September is a popular month to ask about Henne Strand 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 North Sea.
Henne Strand sea temperature in September — averages 16.0°C
The sea at Henne Strand in Denmark averages 16.0°C during September, based on long-run climatology for the North 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 · September
16.0°C
mild · Fair
Live water now
…
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 · Henne Strand
Can you swim at Henne Strand in June? — 13.0°C water13.0°CCan you swim at Henne Strand in July? — 17.0°C water17.0°CCan you swim at Henne Strand in August? — 18.0°C water18.0°CCan you swim at Henne Strand in September? — 16.0°C water16.0°CCan you swim at Henne Strand in October? — 12.0°C water12.0°CCan you swim at Henne Strand in November? — 8.0°C water8.0°C
Frequently asked questions
What is the average sea temperature at Henne Strand in September?
Henne Strand averages 16.0°C in September, based on long-run climatology for the North Sea.
Is the sea warm enough to swim at Henne Strand in September?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Henne Strand in September?
A 2 mm shorty is comfortable for sessions over 30 minutes.