The national weather agency AEMET has upgraded the yellow weather alert for Alicante and Valencia provinces to orange.
Many of Spain’s popular tourist destinations could receive torrential rain and thunderstorms late Saturday night and throughout Sunday.
The new warnings come just days after the historic town of Rhonda was submerged by over a metre of water forcing residents to stay in their homes.
The streets looked like rivers as tables and chairs just washed away following an estimated 45 litres of rain per square metre failing in less than an hour.
Rhonda mayor Teresa Valdenebro Ríos let the Met office have it with both barrels after not issuing a warning for the town until after the event.