August is a popular month to ask about Hel Beach because conditions can shift week to week along this coast. Expect the water near 19.0°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 Baltic Sea.
Hel Beach sea temperature in August — averages 19.0°C
The sea at Hel Beach in Poland averages 19.0°C during August, based on long-run climatology for the Baltic 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 · August
19.0°C
mild · Good
Live water now
…
Recommended wetsuit
Shorty 2mm
At 19.0°C a 2mm shorty keeps surfers warm; lap swimmers can usually skip the neoprene.
Monthly comparison
Yes, but expect a fresh dip · Hel Beach
Can you swim at Hel Beach in June? — 14.0°C water14.0°CCan you swim at Hel Beach in July? — 18.0°C water18.0°CCan you swim at Hel Beach in August? — 19.0°C water19.0°CCan you swim at Hel Beach in September? — 16.0°C water16.0°CCan you swim at Hel Beach in October? — 12.0°C water12.0°CCan you swim at Hel Beach in November? — 8.0°C water8.0°C
Frequently asked questions
What is the average sea temperature at Hel Beach in August?
Hel Beach averages 19.0°C in August, based on long-run climatology for the Baltic Sea.
Is the sea warm enough to swim at Hel Beach in August?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Hel Beach in August?
A 2 mm shorty is comfortable for sessions over 30 minutes.