Spain remains on alert on 2 October 2026 for very heavy rain and thunderstorms along the Mediterranean coast. The Agencia Estatal de Meteorología (Aemet) confirmed red and orange alerts in the morning for several coastal areas; in the provinces of Tarragona and Castellón the red alert was in force for a time. The Secretaría General de Protección Civil y Emergencias in the Ministerio del Interior also maintained the nationwide alert for the eastern third of the Iberian Peninsula and said the situation would continue until at least Sunday, 4 October 2026.
According to the authorities, overnight and morning showers caused localised flooding, road closures and numerous calls for assistance. Services reported very high rainfall in a short time in some affected areas. Peaks of around 250 litres per square metre were reported in Tarragona and around 170 litres per square metre in Castellón. These figures come from Aemet measurements and reports from regional services; local amounts may vary considerably. In some municipalities, alerts were sent via ES-Alert sent.
The weather is being driven by a moist Mediterranean inflow combined with cooler air at altitude, which triggered pronounced convective activity on 1 and 2 October. Aemet had already issued advance warnings on 1 October and has continued to update the situation in its daily forecasts. In addition to thunderstorms, heavy rain, gusts and small hail are possible, particularly along coastal areas where orographic effects intensify the weather.
The authorities’ immediate priorities are protecting lives, maintaining road safety and securing critical infrastructure. Emergency services report dozens of call-outs for flooded underpasses, inundated basements and fallen trees. Residents in warning areas should avoid underpasses, low-lying areas and riverbanks, adapt journeys to the conditions and follow official guidance.
If the rain continues, medium-term risks include flooding in smaller watercourses, coastal erosion and strain on municipal networks. Depending on soil moisture and drainage, the intense rainfall spells could either benefit or damage farms and businesses. Further developments will depend on the path of the storm cells and how long the moist air flow persists.
The facts presented here are based on publications by Aemet and the Secretaría General de Protección Civil y Emergencias dated 2 October 2026, as well as current reports from Spanish news agencies. Assessments are attributed to the bodies named; forecasts may change at short notice as weather conditions evolve.
Editor: Andreas M. Brucker (Article created with AI assistance).