The United Kingdom recorded its hottest day of 2026 as the temperature reached 38.1 degrees Celsius in west London. The reading exceeded the previous annual high set on June 28 by one-tenth of a degree, although it remained below the national August record of 38.5 degrees established in 2003.
Britain and France are experiencing their fifth heatwave of the year after the first arrived in May. The UK has now registered a record four days at or above 36 degrees and matched 2022 with two days reaching 38 degrees. Parts of France approached 41 degrees from Aquitaine to the Rhone valley.
The heat struck societies with limited cooling capacity. Air conditioning remains uncommon outside shops and offices in both countries. Britain's Royal College of Nursing said staff had collapsed from heat exhaustion in hospitals, many of them older buildings without adequate cooling, and called the conditions evidence of institutional failure.
Persistent drought has shrivelled crops, lowered rivers and increased pressure on water for households, farms and ecosystems. Southern Water sought a rare drought order to prohibit non-essential business use in southern England, including car washing and filling commercial pools. If approved, it would be the first such restriction since 2006.
Dry vegetation intensified the fire threat. New grass fires broke out in the English West Midlands, where homes burned near a Stourbridge golf course, while crews continued fighting a blaze in the New Forest. England and Wales have recorded 1,017 wildfires this year, equalling the record total for all of 2025.
French firefighters confronted new fires in Pas-de-Calais and Brittany after an exceptional summer. A major blaze near Bordeaux the previous month had forced a quarter of a million people from their homes. Fire crews were also threatening industrial action to demand more personnel and resources for increasingly severe weather emergencies.
The emergency extended south and east. More than 300 tourists and residents were evacuated by sea from northern Greece after a pine-forest fire threatened coastal homes near Siviri on the Halkidiki peninsula. Nine firefighting aircraft, seven helicopters and 250 firefighters were deployed, with no initial reports of casualties or major property loss.
Forecasts indicated that the most intense heat would shift eastward and ease during the weekend, but the episode exposed a longer-term adaptation gap. Water systems, hospitals, fire services and public behaviour were all under pressure, and British authorities were considering restrictions on disposable barbecues as Europe adjusted to a climate in which extreme heat and fire seasons are becoming recurrent.
