Can you swim at Ong Lang 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. Ong Lang 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 Ong Lang Beach live page for full conditions.
Best months to swim
June · July · August · September
Frequently asked questions
What is the average sea temperature at Ong Lang Beach in September?
Ong Lang 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 Ong Lang Beach in September?
Yes, most swimmers find 24.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Ong Lang Beach in September?
