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Jun 23, 2026

The 1 big reason Tuesday’s 40C heatwave will ‘feel worse than UK’s hottest day'

The 1 big reason Tuesday’s 40C heatwave will ‘feel worse than UK’s hottest day ever’

The Met Office warned that this week could break the record for the hottest June temperature of 35.6C, which was set in 1976 in Southampton.

Share Article Facebook X LinkedIn Reddit Bluesky Email Copy Link Link copied Add as a preferred source on Google Add us as preferred source Comments By Laura Zilincanova 13:30, Mon, Jun 22, 2026 Updated: 13:31, Mon, Jun 22, 2026

A man drinking a bottle of water on a hot Summer day.

A man drinking a bottle of water on a hot summer day (Image: Getty)

As Britain braces for temperatures widely exceeding 35C, warnings have been issued to stay out of the sun and avoid exercising between 11am and 3pm. However, even for those following all the guidance to protect themselves from the extreme heat, the coming days might feel worse than the "hottest UK day ever" recorded in July 2022. Back then, while the temperature climbed to 40.3C, the humidity was just 5%. This week, the humidity is likely to be around 20%, making the weather feel far more uncomfortable and remaining at the same level at night. This will make the heatwave "muggier" compared to the one last month, the Met Office reported.

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