UK Records Hottest Day of 2026 as Temperatures Set to Rise Further Over Bank Holiday
UK Hottest Day of 2026 with More Heat to Come

The United Kingdom is experiencing its hottest day of the year so far, with temperatures expected to continue climbing over the bank holiday weekend. The Met Office confirmed that temperatures reached 26.9 degrees Celsius in Heathrow, west London, early on Friday afternoon.

Record-Breaking Forecast

The UK is forecast to see its hottest May day on record on Monday, with temperatures predicted to reach 33 degrees Celsius in southern England and the Midlands. The current May temperature record stands at 32.8 degrees Celsius.

Health Alerts Issued

The UK Health Security Agency (UKHSA) issued an amber heat health alert on Friday morning for the East Midlands, West Midlands, the east of England, London, and the South East. These alerts are in effect from 2pm on Friday until 5pm next Wednesday, replacing less severe yellow alerts that were previously in place.

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According to the UKHSA website, the amber alert means there is likely to be a rise in deaths, particularly among those aged 65 and over or with health conditions, and increased demand on all health and social care services. New yellow alerts have been issued for the north-east and north-west of England, Yorkshire and Humber, and the South West, indicating possible significant impacts on health and social care services.

Dr Anya Gopfert, consultant in health protection at UKHSA, stated: “We know that even moderate heat can lead to serious health problems, especially for older people and those with certain health conditions, so it’s important that everyone takes simple precautions while enjoying the warm weather over the coming days. If you have friends, family or neighbours who are more vulnerable, it is important to check in on them and ensure they are aware of the forecasts and are following the necessary advice.”

Temperature Outlook

Highs of 28 degrees Celsius are expected in parts of south-east England on Friday before temperatures climb above 30 degrees Celsius across swathes of England and Wales over the following days.

Advice for Staying Safe

People have been advised to keep their homes cool by closing windows and curtains in rooms that face the sun, and to cover up with suitable clothing, such as a hat and sunglasses, when going outside. They should also seek shade and apply sunscreen regularly, and are advised to stay out of the sun between 11am and 3pm. Physical activities, such as exercising or walking a dog, should be done in the morning or evening when temperatures are cooler, according to UKHSA.

People have also been advised to look out for signs of heat exhaustion and heatstroke. Symptoms of heat exhaustion include tiredness, feeling faint, intense thirst, heavy sweating, and feeling or being sick. Signs of heatstroke include confusion, lack of coordination, a fast heartbeat, hot skin that is not sweating, and seizures. Heatstroke is a medical emergency, and people are advised to call 999 if they believe someone is experiencing it.

Pet Safety

Vets have also warned pet owners to watch their animals for signs of overheating and ensure they stay hydrated by leaving plenty of water out. A spokesperson for veterinary care provider Medivet & Partners said: “With the Met Office forecasting temperatures of above 25 degrees this weekend, the UK is bracing for an intense heatwave that will put both people and pets to the test. As pets are unable to communicate when they are overheating, or struggling with dehydration, they are at risk of suffering in extreme conditions more than most.”

Pets suffering from heatstroke may display symptoms such as excessive panting or thirst, very red gums, lethargy, and vomiting or diarrhoea. Pet owners should react by soaking their pet with cool water, or non-toxic fluids such as cold fizzy drinks if water is not available, then contact their vet for advice.

Dog owners have also been advised to restrict their walking routine to cooler times of the day. Dr Rhian Littlehales, clinical governance director at Medivet & Partners, said: “On extremely hot days, dogs will benefit from skipping a walk completely, as evenings and early mornings are still hot enough to trigger heatstroke. If you’re not sure if the pavements are too hot, place the back of your hand on the ground for seven seconds. If you struggle to hold it down, it’s too hot to walk your dog.”

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