ClimavisoJuly 2024 heatwave: heat across much of Spain, 28 July – 2 August 2024
28 July 2024 to 2 August 2024. Updated 26 October 2026.
AEMET records a heatwave from 23 July to 1 August 2024.
Over 6 days, 81 of Spain's 182 warning zones had an orange or red warning for heat: 175 zone-days at orange or red, 4 of them red. The day with the most zones at orange or red was 31 July, with 45 zones.
30 July was the day with the most people in zones under an orange or red warning: 16.9 million people live there (INE municipal register, 2025).
How it compares
- It is number 17 of 119 episodes since June 2018 by zone-days at orange or red.
- Among the 37 heat episodes, it is number 15.
- There hadn't been a heat episode this widespread since August 2023.
Day by day
| Day | Red | Orange | Yellow | Orange or red warnings for |
|---|---|---|---|---|
| Sun 28 July | — | 22 | 64 | heat |
| Mon 29 July | — | 25 | 81 | heat, storms |
| Tue 30 July | — | 37 | 75 | heat |
| Wed 31 July | 3 | 42 | 56 | heat |
| Thu 1 August | 1 | 34 | 58 | heat |
| Fri 2 August | — | 11 | 35 | storms, heat, rain |
Zones with a warning each day, at their highest level that day.
The zones
And 77 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 45.2 °C at Andújar (Morena y Condado) on 29 July.
| Zone | Highest temperature |
|---|---|
| Morena y Condado | 45.2 °C Andújar · 29 July |
| Sol y Guadalhorce | 44.3 °C Álora · 1 August |
| Valle del Guadalentín, Lorca y Águilas | 44.2 °C Alhama de Murcia · 1 August |
| Interior sur de Valencia | 43.6 °C Jalance · 1 August |
| Litoral sur de Valencia | 43.3 °C Carcaixent · 31 July |
| Cuenca del Genil | 43.2 °C Granada Base Aérea · 31 July |
| Bajo Aragón de Teruel | 42.9 °C Hijar · 31 July |
| Campiña cordobesa | 42.9 °C Montoro · 29 July |
| Cazorla y Segura | 42.9 °C Villanueva del Arzobispo · 29 July |
| Alcaraz y Segura | 42.8 °C Yeste, Embalse Fuensanta · 1 August |
| Axarquía | 42.8 °C Vélez-Málaga · 2 August |
| Guadix y Baza | 42.7 °C Baza · 31 July |
| Hellín y Almansa | 42.5 °C Almansa · 1 August |
| Norte y nordeste de Mallorca | 42.5 °C La Puebla (sa Canova) · 30 July |
| Altiplano de Murcia | 42.4 °C Jumilla · 31 July |
| Ribera del Ebro de Zaragoza | 42.4 °C Quinto · 31 July |
| Valle del Almanzora y Los Vélez | 42.4 °C Albox · 1 August |
| Vega del Segura | 42.2 °C Archena · 31 July |
| Pirineo de Lleida | 42.1 °C Llimiana · 30 July |
| Ampurdán | 42.0 °C Figueres · 31 July |
And 61 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 4 zone-days. AEMET issued it ahead of time in 3 of them (median: 38 h) and for the current hour in the other 1: warnings are also raised as things unfold. The first warning of any level for those same days had come a median 29 h earlier.
| Zone | Day | First warning | Red issued | For · notice |
|---|---|---|---|---|
| Ampurdán | Wed 31 | Sun 28 Jul, 23:50 orange | Mon 29 Jul, 23:22 | 13:00 · 38 h before |
| Ribera del Ebro de Zaragoza | Wed 31 | Sun 28 Jul, 23:50 orange | Mon 29 Jul, 23:22 | 13:00 · 38 h before |
| Hellín y Almansa | Wed 31 | Sun 28 Jul, 23:50 orange | Tue 30 Jul, 09:44 | 13:00 · 27 h before |
| Hellín y Almansa | Thu 1 | Mon 29 Jul, 23:50 orange | 15:23 | 15:00 · for the current hour |
The full timeline: 196 changes at orange or red
Only the changes involving red are listed: there were 196 in all.
Mon 29 July
- Ampurdán: Raises the heat warning to red: Wednesday 31, 13:00–21:00. Highs of 40 °C.
- Ribera del Ebro de Zaragoza: Raises the heat warning to red: Wednesday 31, 13:00–21:00. Highs of 42 °C.
Tue 30 July
- Hellín y Almansa: Raises the heat warning to red: Wednesday 31, 13:00–21:00. Highs of 42 °C.
- Ampurdán: Brings the red heat warning forward: now from 11:00 on Wednesday 31. Highs of 40 °C.
Thu 1 August
- Hellín y Almansa: Raises the heat warning to red: Thursday 1, 16:00–21:00. Highs of 42 °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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