Yes. Sanya Bay averages 25.0°C in July — 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 Sanya Bay live page for full conditions.
Best months to swim
June · July · August · September
Frequently asked questions
What is the average sea temperature at Sanya Bay in July?
Sanya Bay averages 25.0°C in July, based on long-run climatology for the South China Sea.
Is the sea warm enough to swim at Sanya Bay in July?
Yes, most swimmers find 25.0°C comfortable for unrestricted swimming.
