Britons are set to experience a late-September heat surge as low pressure brings a short period of warmer weather on Tuesday. Temperatures across much of the country could reach 27C tomorrow, "which is notably warm for the time of year," the Met Office said in a new weather forecast.
Warm day and night in the south
The southern and eastern areas of England are also likely to remain warm in the evening and at night, with minimum temperatures potentially reaching 19C. However, Tuesday is forecast to start with widespread cloud and drizzle in the south, but temperatures will then rise substantially as sunshine develops during the afternoon.
In contrast, a clear and rather chilly morning in the north will give way to increasing cloud, the Met Office said.
Chief Forecaster explains the cause
Chief Forecaster Matthew Lehnert said: "A deep area of low pressure far into the Atlantic is the primary driver behind the UK’s weather over the next few days."
"Its first influence will help pull some warmer air over much of the country on Tuesday, with a peak of 27C likely, which is notably warm for the time of year."
"A warm night will follow across southern and eastern areas, with minimum temperatures of 19C in places."
Wet and windy change ahead
The north of the UK is likely to be warmer than usual, but in Scotland and Northern Ireland, temperatures are unlikely to exceed 20C, according to the latest weather maps. While some areas in the south could still be warm in the evening, much of the country by then will be turning increasingly wet and windy, as a weather front gradually moves from west to east by late Tuesday and through Wednesday, the Met Office added.
Many places could see 10mm of rain, with in excess of 40mm also possible, especially on the hills in the western area of the country. Strong winds are possible too, with the forecaster predicting gusts over 50mph.
Met Office Deputy Chief Forecaster Steven Keates said: "As this weather front moves gradually from west to east late on Tuesday and Wednesday, many places will see around 10mm of rain, with in excess of 40mm possible in some isolated spots in south-facing hills in the west."
"This period of weather will also see gusty winds, with gusts over 50mph possible, particularly on exposed coasts in the northwest. Large waves are likely to affect some coasts in the west, coinciding with high spring tides."
