UV Index Portugal
According to the WHO, the average daily ambient ultraviolet radiation in Portugal is 2,585 J/m² (joules per square metre).
UV radiation overview
Mainland Portugal occupies the western edge of the Iberian Peninsula, stretching from about 37°N at Cape St. Vincent in the Algarve to roughly 42°N on the Minho border with Spain. Sitting on the Atlantic seaboard rather than the Mediterranean, the country still has a Mediterranean Köppen regime (Csa and Csb) and ranks among Europe's sunniest areas, with around 2,300–3,200 hours of sunshine a year. Summer sun angles push the continental average UV index into the 8–9 range from May through August.
A defining feature of Portugal's UV picture is its Atlantic territory far south of the mainland: the Madeira archipelago lies near 32.75°N, about 800 km southwest of continental Portugal and just under 400 km north of the Canary Islands. Funchal records around 2,314 sunshine hours a year and an annual mean UV index near 7.8 in IPMA's 2015–2020 series, peaking at roughly 10–11 from May through August — values closer to the subtropics than to anywhere on the Iberian mainland.
Portugal sits at #147 of 191 in the WHO's global ambient-UV ranking with about 2,585 J/m² of average daily UV, around the 23rd percentile worldwide.
UV Radiation in Portugal
This ranks 147 out of 191 countries measured worldwide — where 1 receives the most UV radiation.
Source: WHO Global Health Observatory (1997–2003)
