UK weather maps indicate that a new heatwave could be imminent, with temperatures potentially reaching 32C across a three-day period. According to the GFS weather model, temperatures are expected to rise from June 17, bringing pleasant highs of 28C to the south-east, 27C in East Anglia, 26C in the north-west and Midlands, and 24C in North Wales. Scotland and Northern Ireland are forecast to be slightly cooler.
Rising Temperatures Across the UK
On June 18, maps show temperatures could hit 30C in the south-east, with 29C possible as far north as Yorkshire. Parts of Northern Ireland may reach 26C, and Wales will see mid-to-high 20s. The warmest conditions are expected on June 19, with highs of 30C or more across large areas of England, and even 27C in parts of southern Scotland. The south-east is predicted to be the hottest region, with 32C possible.
Counties Facing 31C or More
Data shows 13 counties could see highs of 31C or more on June 19, all in England: Yorkshire, Lancashire, Cheshire, Nottinghamshire, Warwickshire, Cambridgeshire, Bedfordshire, Hertfordshire, Essex, Buckinghamshire, Berkshire, Surrey, and Kent.
Official Heatwave Criteria
If these forecasts materialise, parts of the UK could experience an official heatwave, defined as temperatures exceeding the local heatwave threshold for three consecutive days. The threshold varies from 25C to 28C across counties, with 28C in the south-east and 25C in other regions. The GFS model shows peaks of 28C, 30C, and 32C from June 17 to 19 in the same areas, meeting the criteria.
Met Office Long-Range Forecast
The Met Office forecast for June 18 to July 2 indicates a relatively settled start with high pressure bringing drier conditions and above-normal temperatures. However, towards the end of June, low pressure may increase, bringing heavy showers and thunderstorms, particularly in the south, which could also become hot.
