Health chiefs in the Canaries have issued an urgent alert as the temperature across the islands is set to soar into the mid-30s and more.
They are urging holidaymakers to take extra special care in the sun and not to risk heatstroke or severe sunburn.
The Ministry of Health of the Government of the Canary Islands has activated health risk notices between July 9 and 11 in different municipalities of Gran Canaria, Tenerife, Fuerteventura, Lanzarote, and La Palma .