Can you swim at Mordialloc Beach in December? — 18.0°C water
Yes, but expect a fresh dip
Average sea · December
18.0°C
Live water now
…
Recommended wetsuit
3/2mm fullsuit
mild
It depends. Mordialloc Beach sits around 18.0°C in December; 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 Mordialloc Beach live page for full conditions.
Frequently asked questions
What is the average sea temperature at Mordialloc Beach in December?
Mordialloc Beach averages 18.0°C in December, based on long-run climatology for the Bass Strait.
Is the sea warm enough to swim at Mordialloc Beach in December?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Mordialloc Beach in December?
A 2 mm shorty is comfortable for sessions over 30 minutes.
