Some parts of the UK could be hotter than Ibiza this weekend as forecasters predict temperatures could reach as high as 27C (80.6F).
Southern parts could turn “unseasonably warm” and see the highest temperature for October in the UK since 2018, weather experts say.
The spell of warm weather is likely to peak on Sunday and extend into the beginning of next week.
Forecasters say it is still not clear how far north the warm conditions will spread, but the Met Office expects temperatures to still be well above the seasonal average in the north of England and in Northern Ireland.
The South East is expected to see the highest temperatures of the autumn heat.
Temperatures could match or exceed those of European holiday destinations, such as Athens, Ibiza and Barcelona, forecasters say.
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The average October temperature for the UK is 13C (55.4F), according to the Met Office – while provisional figures show last month was the UK’s joint warmest September on record.
The Met Office said these figures had been “substantially influenced” by the impact of climate change.
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Sky News weather producer Chris England, said: “It will turn unseasonably warm over the weekend, especially in the South, with 27C possible somewhere in the South East on Sunday.
“Southern parts look like keeping temperatures into the mid-20s for the first part of next week, but it’s uncertain how far north the warm conditions could extend or how persistent any warmth there could be.”
Mr England added the conditions could see the highest October temperature since at least 2018, when 26.5C (79.7F) was recorded at Donna Nook on the Lincolnshire coast.
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The record October temperature is 29.9C (85.8F) recorded in Gravesend, Kent, at the beginning of the month in 2011.
Although the temperatures will be above the average for the time of the year, forecasters say it is unlikely the Met Office’s criteria for a heatwave will be met.
The Met Office states an official heatwave is “when a location records a period of at least three consecutive days with daily maximum temperatures meeting or exceeding the heatwave temperature threshold”.
This threshold varies by each UK county.
