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    Breaking 2025 record - Summer of 2026: hottest on record

12:38
1 September 2026

Breaking 2025 record
Summer of 2026: hottest on record

Temperature map of London showing 38.1°C at Kew Gardens, with surrounding readings of 35–36°C and deep red shading indicating extreme heat.
The hottest temperature of the year topped out at just over 38°C in August.

Data released by the Met Office has confirmed that this year's summer was provisionally the hottest on record after a spree of heatwaves.

Despite a cooler end to the season, a 40-day spell of temperatures above 30°C and five distinct heatwaves propelled this summer to the top, beating the summer of 2025.

With a high of 38.1°C marking the hottest day of the summer, and the fifth highest temperature ever, recorded at Kew Gardens on August 13th, the overall mean temperature across summer sat at 16.5°C.

July temperature anomaly map of Europe showing warmer-than-average temperatures in red across the UK, Ireland, and western Europe, with cooler anomalies further east.
July rainfall anomaly map of Europe showing widespread rainfall deficits across the UK, Ireland, and western Europe, with wetter anomalies in parts of northeastern Europe.
August rainfall anomaly map of Europe showing drier-than-average conditions in yellow and wetter areas in blue, including parts of the UK and central Europe.
Aerial view of a large park with dry yellow-brown grass, intersecting footpaths, and a few people walking across the parched landscape beneath clear summer skies.
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July's temperatures were widely above the norm.

Despite the fact that both June and July became the second-hottest of each month, and a cooler end to August, the overall consistency of hot weather has seen the seasonal record broken.

YearMean temperature
202616.5°C
202516.1°C
201815.7°C
200615.7°C
200315.7°C

It wasn't just the hottest, but the sunniest on record since reliable records have been kept from 1884, resulting in very little rainfall which led to drought declarations and widespread water use restrictions.

Despite the drought, late rain and thunderstorms in August prevented any national records from being broken. Though England did see the driest July on record, and third driest for the UK as a whole.

As 2026 enters the history books, the infamous heatwave of 1976 falls lower in the list of hottest summers, now seventh overall.

Ryan Hathaway
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