July is a popular month to ask about Plage de la Dune du Sud because conditions can shift week to week along this coast. Expect the water near 16.0°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 Gulf of St Lawrence.
Plage de la Dune du Sud sea temperature in July — averages 16.0°C
The sea at Plage de la Dune du Sud in Canada averages 16.0°C during July, based on long-run climatology for the Gulf of St Lawrence. 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
16.0°C
mild · Fair
Live water now
…
July
Recommended wetsuit
3/2mm fullsuit
At 16.0°C a 3/2mm fullsuit is the standard wetsuit for surfing and watersports.
Monthly comparison
Yes, but expect a fresh dip · Plage de la Dune du Sud
Can you swim at Plage de la Dune du Sud in July? — 16.0°C water16.0°CCan you swim at Plage de la Dune du Sud in August? — 17.0°C water17.0°CCan you swim at Plage de la Dune du Sud in September? — 15.0°C water15.0°CCan you swim at Plage de la Dune du Sud in October? — 11.0°C water11.0°CCan you swim at Plage de la Dune du Sud in November? — 8.0°C water8.0°CCan you swim at Plage de la Dune du Sud in December? — 5.0°C water5.0°C
Frequently asked questions
What is the average sea temperature at Plage de la Dune du Sud in July?
Plage de la Dune du Sud averages 16.0°C in July, based on long-run climatology for the Gulf of St Lawrence.
Is the sea warm enough to swim at Plage de la Dune du Sud in July?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Plage de la Dune du Sud in July?
A 2 mm shorty is comfortable for sessions over 30 minutes.