Climaviso

Where in Spain are heat warnings most frequent?

AEMET data up to 26 October 2026. Averages for 2019–2025. Updated 26 October 2026.

Short answer

In the Campiña cordobesa (Córdoba) zone: 51 heat-warning days a year on average from 2019 to 2025, against 16 in an average Spanish zone. 2 of the 180 zones had none.

How it is counted

A warning day is a day on which AEMET had at least one yellow, orange or red warning in the zone; it counts once, at its highest level. Spain has 182 warning zones and every town gets the warnings of its own. Averages use the complete years 2019–2025; provinces and regions are the average of their zones. A warning is a forecast that a threshold will be crossed, not damage, and each zone has its own thresholds: these figures measure how often AEMET warns, not the climate or the risk to a building.

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How to cite

Climaviso (https://climaviso.com/en/questions/where-are-heat-warnings-most-frequent-in-spain/), from AEMET warning data. Authorised use of the information and its reproduction citing AEMET as its author.