Can you swim at Sumner Beach in August? — 9.0°C water
Cold — wetsuit recommended
Average sea · August
9.0°C
Live water now
…
Recommended wetsuit
5/4mm fullsuit + boots & gloves
cold
Cold. 9.0°C in August is cold-water swimming territory — a 4/3 mm full wetsuit, neoprene cap and short, repeated sessions are the safe approach.
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 August?
Sumner Beach averages 9.0°C in August, based on long-run climatology for the Tasman Sea.
Is the sea warm enough to swim at Sumner Beach in August?
Not without thermal protection — a wetsuit is recommended at 9.0°C.
Do I need a wetsuit at Sumner Beach in August?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.
