Met Office data show the UK’s summer 2026 was the hottest since national records began in 1884. June–August average temperatures exceeded the 2025 record after persistent spring–summer heat and five widespread heatwaves; days at or above 30°C totaled 40 (1995: 34), and days ≥35°C reached 10, double the previous record.

2026-09-01

Met Office data show the UK’s summer 2026 was the hottest since national records began in 1884. June–August average temperatures exceeded the 2025 record after persistent spring–summer heat and five widespread heatwaves; days at or above 30°C totaled 40 (1995: 34), and days ≥35°C reached 10, double the previous record.