Popular British tourist hotspot issued red health risk alert for heatwave as temperatures set to exceed 39C

Other islands remain under orange and yellow warnings as the intense heatwave grips the popular tourist destination.

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Spain's meteorological service predicts the extreme conditions will persist until at least Thursday.

Overnight temperatures are predicted not to drop below 25C in many areas, creating dangerous conditions for visitors unaccustomed to such relentless heat.

The mercury soared to 41.2 degrees in La Aldea de San Nicolás on Gran Canaria last Thursday, marking the peak of the current heatwave affecting the islands.

Tenerife recorded its highest reading of 38.9 degrees at Llano de los Loros in La Laguna.

Meteorologists have warned that inland regions and elevated areas face the most severe conditions.

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The weather agency has issued orange warnings across all islands since Saturday, noting the presence of light calima dust alongside the extreme heat.

Forecasters expect Gran Canaria and Tenerife to experience the most intense temperatures, with other islands facing conditions around 36C.

Medical authorities advise visitors to consume water and non-alcoholic beverages frequently whilst avoiding caffeinated drinks, fizzy beverages, energy drinks and alcohol during the heatwave.

The health service recommends remaining indoors between midday and 5pm when temperatures peak, and suggests consuming lighter fare including salads, vegetables and fresh fruit rather than heavy meals.

Officials emphasise the particular danger to vulnerable individuals as both daytime and nighttime temperatures remain dangerously high.

The persistent heat poses significant health risks, with some locations potentially experiencing nighttime temperatures near 30 degrees, preventing the body from recovering during sleep.

Local councils have cancelled numerous outdoor events scheduled for this weekend, with temperatures in Lanzarote prompting the suspension of activities between 11am and 7pm on Saturday and Sunday.

The renowned Haría Craft Market and Teguise Market, both major attractions for British visitors, are amongst the closures affecting tourists' weekend plans.

Haría's mayor, Alfredo Villalba, said: "This situation requires the utmost institutional responsibility. Above all else, the safety of our residents and visitors must come first."

Fuerteventura's Government has enacted its civil protection emergency plan, prohibiting all public gatherings in outdoor spaces or inadequately cooled venues between 9am and 9pm while the alert remains active.

It comes as temperatures in Britain are set to soar in the UK's fourth heatwave of the year.

Meteorologists predict temperatures could reach 33C on Tuesday, with the UK Health Security Agency issuing yellow heat health warnings covering most of England from today through Wednesday in anticipation of the blistering heatwave.