It depends. Marielyst sits around 17.0°C in July; confident swimmers will be fine, casual bathers may prefer short sessions.
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 Marielyst live page for full conditions.
Frequently asked questions
What is the average sea temperature at Marielyst in July?
Marielyst averages 17.0°C in July, based on long-run climatology for the Baltic Sea.
Is the sea warm enough to swim at Marielyst in July?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Marielyst in July?
A 2 mm shorty is comfortable for sessions over 30 minutes.
