Sea temperature in Germany
Live water temperatures and swimming conditions across 51 beaches on the Germany coast.
Best time to swim in Germany
The sea in Germany peaks in August, when the water averages around 19°C.
On average, 0 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Outside peak season the water drops toward 7°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 3°C, when cold-water swimmers dominate the coast.
Germany sea temperature history
Long-term climatology for Germany shows an annual mean sea temperature of 10°C, ranging from 3°C in winter to 19°C at the summer peak.
The seasonal swing is roughly 16°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Germany, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Values are area averages; individual beaches vary by exposure and depth.
Germany sea temperature: frequently asked questions
What is the warmest month to swim in Germany?
August is the warmest month in Germany, when the sea averages about 19°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Germany?
The coldest month in Germany is typically February, when the water averages around 3°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Germany without a wetsuit?
The sea in Germany rarely climbs above 20°C, so a wetsuit is recommended year-round for anything longer than a quick dip.
Do I need a wetsuit in Germany?
Outside peak summer the water in Germany drops toward 7°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Germany?
The long-term annual mean sea temperature in Germany is about 10°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Germany?
The live reading at the top of this page shows the current sea temperature in Germany, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.