Cool. 15.0°C in January means short dips for most people. A 2 mm shorty or 3/2 mm wetsuit transforms the experience.
Monthly averages set expectations, but the specific beach today depends on wind, swell and recent weather. Check the live value at the top of this page or open the Yyteri live page for full conditions.
Best months to swim
June · July · August · September
Frequently asked questions
What is the average sea temperature at Yyteri in January?
Yyteri averages 15.0°C in January, based on long-run climatology for the Baltic Sea.
Is the sea warm enough to swim at Yyteri in January?
Not without thermal protection — a wetsuit is recommended at 15.0°C.
