Not sure where to swim?
Describe your ideal water — warm, calm, close by — and get matching beaches and lakes.
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Live sea temperature map
Advanced sea condition metrics
Hourly water and air temperatures from the Open-Meteo Marine network.
A 0-100 swim rating combining water temp, waves and wind for at-a-glance decisions.
Water, air, waves, wind and UV outlook for the week ahead.
Swimming & travel guides
The best time to swim in the Mediterranean
Month-by-month guide to sea temperature across the Med, from Spain to Cyprus.
What sea temperature is safe to swim in?
How cold is too cold, what cold shock is, and the practical rules for beach swimmers.
Swimming with kids: the best European beaches
Sheltered bays, shallow water, easy parking — the family-friendly shortlist.
How sea-surface temperature data actually works
Satellites, buoys, and the model blends behind every number on SwimTemperature.
What sea temperature is good for snorkelling?
Reef life, water clarity and the comfort sweet spot for masked, finned visitors.
The best time to swim in Spain
Mediterranean, Atlantic and Canary Island water temperatures through the year.