Can you swim at Karathona Beach in September? — 25.0°C water
Yes — ideal swimming weather
Average sea · September
25.0°C
Live water now
…
Recommended wetsuit
No wetsuit
hot
Yes. Karathona Beach averages 25.0°C in September — bath-warm by European standards and comfortable for all-day swimming, snorkelling and families.
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 Karathona Beach live page for full conditions.
Best months to swim
June · July · August · September · October
Frequently asked questions
What is the average sea temperature at Karathona Beach in September?
Karathona Beach averages 25.0°C in September, based on long-run climatology for the Ionian Sea.
Is the sea warm enough to swim at Karathona Beach in September?
Yes, most swimmers find 25.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Karathona Beach in September?