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Swarms of sex-mad jellyfish heading to UK beaches in sweltering October heat

The scorching temperatures of autumn are attracting large numbers of jellyfish seeking to mate to our shorelines.

The nation is enjoying warmer weather than during our washout summer as the seasons turn upside down. Forecasters predict temperatures of 24C today.

And experts say our waters are becoming hotter than Brazil and Mauritius – bringing with it millions of crystal jellyfish. They grow up to a foot wide, have up to 150 tentacles and are usually found some 2,000 miles away in the Mediterranean., but their sting is not painful.

READ MORE: UK faces ’25C or higher’ heat spike this week as September could be ‘hottest in history’

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A single Crystal Jelly (Aequorea victoria) with its delicate structure illuminated in clear blue water.
It comes as the UK is set to see the ‘hottest September’ in history (stock)

Swimmers in Devon and Cornwall have been left stunned by the arrival of thousands of them this week. The Marine Biological Association, based in Plymouth, said: “The Crystal jellyfish is a rare sight in the UK and up until now rarely recorded in our #Data, but washed up along the #Cornwall coast in huge numbers over the weekend.”

Matt Slater, from Cornwall Wildlife Trust, said: “They reproduce very rapidly and produce thousands of tiny larvae.” Britain is set to bask in warm weather all month, as a double subtropical swelter is set to bring highs of 25 degrees next Friday.



A Crystal Jellyfish swims gracefully in its natural environment on the south coast of Cornwall. This Jellyfish is also called Aequorea Victoria. The photograph was taken underneath the Jelly fish, with the sun backlighting the subject.
Temperatures could be above 25C (stock)

A freak sunburn warning has even been issued – just as shops sell Halloween decorations. The Met Office forecast moderate UV levels and warned: “Take care during midday hours and do not spend too much time in the sun unprotected. Sunscreen is advised.”

Met4Cast said: “Remarkable early October heat is shown on computer forecast models. It’s impressive.”

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