AEMET the country's meteorological agency, says a weekend cold drop will cause rainfall and thunderstorms along the southern coast from Monday onwards.
A report blames a jet of cold polar air approaching from the Atlantic which will move downwards through Spain, causing a 'strong destablisation of the atmosphere'.
By Sunday evening it will have covered most of the Iberian peninsula. Showers and thunderstorms from Monday to Wednesday in southern Spain are 'likely' and may be 'very strong', reads the report.
It is not known which parts of the southern coast will be worst hit.
Mmaps posted on AEMET's website suggest that Malaga and the Costa del Sol will experience thunderstorms.
Cold drops are associated with extremely strong winds and intense rainfall.