It means the sky-high temperatures have killed more than one person per day over the past week.
A 66-year-old man died from heatstroke on Thursday in Extremadura.
A 75-year-old woman passed away two days later after also succumbing to heat stroke.
A 40-year-old German man who was on the Camino de Santiago pilgrimage also died from heat stroke in Extremadura, as did an 81-year-old man.
It comes as temperatures in southern Spain have reached just over 46C.
Meanwhile in Catalunya, three homeless men have died.
Two other men in Murcia – a roadworker in his 40s and a 78-year-old pensioner – also died from heatstroke last week