Hottest May Day on Record in UK as Temperatures Surpass 34C

Hottest May day on record in UK – The United Kingdom has shattered its May temperature record this week, with London registering 34.8°C on Monday. This provisional figure, measured at Kew Gardens, also eclipsed the previous benchmark for the warmest bank holiday Monday, which stood at 33.3°C during the August bank holiday in 2019. Wales, too, saw its own May temperature milestone, with Hawarden Airport in Flintshire recording 32.2°C—the highest such reading in the region’s history.

“This heat would be exceptional in the UK even in mid-summer, let alone in May,” the Met Office remarked.

Across the country, the mercury is projected to climb further in the coming days, particularly in the South and Southeast of England. Forecasters anticipate potential temperatures of 35°C on Monday and Tuesday, raising concerns about the intensity of the heatwave. Meanwhile, the UK’s warmest May night was documented on Sunday, with London experiencing a high of 19.4°C. This week’s meteorological events have already set seven out of the 12 monthly record highs since 2003, as per the Met Office’s latest analysis.

The current extreme weather is driven by a high-pressure system lingering near the UK, which has trapped warmth and created prolonged heat conditions. Dan Suri, the Met Office’s chief operational meteorologist, explained that this phenomenon has led to “exceptionally high temperatures” that are reshaping the country’s weather patterns. The average temperature for the end of May typically hovers between 14°C and 20°C, making this anomaly particularly striking.

As the heatwave intensifies, the UK Health Security Agency has issued its first amber-heat alert of 2026, covering vast regions including the West Midlands, East Midlands, East of England, South East, and London. A yellow alert has been extended to the North East, North West, South West, Yorkshire and Humber. Both alerts remain in effect until 17:00 BST on Wednesday, urging residents to take precautions against the rising temperatures.

Scotland and Northern Ireland have also recorded their highest temperatures of the year so far, with Charterhall hitting 25.5°C and Hillsborough reaching 24.6°C. The unprecedented warmth has caused logistical challenges, such as the disruption of water supply to approximately 500 properties in Sussex and Kent. South East Water apologized for the inconvenience, stating it is resolving the issues “as quickly and safely as possible.”

Extreme heat has prompted the cancellation of several bank holiday events across the UK. In Surrey, the Leatherhead Lions Club decided to exclude donkeys and a dog show from its annual donkey derby, citing the need to protect the welfare of animals. Despite these cancellations, thousands of spectators braved the scorching conditions to witness the Gloucestershire cheese-rolling race, where German YouTuber Tom Kopke, known online as Tooleko, defeated local champion Chris Anderson in the first race of the year on Cooper’s Hill in Brockworth.

Looking ahead, England is expected to face thunderstorms on Tuesday evening, as the heatwave continues. Temperatures are forecast to remain above 30°C in England and Wales throughout Wednesday and Thursday, with a slight drop to the high 20s by Friday. The heatwave has already triggered “heatwave conditions” in eight areas, including Heathrow, Benson, Brooms Barn, High Beech, and Santon Downham.

“Drivers should never leave children, vulnerable passengers or pets inside a parked vehicle, even for a short time,” the AA advised, warning that vehicle interiors could reach 60°C under the sun.

Age UK has recommended limiting exposure during peak heat hours, advising people to stay indoors between 11:00 and 15:00 and take regular cold showers to combat the effects of the extreme weather. These recommendations highlight the growing awareness of how heatwaves impact vulnerable populations.

Climate change is increasingly being linked to such unprecedented weather events. According to the Met Office’s State of the UK Climate report, the number of days with temperatures exceeding 28°C has more than doubled, while days above 30°C have surged by over threefold in the most recent decade compared to the 1961-1990 average. This trend underscores the long-term implications of rising global temperatures on regional weather extremes.

The UK is not alone in experiencing this historic heatwave. Across Europe, several countries have broken May temperature records in recent days. Spain, for instance, recorded 38°C on Sunday, while parts of France, Germany, and Switzerland saw temperatures climb into the mid-30s. Hundreds of towns and cities in these nations have set new records for the month, with the heatwave likely to persist for most of the week. Northern Italy has also been affected, with temperatures 10 to 15°C above the late May average.

These extreme conditions are prompting widespread adaptation efforts. Local authorities and organizations are implementing measures to ensure public safety, from adjusting event schedules to increasing emergency services on standby. The record-breaking temperatures have also sparked discussions about the resilience of infrastructure and the need for proactive climate strategies. As the week unfolds, the focus remains on mitigating the impact of the heatwave while monitoring its progression.

The Met Office has highlighted the role of atmospheric patterns in intensifying the current heatwave. High-pressure systems, which typically bring stable weather, have been particularly persistent, leading to prolonged periods of unseasonably warm temperatures. This