June in London averages a daily high of 24.6°C with nights around 13.2°C. Expect roughly 10.6 wet days totalling 85.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit London is May–September.
Based on LONDON CS, ON CA (8.7km), 1995–2024. 20 years of June data.