June is a popular month to ask about Sennen Cove because conditions can shift week to week along this coast. Expect the water near 14.0°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 Celtic Sea.
Sennen Cove sea temperature in June — averages 14.0°C
The sea at Sennen Cove in United Kingdom averages 14.0°C during June, based on long-run climatology for the Celtic Sea. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · June
14.0°C
cool · Fair
Live water now
…
June
Recommended wetsuit
4/3mm fullsuit
At 14.0°C you need a 4/3mm fullsuit, and many surfers add neoprene boots.
Monthly comparison
Cool — short dips or a shorty wetsuit · Sennen Cove
Can you swim at Sennen Cove in June? — 14.0°C water14.0°CCan you swim at Sennen Cove in July? — 16.0°C water16.0°CCan you swim at Sennen Cove in August? — 17.0°C water17.0°CCan you swim at Sennen Cove in September? — 16.0°C water16.0°CCan you swim at Sennen Cove in October? — 14.0°C water14.0°CCan you swim at Sennen Cove in November? — 12.0°C water12.0°C
Frequently asked questions
What is the average sea temperature at Sennen Cove in June?
Sennen Cove averages 14.0°C in June, based on long-run climatology for the Celtic Sea.
Is the sea warm enough to swim at Sennen Cove in June?
Not without thermal protection — a wetsuit is recommended at 14.0°C.
Do I need a wetsuit at Sennen Cove in June?
A 3/2 mm wetsuit makes longer swims comfortable.