The UK is preparing for its third official heatwave of 2026, with temperatures expected to climb as high as 35°C. Health officials urge people to stay safe as hot weather continues across England and Wales.

---

UK Braces for Third Heatwave of 2026 as Temperatures Set to Reach 35°C

The United Kingdom is preparing for another spell of extreme summer weather, with forecasters predicting temperatures could reach 35°C in parts of England later this week. If forecasts remain accurate, this will mark the country’s third official heatwave of 2026, continuing what has already been an unusually hot summer.

Weather experts say a large area of high pressure is settling over much of the UK, bringing clear skies, prolonged sunshine and very little rainfall. Southern and central England are expected to experience the highest temperatures, while Wales and parts of eastern England are also forecast to see above-average conditions.

The prolonged period of hot weather has prompted health officials to remind the public to take extra precautions, particularly older adults, young children and those with existing medical conditions.

Health Officials Issue Safety Advice

As temperatures continue to rise, authorities are encouraging people to remain hydrated, avoid direct sunlight during the hottest part of the day and wear lightweight clothing where possible.

Experts recommend staying indoors between 11am and 3pm, when UV levels are at their highest. Those who must work outdoors are advised to take regular breaks in the shade and drink water frequently to reduce the risk of heat exhaustion.

Parents are also being reminded never to leave children or pets inside parked vehicles, where temperatures can become dangerously high within minutes.

Travel Could Be Affected

The hot weather may also affect parts of the UK’s transport network.

High temperatures can place additional pressure on railway infrastructure, with some train operators introducing temporary speed restrictions to reduce the risk of rails expanding. Motorists are also being advised to check tyre pressure and coolant levels before making long journeys.

Airports are expected to remain busy as many families begin travelling for summer holidays.

Dry Conditions Raise Fire Risk

The combination of high temperatures and limited rainfall has increased concerns over grass and countryside fires across several regions.

Fire services are asking members of the public to avoid lighting disposable barbecues in parks, woodlands or open countryside. Even small sparks can quickly spread across dry vegetation during prolonged hot weather.

People are also encouraged to dispose of cigarettes responsibly and report any signs of fire immediately.

How Long Will the Heat Last?

Current forecasts suggest the hot conditions could continue for several days before cooler Atlantic air gradually moves across parts of the country during the weekend.

While temperatures are expected to fall slightly afterwards, forecasters say many areas will likely remain warmer than average for this time of year.

Meteorologists continue to monitor weather models closely, as small changes in wind direction could affect exactly how high temperatures climb.

Simple Tips to Stay Safe During a Heatwave

• Drink plenty of water throughout the day.
• Avoid strenuous exercise during peak afternoon temperatures.
• Keep curtains or blinds closed during the hottest hours.
• Wear light-coloured, loose-fitting clothing.
• Apply sunscreen regularly when outdoors.
• Check on elderly relatives, neighbours and vulnerable people.
• Never leave children or animals inside parked vehicles.

Looking Ahead

With another period of intense summer heat arriving, millions across the UK are expected to enjoy sunshine, but experts continue to stress the importance of staying safe.

Whether spending time outdoors, travelling or simply relaxing at home, taking sensible precautions can help reduce the health risks associated with extreme temperatures.

As the summer continues, forecasters will be watching closely to see whether the UK experiences yet another record-breaking spell of hot weather.

---

UK heatwave 2026, UK weather, England weather, 35°C forec