Question: is 23 degrees sea temperature warm?
Answer: The ideal temperature for swimming at sea is 84 degrees 66°F to 70°F (19°C to 22°C): You swim on the west coast. ... 71°F to 77°F (23°C to 26°C): You bathe in the Mediterranean Sea and it's already better, but it still lacks a few degrees to enter the water without making grimaces.