July is a popular month to ask about Mordialloc Beach because conditions can shift week to week along this coast. Expect the water near 12.0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Bass Strait.
Mordialloc Beach sea temperature in July — averages 12.0°C
The sea at Mordialloc Beach in Australia averages 12.0°C during July, based on long-run climatology for the Bass Strait. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · July
12.0°C
cool · Fair
Live water now
…
Recommended wetsuit
5/4mm fullsuit + boots & gloves
At 12.0°C you need a 5/4mm fullsuit with boots, gloves and ideally a hood.
Monthly comparison
Cool — short dips or a shorty wetsuit · Mordialloc Beach
Can you swim at Mordialloc Beach in June? — 13.0°C water13.0°CCan you swim at Mordialloc Beach in July? — 12.0°C water12.0°CCan you swim at Mordialloc Beach in August? — 12.0°C water12.0°CCan you swim at Mordialloc Beach in September? — 13.0°C water13.0°CCan you swim at Mordialloc Beach in October? — 14.0°C water14.0°CCan you swim at Mordialloc Beach in November? — 16.0°C water16.0°C
Frequently asked questions
What is the average sea temperature at Mordialloc Beach in July?
Mordialloc Beach averages 12.0°C in July, based on long-run climatology for the Bass Strait.
Is the sea warm enough to swim at Mordialloc Beach in July?
Not without thermal protection — a wetsuit is recommended at 12.0°C.
Do I need a wetsuit at Mordialloc Beach in July?
A 3/2 mm wetsuit makes longer swims comfortable.