Can you swim at Lamai Beach in September? — 24.0°C water

Yes — ideal swimming weather
Average sea · September
24.0°C
Live water now
Recommended wetsuit
No wetsuit
hot

Yes. Lamai Beach averages 24.0°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 Lamai Beach live page for full conditions.

Best months to swim
June · July · August · September

Frequently asked questions

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

Lamai Beach averages 24.0°C in September, based on long-run climatology for the Gulf of Thailand.

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

Yes, most swimmers find 24.0°C comfortable for unrestricted swimming.

Do I need a wetsuit at Lamai Beach in September?

No wetsuit needed.