rainy days.
- What is the air quality in London in April?
- London has a mean US Air Quality Index of about 40 in April.