October is a popular month to ask about Cavendish Beach because conditions can shift week to week along this coast. Expect the water near 11.0°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.
Cavendish Beach sea temperature in October — averages 11.0°C
The sea at Cavendish Beach in Canada averages 11.0°C during October, 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 · October
11.0°C
cool · Poor
Live water now
…
Recommended wetsuit
5/4mm fullsuit + boots & gloves
At 11.0°C you need a 5/4mm fullsuit with boots, gloves and ideally a hood.
Monthly comparison
Cold — wetsuit recommended · Cavendish Beach
Can you swim at Cavendish Beach in July? — 16.0°C water16.0°CCan you swim at Cavendish Beach in August? — 17.0°C water17.0°CCan you swim at Cavendish Beach in September? — 15.0°C water15.0°CCan you swim at Cavendish Beach in October? — 11.0°C water11.0°CCan you swim at Cavendish Beach in November? — 8.0°C water8.0°CCan you swim at Cavendish Beach in December? — 5.0°C water5.0°C
Frequently asked questions
What is the average sea temperature at Cavendish Beach in October?
Cavendish Beach averages 11.0°C in October, based on long-run climatology for the Gulf of St Lawrence.
Is the sea warm enough to swim at Cavendish Beach in October?
Not without thermal protection — a wetsuit is recommended at 11.0°C.
Do I need a wetsuit at Cavendish Beach in October?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.