Update 23 July: At last the alert for heatwave is deactivated. Temperatures for today are expected to be up to a maximin of 27º. What a relief!
Original post 14 July: Aemet has issued a yellow alert for temperatures up to 34º in Tenerife tomorrow Sunday and up to 36º on Monday. On both days the alert is from 11am to 6pm. The Monday alert is at orange level in Gran Canaria for temperatures up to 38º.