March is a popular month to ask about Herring Cove because conditions can shift week to week along this coast. Expect the water near 4.0°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 Atlantic Ocean.
Herring Cove sea temperature in March — averages 4.0°C
The sea at Herring Cove in United States averages 4.0°C during March, based on long-run climatology for the Atlantic 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 · March
4.0°C
cold · Poor
Live water now
…
Recommended wetsuit
6/5/4mm hooded fullsuit or drysuit
At 4.0°C only experienced cold-water athletes should enter — full thermal protection required.
Monthly comparison
Cold — wetsuit recommended · Herring Cove
Can you swim at Herring Cove in June? — 15.0°C water15.0°CCan you swim at Herring Cove in July? — 19.0°C water19.0°CCan you swim at Herring Cove in August? — 20.0°C water20.0°CCan you swim at Herring Cove in September? — 18.0°C water18.0°CCan you swim at Herring Cove in October? — 14.0°C water14.0°CCan you swim at Herring Cove in November? — 10.0°C water10.0°C
Frequently asked questions
What is the average sea temperature at Herring Cove in March?
Herring Cove averages 4.0°C in March, based on long-run climatology for the Atlantic Ocean.
Is the sea warm enough to swim at Herring Cove in March?
Not without thermal protection — a wetsuit is recommended at 4.0°C.
Do I need a wetsuit at Herring Cove in March?
A 4/3 mm full wetsuit, boots and neoprene cap are recommended.