UK July Heatwave Forecast 2026: Peak Temperatures by Region and When It Hits
Another heatwave is building across the UK in early July 2026 as high pressure takes hold — but the good news is it won’t be as extreme as June’s record-breaking heat. The hottest conditions are forecast for southern and eastern England, where temperatures could climb into the low-to-mid 30s Celsius and peak early-to-mid next week, while the north and west stay noticeably cooler and cloudier. Here’s the forecast peak temperature by region and the likely timing. Forecasts change quickly, so always check the Met Office for the latest.
Is there a UK heatwave in July 2026?
Yes — after a more changeable spell, high pressure known as the Azores High is building from the south and is set to dominate the UK’s weather through the first full week of July. According to the Met Office, temperatures will rise steadily day by day, and heatwave thresholds are likely to be met in at least some southern and eastern parts of the country. The important caveat is that this hot spell is not expected to match the intensity of the late-June heatwave, which pushed temperatures close to 38°C and brought oppressive humidity. This time the hot air is coming from a different direction, with westerly winds keeping both temperatures and humidity lower — so while it’ll be hot in the south, the UK’s all-time record of 40.3°C is in no danger. Expect a classic north–south split: hot and dry in the south and east, cooler and cloudier in the north and west.
What are the peak temperatures by region?
The heat will be very unevenly spread across the UK, with the south-east baking while northern and western areas stay comparatively mild. Here’s the approximate forecast peak by region.
| Region | Forecast peak |
|---|---|
| South-east England (London) | Low-to-mid 30s°C (around 31–33°C at peak) |
| Southern & central England | High 20s to low 30s°C |
| East Anglia | High 20s to low 30s°C |
| Wales & the Midlands | Mid-to-high 20s°C |
| Northern England | High teens to mid 20s°C |
| Scotland & Northern Ireland | High teens to low 20s°C (cloud & rain in the west) |
As the board shows, the London area and the south-east are set to be the hottest, potentially reaching the low 30s at the very peak, while the further north and west you go, the cooler it gets — with parts of Scotland and Northern Ireland barely feeling the heat at all, and western Scotland actually seeing some persistent rain.
When will the UK heatwave peak?
The heat builds gradually rather than arriving all at once. Temperatures climb steadily through the first full week of July as high pressure strengthens, with the peak expected early-to-mid next week — roughly around 7–9 July — across southern and eastern England. There is some uncertainty about how long the hottest conditions will last: some forecasts suggest high pressure could hang on into the following week, while others hint at more changeable, showery weather returning from the north-west later on. As always with heat forecasts several days out, the exact peak day and temperature will become clearer closer to the time.
Why won’t it be as hot as June?
It comes down to where the air is coming from. June’s exceptional heat, which set a new provisional June record of 37.7°C, was driven by very hot, humid air drawn up from continental Europe, combined with high pressure sitting in just the right place — a recipe that also produced sweltering “tropical nights” where temperatures never dropped below 20°C. This July spell is different: the high pressure is positioned further west, so the UK is drawing in cooler, less humid air on westerly winds. The result is temperatures a few degrees lower than June’s extremes and, crucially, much lower humidity — which will make it feel far more bearable, especially overnight. It’ll still be a proper heatwave for the south, just not a record-threatening one.
How to stay safe and cool in the heat
While many people enjoy the hot weather, heat can be genuinely dangerous, so it’s worth taking a few simple precautions. Drink plenty of water, try to stay out of direct sun during the hottest part of the day (roughly 11am to 3pm), wear light clothing and sunscreen, and never leave people or pets in parked cars. Keep an eye on elderly neighbours, young children and anyone with health conditions, who are most at risk. To keep your home cooler, close curtains and blinds on sun-facing windows during the day, open windows overnight when the air is cooler, and use fans to keep air moving. If you’re thinking about upgrading your setup for the summer, see our guides to the best cheap air conditioners in the UK and the best tower fans. If you or someone else shows signs of heat exhaustion or heatstroke, seek medical advice.
The bottom line
The UK’s early-July 2026 heatwave will bring low-to-mid 30s to the south-east and southern England, high 20s across the Midlands and Wales, and much cooler, cloudier conditions to the north and west — peaking around the 7th to 9th of July before potentially breaking down. It’s a hot one for the south, but with lower humidity and no threat to the all-time record, it should feel more comfortable than June’s brutal spell. Stay hydrated, keep cool, and check the Met Office for the latest updates as the forecast firms up.
This article summarizes the UK weather forecast as of early July 2026; forecasts are subject to change, and you should always check the Met Office for the most up-to-date information and any official heat-health alerts. This is general information, not medical advice.