May is a popular month to ask about Cavendish Beach because conditions can shift week to week along this coast. Expect the water near 7.0°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 May — averages 7.0°C
The sea at Cavendish Beach in Canada averages 7.0°C during May, 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 · May
7.0°C
cold · Poor
Live water now
…
Recommended wetsuit
6/5/4mm hooded fullsuit or drysuit
At 7.0°C only experienced cold-water athletes should enter — full thermal protection required.
Monthly comparison
Cold — wetsuit recommended · Cavendish Beach
Can you swim at Cavendish Beach in June? — 13.0°C water13.0°CCan you swim at Cavendish Beach in July? — 18.0°C water18.0°CCan you swim at Cavendish Beach in August? — 20.0°C water20.0°CCan you swim at Cavendish Beach in September? — 17.0°C water17.0°CCan you swim at Cavendish Beach in October? — 12.0°C water12.0°CCan you swim at Cavendish Beach in November? — 6.0°C water6.0°C
Frequently asked questions
What is the average sea temperature at Cavendish Beach in May?
Cavendish Beach averages 7.0°C in May, based on long-run climatology for the Gulf of St Lawrence.
Is the sea warm enough to swim at Cavendish Beach in May?
Not without thermal protection — a wetsuit is recommended at 7.0°C.
Do I need a wetsuit at Cavendish Beach in May?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.