It depends. Cadzand sits around 19.0°C in August; 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 Cadzand live page for full conditions.
Frequently asked questions
What is the average sea temperature at Cadzand in August?
Cadzand averages 19.0°C in August, based on long-run climatology for the North Sea.
Is the sea warm enough to swim at Cadzand in August?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Cadzand in August?
A 2 mm shorty is comfortable for sessions over 30 minutes.