The weather maps are turning red as the first heatwave of 2025 is sweeping across the UK this week, with London expected to face some of the highest temperatures in the country. After a warm and cloudy start, forecasters predict the capital will experience highs of up to 32°C by Saturday, marking what could be the hottest day of the year so far. The heat is being driven by a plume of warm air from continental Europe, which is set to linger well into next week.
The Met Office has issued yellow-level heat-health alerts for large parts of England, including London and the South East. The alerts, which remain in force through Monday, warn of heightened health risks for vulnerable groups such as the elderly, young children, and people with underlying medical conditions. The UK Health Security Agency has urged residents to take precautions, noting that the combination of high temperatures and dry conditions could pose serious risks to health and wellbeing.
In the capital, emergency services are also on alert. With one of the driest springs on record behind it, London is particularly susceptible to wildfires and grassfires. The London Fire Brigade has issued advisories, warning residents to avoid barbecues in open spaces and to report any signs of fire immediately.
Public health officials recommend that Londoners stay indoors during the hottest part of the day, particularly between 11am and 3pm, and keep their homes cool by shutting windows in the morning and ventilating in the evening. Pharmacists have also advised simple but effective cooling methods, such as using chilled cloths and storing water in the freezer.
UK heatwave: London braces for soaring temperatures as authorities issue alerts
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