DiverMar tells you in real time whether it's a good moment to swim, snorkel or go out on a kayak or paddle board on any of the 3476 beaches and coves of the Spanish coast: official lifeguard flag, waves, wind, water temperature, UV index, visibility, jellyfish and an hourly forecast until sunset.
From official open sources: Open-Meteo's marine and weather models (waves, wind, water temperature, UV) and the Open Data portal of the Government of Catalonia (lifeguard flag, sea state, water transparency and jellyfish).
Marine and weather data refresh every few minutes. The official flag, sea state and jellyfish sightings are published daily by each beach's lifeguard service during the season.
Over 3,400 beaches and coves along the entire Spanish coast: the peninsula, the Balearic and Canary Islands, Ceuta and Melilla — from the Costa Brava to the Rías Baixas and from the Costa del Sol to the islands. Lifeguarded beaches in Catalonia and Bizkaia show the official flag; everywhere else the verdict relies on marine-weather data. Pick a beach with the search box or by GPS proximity — each beach has its own page with today's conditions.