Britain sees hottest weather in 2026, with temperatures reaching 35C, health alerts and thunderstorm risks / Image: File
Britain is seeing the hottest weather of 2026 so far, with temperatures rising across England as forecasters warn parts of the country could rise to 35C in the coming days.On Monday 25 May, the Met Office confirmed that several areas in southern and eastern England had already entered official heatwave conditions after recording temperatures above regional thresholds for at least three consecutive days. Forecasters said London, Kent, Essex, Cambridgeshire, Suffolk and parts of the Midlands were among the areas experiencing the hottest temperatures.According to the National Meteorological Agency, temperatures exceeded 32 degrees Celsius recently, making it the hottest day recorded in Britain in 2026 so far.
Weather models published by the Met Office have indicated that temperatures in parts of south-east England could rise further and approach 35C later this week if current high pressure systems remain in place.Meteorologists said that the heat wave was caused by a strong area of high pressure extending north from the European continent, pulling exceptionally warm air across the English Channel to Britain. The conditions create weather patterns more associated with southern Europe during mid-summer rather than late May in the UK.
While England and Wales will experience widespread sunshine and dry conditions, Scotland and Northern Ireland are expected to remain relatively cooler, although temperatures there are still expected to remain above seasonal averages.
UK health authorities are issuing alerts across England
The extreme temperatures have sparked warnings from both the Met Office and the UK’s Health Security Agency, which have issued yellow health alerts covering large parts of England.The UK’s Health Security Agency said the hot weather could put additional pressure on hospitals, care homes and emergency services, particularly affecting the elderly, infants, vulnerable residents and individuals with heart or respiratory conditions.
Officials advised people to stay hydrated, avoid direct sunlight during peak afternoon hours, and regularly check on quarantined relatives or neighbors.Forecasters also warned that overnight temperatures could remain unusually high in densely populated urban areas including London, Birmingham and Manchester. Some areas may experience so-called “tropical nights”, where temperatures fail to drop below 20°C after dark, creating uncomfortable sleeping conditions and increasing health risks during prolonged periods of heat.In addition, the Met Office has warned that levels of ultraviolet radiation across southern Britain are now classified as high to very high, increasing the risk of dehydration and sunburn even during relatively short periods outdoors.The heatwave has already caused crowded beaches, crowded public parks and increased demand for fans, air coolers, cold drinks and barbecue supplies in many parts of England.
Risk of thunderstorms after extreme heat
Although the current weather pattern is still dominated by sunshine and dry conditions, meteorologists are now closely monitoring the potential for thunderstorms later this week.The Met Office said high humidity levels coupled with unstable weather conditions could bring heavy rain and thunderstorms to southern and central England after peak hot days.Meteorologists warned that some storms could bring sudden heavy rains, lightning, gusty winds and temporary disruption of rail and road traffic. Areas likely to experience unsettled weather include London, Kent, East Anglia and parts of south-east England, where heat and humidity are expected to rise strongly.Despite the risk of thunderstorms, most parts of England and Wales are expected to remain significantly warmer than average throughout the week. However, northern Scotland may continue to see cloudier conditions as occasional bands of rain move from the Atlantic across western areas.The Met Office’s long-range forecast suggests temperatures could ease slightly towards the end of the week, although southern parts of England are expected to remain unusually warm heading into early June.
Heatwaves in the UK raise concerns
The recent heatwave has once again intensified concerns about climate change and Britain’s increasing vulnerability to extreme weather events.Climate researchers and weather experts have repeatedly warned that unusually hot spring and summer conditions are becoming more frequent across the UK due to long-term global warming trends. The Met Office has previously said that human-induced climate change has made record temperatures in the UK much more likely than in previous decades.Britain recorded its highest temperature on record in July 2022 when thermometers exceeded 40 degrees Celsius for the first time in recorded history, causing widespread travel disruption, school closures and pressure on healthcare infrastructure.The current extreme heat wave in May is already raising new concerns about wildfire risks, water demand and stress on transportation systems if similarly extreme temperatures persist in the summer of 2026.However, for millions across Britain, the immediate reality remains simple: find shade, stay cool and adapt to weather conditions that look increasingly unusual in late spring in the UK.
