Second London heatwave end date: July 12, with 9 days of highs above 28C

London's second heatwave will last nine days from July 4 to July 12, with highs above 28C, according to BBC Weather. Temperatures will peak at 32C on July 9.

Capital Post 01/07/2026 05:41

Second London heatwave end date: July 12, with 9 days of highs above 28C — Second London heatwave to end July 12 after 9 days

London is set to experience a second heatwave starting Saturday, July 4, which will last for nine days until Sunday, July 12, according to BBC Weather. The heatwave is defined as three or more consecutive days with temperatures reaching or exceeding 28C.

Heatwave Duration and Peak Temperatures

The heatwave will see highs at or above 28C from July 4 through July 12. The hottest day is expected to be Thursday, July 9, with a high of 32C. However, July 11 and 12 will bring some rain and cloud cover, offering slight relief.

Daily Temperature Forecast

BBC Weather provided a detailed forecast for London: Wednesday, July 1: 25C high, 15C low; Thursday, July 2: 25C, 12C; Friday, July 3: 26C, 15C; Saturday, July 4: 28C, 16C; Sunday, July 5: 29C, 17C; Monday, July 6: 30C, 18C; Tuesday, July 7: 30C, 19C; Wednesday, July 8: 31C, 19C; Thursday, July 9: 32C, 19C; Friday, July 10: 30C, 20C; Saturday, July 11: light rain, 29C, 19C; Sunday, July 12: light cloud, 28C, 18C; Monday, July 13: 26C, 17C; Tuesday, July 14: 27C, 18C.

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Comparison to Mid-June Heatwave

This second heatwave follows a record-breaking heatwave in mid-June. Unlike that event, this one is expected to be more moderate, with temperatures peaking at 32C compared to higher records in June.