Can you swim at Shelly Beach Manly in September? — 17.0°C water
Yes, but expect a fresh dip
Average sea · September
17.0°C
Live water now
…
Recommended wetsuit
3/2mm fullsuit
mild
It depends. Shelly Beach Manly sits around 17.0°C in September; confident swimmers will be fine, casual bathers may prefer short sessions.
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 September?
Shelly Beach Manly averages 17.0°C in September, based on long-run climatology for the Tasman Sea.
Is the sea warm enough to swim at Shelly Beach Manly in September?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Shelly Beach Manly in September?
A 2 mm shorty is comfortable for sessions over 30 minutes.
