Can you swim at Sumner Beach in December? — 14.0°C water
Cool — short dips or a shorty wetsuit
Average sea · December
14.0°C
Live water now
…
Recommended wetsuit
4/3mm fullsuit
cool
Cool. 14.0°C in December means short dips for most people. A 2 mm shorty or 3/2 mm wetsuit transforms the experience.
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 Sumner Beach live page for full conditions.
Frequently asked questions
What is the average sea temperature at Sumner Beach in December?
Sumner Beach averages 14.0°C in December, based on long-run climatology for the Tasman Sea.
Is the sea warm enough to swim at Sumner Beach in December?
Not without thermal protection — a wetsuit is recommended at 14.0°C.
