Spain and Portugal Hit 46°C in the Record-Breaking 2025 European Heatwave
The same extreme-heat days that broke June records also delivered punishing midday UV — here's why shade, clothing, and reapplied SPF matter most in a spike like this.
On 28 June 2025 Spain reached a national June record of 46.0°C at El Granado, and Portugal recorded 46.6°C at Mora on 29 June; France issued red alerts for 16 departments and part of the Eiffel Tower was closed.
Climate and health authorities note that the high-pressure systems driving record heat also produce clear skies and elevated midday UV, so extreme-heat advisories double as strong cues to seek shade and cover up.
Questions we get a lot
Does extreme heat mean the UV index is also extreme?
Heat and UV are different things, but they often peak together. The clear-sky, high-pressure conditions behind record heatwaves like late-June 2025 also let strong midday UV reach the ground. So while a thermometer doesn't measure UV, an intense heatwave is a reliable signal to check the UV index and protect your skin.
What sun protection matters most during a record heatwave?
During spikes like the late-June 2025 European heatwave, the priority is staying out of direct midday sun, using shade and protective clothing, and reapplying a broad-spectrum sunscreen every two hours when outdoors. Hydration and avoiding peak hours protect against heat illness at the same time. The exact SPF number matters less than applying enough and reapplying.
r/europe: "It hit 46°C near me during the heatwave — does that mean the UV was off the charts too, or are heat and sunburn risk separate?"