Can you swim at Port Willunga in January? — 20.0°C water
Yes — comfortable for most swimmers
Average sea · January
20.0°C
Live water now
…
Recommended wetsuit
Shorty 2mm
warm
Yes. With a 20.0°C average in January, most swimmers find Port Willunga 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 Port Willunga live page for full conditions.
Frequently asked questions
What is the average sea temperature at Port Willunga in January?
Port Willunga averages 20.0°C in January, based on long-run climatology for the Southern Ocean.
Is the sea warm enough to swim at Port Willunga in January?
Yes, most swimmers find 20.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Port Willunga in January?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.
