Can you swim at Onjuku Beach in September? — 22,0°C water
Yes — comfortable for most swimmers
Average sea · September
22,0°C
Live water now
…
Recommended wetsuit
Rash vest or swimsuit
warm
Yes. With a 22,0°C average in September, most swimmers find Onjuku Beach comfortable after the first 10–20 seconds of acclimatisation.
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 Onjuku Beach live page for full conditions.
Best months to swim
July · August · September
Frequently asked questions
What is the average sea temperature at Onjuku Beach in September?
Onjuku Beach averages 22,0°C in September, based on long-run climatology for the Pacific Ocean.
Is the sea warm enough to swim at Onjuku Beach in September?
Yes, most swimmers find 22,0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Onjuku Beach in September?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.
