ClimavisoHeat across much of Spain, 28 July – 3 August 2026
28 July 2026 to 3 August 2026. Updated 26 October 2026.
Over 7 days, 71 of Spain's 182 warning zones had an orange or red warning for heat: 158 zone-days at orange or red, 2 of them red. The day with the most zones at orange or red was 29 July, with 37 zones.
29 July was the day with the most people in zones under an orange or red warning: 13.9 million people live there (INE municipal register, 2025).
How it compares
- It is number 18 of 119 episodes since June 2018 by zone-days at orange or red.
- Among the 37 heat episodes, it is number 16.
Day by day
| Day | Red | Orange | Yellow | Orange or red warnings for |
|---|---|---|---|---|
| Tue 28 July | — | 22 | 86 | heat |
| Wed 29 July | — | 37 | 62 | heat |
| Thu 30 July | — | 33 | 64 | heat |
| Fri 31 July | — | 25 | 65 | heat |
| Sat 1 August | — | 23 | 73 | heat, storms |
| Sun 2 August | — | 7 | 55 | heat |
| Mon 3 August | 2 | 9 | 27 | storms, heat, rain |
Zones with a warning each day, at their highest level that day.
The zones
And 88 more zones with yellow warnings only.
What AEMET's stations measured
The most measured in the zones with an orange or red warning, on their warning days: a high of 44.4 °C at La Aldea de San Nicolás, Tasarte (Este, sur y oeste de Gran Canaria) on 2 August.
| Zone | Highest temperature |
|---|---|
| Este, sur y oeste de Gran Canaria | 44.4 °C La Aldea de San Nicolás, Tasarte · 2 August |
| Campiña cordobesa | 43.2 °C Montoro · 1 August |
| Campiña sevillana | 42.8 °C Sevilla Aeropuerto · 1 August |
| Cuenca del Genil | 42.7 °C Granada Aeropuerto · 1 August |
| Interior sur de Valencia | 42.6 °C Jalance · 31 July |
| Antequera | 42.5 °C Antequera Ayuntamiento (automática Thies) · 1 August |
| Cazorla y Segura | 42.4 °C Arroyo del Ojanco · 30 July |
| Centro de Navarra | 42.4 °C Cáseda · 30 July |
| Sol y Guadalhorce | 42.4 °C Coín · 2 August |
| Morena y Condado | 42.2 °C Andújar · 1 August |
| Ribera del Ebro de Zaragoza | 42.2 °C Quinto · 30 July |
| Sierra sur de Sevilla | 42.1 °C La Roda de Andalucía · 1 August |
| Alcaraz y Segura | 42.0 °C Yeste, Embalse Fuensanta · 1 August |
| Norte de Burgos | 42.0 °C Miranda de Ebro · 29 July |
| Sierras de Alcudia y Madrona | 41.9 °C Almadén · 28 July |
| Campiña gaditana | 41.8 °C Jerez de la Frontera Aeropuerto · 31 July |
| Ibérica zaragozana | 41.8 °C La Almunia de Doña Godina · 30 July |
| Sierra y Pedroches | 41.5 °C Espiel · 31 July |
| Valle del Guadalquivir de Jaén | 41.5 °C Baeza · 30 July |
| Valle del Tajo | 41.5 °C Toledo · 29 July |
And 51 more zones with an orange or red warning.
For each zone, the highest value its AEMET stations measured on the episode's warning days (the lowest, for the low temperature), with the station and the day. Rain from 07:00 to 07:00 UTC; gust: the day's strongest. It is what the zone's stations measured, not every town, and a measurement, like a warning, is not damage.
How AEMET's warnings unfolded
The red warning reached 2 zone-days, and AEMET always issued it ahead of time (median: 24 h). The first warning of any level for those same days had come a median 36 h earlier.
| Zone | Day | First warning | Red issued | For · notice |
|---|---|---|---|---|
| Cumbres de Gran Canaria | Mon 3 | Fri 31 Jul, 23:50 orange | Sun 2 Aug, 11:32 | 12:00 · 24 h before |
| Este, sur y oeste de Gran Canaria | Mon 3 | Fri 31 Jul, 23:50 orange | Sun 2 Aug, 11:32 | 12:00 · 24 h before |
The full timeline: 168 changes at orange or red
Only the changes involving red are listed: there were 168 in all.
Sun 2 August
- Cumbres de Gran Canaria, Este, sur y oeste de Gran Canaria: Raises the heat warning to red: Monday 3, 12:00–21:00. Highs of 40 °C.
AEMET's issue times, in mainland Spain time (Canary Islands in island time). Notice is the time from issue to the first hour the warning covered; a warning issued “for the current hour” runs from the hour it is published.
What this says and what it doesn't
A warning is an AEMET forecast, not a measurement or a damage report: it says a threshold is expected to be exceeded in a zone. A warning is not damage; a zone is not a building.
A zone-day is one warning zone with a warning on one day. Ten zones at orange on the same day make ten zone-days. A day with several warnings in one zone counts once, at its highest level.
Each zone has its own thresholds, so an orange heat warning in Asturias doesn't mean the same temperature as in Córdoba. More in how warnings work.
To cite: “Climaviso, from AEMET warnings”.
Source: official AEMET warnings, collected by Climaviso since June 2018.
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