Can you swim at Shelly Beach Manly in December? — 22.0°C water
Yes — comfortable for most swimmers
Average sea · December
22.0°C
Live water now
…
Recommended wetsuit
Rash vest or swimsuit
warm
Yes. With a 22.0°C average in December, most swimmers find Shelly Beach Manly 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 Shelly Beach Manly live page for full conditions.
Best months to swim
January · February · March · December
Frequently asked questions
What is the average sea temperature at Shelly Beach Manly in December?
Shelly Beach Manly averages 22.0°C in December, based on long-run climatology for the Tasman Sea.
Is the sea warm enough to swim at Shelly Beach Manly in December?
Yes, most swimmers find 22.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at Shelly Beach Manly in December?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.
