Can you swim at Lido Key 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. Lido Key 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 Lido Key live page for full conditions.
Best months to swim
April · May · June · July · August · September · October · November
Frequently asked questions
What is the average sea temperature at Lido Key in September?
Lido Key averages 29.0°C in September, based on long-run climatology for the Gulf of Mexico.
Is the sea warm enough to swim at Lido Key in September?
Yes, most swimmers find 29.0°C comfortable for unrestricted swimming.
