Vattaja: Very Cold sea conditions at 7.4°C. Serious cold. Cold shock risk is high. Experienced swimmers with proper kit only. Essentials: Full wetsuit, Gloves + boots, Neoprene cap. Source: Copernicus Marine (Satellite), updated hourly.
Reading from:
Right Now
7.4°C
Very Cold
Serious cold. Cold shock risk is high. Experienced swimmers with proper kit only.
Data Source
Copernicus Marine (Satellite)
Measured sea surface temperature from the Copernicus Marine Service (MeteoFrance SMOC model). Satellite and in-situ observations at ~8km resolution.
What to bring
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Report temperatureFrequently asked questions
What temperature is safe for wild swimming?
Most swimmers find 15°C+ comfortable. Below 10°C requires careful acclimatisation and you should limit your time in the water. Cold water shock can occur at any temperature below around 15°C, so always enter slowly.
How accurate is the temperature data?
It depends on the water body type. For ocean spots we use satellite sea surface temperature. For rivers and lakes, temperature is estimated from air temperature using published regression models. Accuracy varies by model (typically ±2-3°C). Community reports from swimmers who have been in the water recently are the most accurate local source.
Why might temperature readings differ between sources?
Ocean temperature sources use different satellite instruments and processing methods. Satellite sea-surface temperature, which is what we show at the coast, measures the water directly and is the most reliable source for a coastal spot. Estimates derived from air temperature are not measurements of the water, and we label them as estimates. Where you have local knowledge, or a recent community report, trust that over any model.
