Mud rain alert: DANA rain system to bring heavy downpours and Saharan dust to Spain this week

After a delightful Easter weekend with temperatures reaching 30ºC in parts, big weather changes approach Spain for the beginning of the week as a polar trough develops into a powerful rain storm, otherwise know in Spain as a “DANA” low-pressure system. Residents along the Costa del Sol, Costa Tropical and Mallorca need to watch for contrasting conditions with heavy rain in western regions mixing with a “calima” dust storm affecting their local areas.

Western Spain braced for torrential rain

Models indicate the DANA will form midweek and position itself initially near Portugal before shifting towards the Gulf of Cadiz and Canary Islands. Heavy showers and thunderstorms will sweep across western Andalucia, Extremadura and parts of Castilla y Leon. Accumulations could reach 50mm in 24 hours around Cadiz and Sevilla provinces, with 40mm possible in central Extremadura. Some parts are likely to see up to 40mm of rainfall.

High temperatures and calima dominate Mediterranean coast

Eastern and southern Spain including Costa Blanca, Murcia, Almeria, Granada areas and Mallorca will stay largely dry. Subtropical high pressure will drive very warm conditions together with an intrusion of Saharan dust. Skies may appear hazy with reduced visibility as dust particles linger in the atmosphere. Temperatures will climb well above seasonal averages across these popular regions.

Risk of muddy showers as Saharan dust meets rain

Uncertain positioning of the DANA leaves open the possibility of some showers reaching Mediterranean communities if easterly winds establish. Calima dust suspended in the air could then mix with any precipitation to create Spain’s rare, but famous, mud rain, leaving vehicles and outdoor surfaces coated in reddish-brown residue. Meteorologists are monitoring the situation closely for any shifts that might bring isolated showers to the east.

🪣🟤 ¡Calima va!
La posición de la dana que estima el modelo europeo será idónea para bombear polvo del sahariano hacia la península.
🗞️ https://t.co/HuJaYujLsw pic.twitter.com/p6Gii8JENL

— Meteored España (@MeteoredES) April 5, 2026

What residents should prepare for

Local forecasts suggest the unsettled pattern will continue into Friday with most significant rain confined to more western areas. Anyone travelling westward from Malaga or Alicante should check updates for road conditions. Coastal areas in the east will enjoy warmer days but may need to limit time outdoors during peak calima intensity to avoid respiratory irritation. And don’t leave your washing out if it clouds over!