Overview
- Spain is in its first major 2026 heat wave, with AEMET stations reporting many readings above 40°C and authorities issuing multiple heat alerts on Wednesday, June 24.
- Regional impacts in Spain include unusually warm nights, shortened school hours and earlier closures or schedule changes at major tourist sites to reduce health risks.
- Nuevo León and southern Jalisco face same-day warnings for extreme daytime heat of 35–40°C and strong gusts up to 50–70 km/h, with civil-protection agencies urging hydration, care for children and older adults, and awareness of evacuation routes.
- Local forecasts in Galicia show humid afternoons near 32°C followed by a high probability of evening storms, illustrating how heat can combine with humidity to create unstable conditions.
- The International Research Institute for Climate and Society says a consolidated moderate El Niño raises the probability of a warmer-than-normal July–August–September in Catamarca and northwest Argentina while precipitation signals remain weak.