Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Media Grid UK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Temperatures are forecast to reach 30–33°C across parts of southern and eastern England by midweek, likely meeting the Met Office’s heatwave criteria for several areas. This means you should prepare for hot days and warm nights, particularly if you are vulnerable to heat.
How long is the UK heatwave going to last?
The current hot spell is expected to peak on Wednesday and Thursday, with a gradual return to nearer-average temperatures from Friday. The Met Office suggests a 60% chance of the heatwave lasting four to five days in southeast England, but conditions will likely ease by the weekend as cooler Atlantic air moves in.
Heatwave UK map and regional breakdown
The live ranking above shows the hottest spots. The highest temperatures are expected in London, Essex, Kent and Cambridgeshire, where the heatwave uk map from the Met Office indicates a 70–80% probability of exceeding heatwave thresholds. Northern England, Scotland and Northern Ireland will see lower 20s, with no heatwave expected there.
What should you do during the heatwave?
Stay indoors between 11am and 3pm when UV is strongest, keep hydrated, and check on elderly neighbours. The next heatwave UK event for 2025 may follow a similar pattern, though a uk heatwave 2026 forecast is not yet available. For reference, the heatwave uk 2022 record of 40.3°C remains an extreme outlier.
Is this a heatwave UK today?
Yes, for parts of southern England. The Met Office defines a heatwave when a location records at least three consecutive days meeting or exceeding a threshold (25°C in most of England). Check our 10-day forecast for your area.
What is the heatwave UK September risk?
A heatwave uk september is less common but possible, with about one such event every 3–5 years. September 2023 saw a brief heatwave in the south-east. The current August event is more typical for summer.
Will there be a heatwave UK 2025 like 2022?
Climate projections suggest heatwave uk 2025 events are more likely than in the past, but matching the extreme heatwave uk 2022 figures is unlikely without specific weather patterns. Follow winter warnings for contrast.