Hesse — Water Temperature Today and Throughout the Year
Discover water temperatures in Hesse (Germany), with real-time data and annual trends. Find all locations in the region and check the water temperature in them. We find every place where you can swim and show you the water temperature there today and throughout the year.
Water Temperature in Lakes and Rivers
Popular Lakes
Popular Rivers
Popular Places
- Limburg an der Lahn12°C
- Kassel10°C
- Marburg10°C
- Frankfurt am Main12°C
- Giessen11°C
- Eschwege10°C
- Wetzlar11°C
- Offenbach12°C
- Fulda10°C
- Bad Vilbel12°C
- Wiesbaden12°C
- Hanau12°C
- Bad Hersfeld10°C
- Haiger11°C
- Dillenburg11°C
- Darmstadt14°C
- Gelnhausen11°C
- Friedberg12°C
- Bad Nauheim12°C
- Karben12°C
- Rüsselsheim12°C
- Hattersheim12°C
- Taunusstein11°C
Water Temperature and Swimming Overview
Regions and Map
Water Temperature Trends
Hesse, located in central Germany, is home to numerous lakes and rivers, including the Edersee, Lake Niederwald, and sections of the Rhine, Main, and Lahn rivers. Due to the region’s temperate climate, water temperatures in these bodies vary significantly throughout the year. In winter, temperatures in most lakes and rivers drop to around 2–5°C (36–41°F), making swimming uncomfortable except for winter swimming enthusiasts. By late spring, as temperatures rise, the water gradually warms to around 10–15°C (50–59°F), making it more suitable for water activities.
During the summer months, particularly from June to August, many lakes in Hesse reach comfortable swimming temperatures of 18–24°C (64–75°F), depending on the weather and depth of the water. The Edersee, one of the largest reservoirs in Germany, typically reaches around 20–23°C (68–73°F) in peak summer, making it a popular spot for swimming, boating, and other water sports. Smaller lakes, such as Lake Niederwald or the Langener Waldsee near Frankfurt, can warm up even more, occasionally exceeding 25°C (77°F) during heatwaves. Rivers like the Lahn and Main are generally cooler, often ranging between 16–20°C (61–68°F) in summer due to continuous water flow.
As autumn arrives, water temperatures begin to drop, falling below 15°C (59°F) by October and continuing to cool as winter approaches. While outdoor swimming is most enjoyable from June to early September, some lakes, especially those with designated swimming areas, remain accessible for those who enjoy cold-water swimming. With a mix of large reservoirs, natural lakes, and scenic rivers, Hesse provides various options for water activities throughout the warmer months.