Can you swim at Flagler Beach in September? — 29.0°C water

Yes — ideal swimming weather
Average sea · September
29.0°C
Live water now
Recommended wetsuit
No wetsuit
tropical

Yes. Flagler Beach averages 29.0°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 Flagler Beach live page for full conditions.

Best months to swim
January · February · March · April · May · June · July · August · September · October · November · December

Frequently asked questions

What is the average sea temperature at Flagler Beach in September?

Flagler Beach averages 29.0°C in September, based on long-run climatology for the Atlantic Ocean.

Is the sea warm enough to swim at Flagler Beach in September?

Yes, most swimmers find 29.0°C comfortable for unrestricted swimming.

Do I need a wetsuit at Flagler Beach in September?

No wetsuit needed.