July is a popular month to ask about Hamelin Bay because conditions can shift week to week along this coast. Expect the water near 18.0°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 Indian Ocean.
Hamelin Bay sea temperature in July — averages 18.0°C
The sea at Hamelin Bay in Australia averages 18.0°C during July, based on long-run climatology for the Indian Ocean. 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
18.0°C
mild · Good
Live water now
…
Recommended wetsuit
3/2mm fullsuit
At 18.0°C a 3/2mm fullsuit is the standard wetsuit for surfing and watersports.
Monthly comparison
Yes, but expect a fresh dip · Hamelin Bay
Can you swim at Hamelin Bay in June? — 19.0°C water19.0°CCan you swim at Hamelin Bay in July? — 18.0°C water18.0°CCan you swim at Hamelin Bay in August? — 18.0°C water18.0°CCan you swim at Hamelin Bay in September? — 19.0°C water19.0°CCan you swim at Hamelin Bay in October? — 20.0°C water20.0°CCan you swim at Hamelin Bay in November? — 21.0°C water21.0°C
Frequently asked questions
What is the average sea temperature at Hamelin Bay in July?
Hamelin Bay averages 18.0°C in July, based on long-run climatology for the Indian Ocean.
Is the sea warm enough to swim at Hamelin Bay in July?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Hamelin Bay in July?
A 2 mm shorty is comfortable for sessions over 30 minutes.