Lac de Bienne Water Temperature
Live water temperature, trend and forecasts
Current water temperature
21,0°C
pleasant waterLast measurement : 15.09.2026 06:00
24h trend
+0,3°
24h average
21,3°C
At the foot of the Jura, Lake Biel charms with its terraced vineyards, St. Peter's Island and its well-equipped beaches. On the French-speaking side, the shores of La Neuveville and Le Landeron offer lovely access to the water for swimming.
The water temperature of Lake Biel follows a rhythm close to that of Lake Neuchâtel, with pleasant water from late June to early September. Check the current temperature, the 24-hour trend and the evolution of recent days before your outing to the lake.
7-day evolution
Daily average surface water temperatures.
Forecast
Predicted water temperatures for the coming days (simulation).
Tue 15.09
21,4°
Wed 16.09
21,3°
Thu 17.09
20,9°
Fri 18.09
20,6°
Average temperatures month by month
Historical averages of surface water temperature, computed over the period 1983–2024.
| Month | Average | Min – Max |
|---|---|---|
| January | 5,0°C | 4,4° – 5,8° |
| February | 4,4°C | 4,3° – 4,5° |
| March | 5,7°C | 4,5° – 7,2° |
| April | 9,1°C | 7,3° – 11,3° |
| May | 13,6°C | 11,5° – 15,4° |
| June | 17,5°C | 15,6° – 19,5° |
| July | 20,2°C | 19,5° – 21,0° |
| August | 20,8°C | 19,8° – 21,2° |
| September | 18,3°C | 16,8° – 19,7° |
| October | 15,0°C | 12,9° – 16,8° |
| November | 10,6°C | 8,6° – 12,8° |
| December | 7,1°C | 5,9° – 8,5° |
Lake location
Activities around Lac de Bienne
Beaches, swimming and family outings around this lake.
Île Saint-Pierre: the boat crossing from La Neuveville
A whole island just for the day, how does that sound? From La Neuveville, a boat drops you on the Île Saint-Pierre, in the middle of Lake Biel: quiet beaches, picnic areas, a former priory and shaded paths. On Saturdays, children travel free.
View listing
Landeron Pool: large pool, slides, and children's pool by Lake Biel
Want a day by the outdoor pool with the kids, by Lake Bienne? The Landeron Pool features its large swimming pool, slides, and octagonal wading pool set on spacious shaded lawns, just a stone's throw from the old medieval town of Landeron. Perfect for swimming, sliding, and splashing around all summer long with the family.
View listing
Maurice Moeckli Playground: pirates and suspension bridge by Lake Biel
And what if your children's adventure began aboard a pirate ship stranded on the sand, with their feet at the edge of Lake Biel? The Maurice Moeckli playground, in La Neuveville, is a public and free play area located along the lake. Let us take you to see what awaits you there.
View listing
Nouveau Port Beach: the family swimming spot of Landeron by Lake Biel
Want a relaxing day by the water with the kids, without spending a dime? At Landeron, the Plage du Nouveau Port welcomes you on the shores of Lake Biel, with its sand, shallow water, and family-friendly atmosphere, just a stone's throw from the old medieval town.
View listing
Plage Saint-Joux: family grass swimming in La Neuveville
What if your next day at the lake took place on a large lawn, with your feet in Lake Biel? The Saint-Joux beach, in La Neuveville, is a free public beach, family-friendly and easily accessible. Let us take you to see what awaits you there.
View listingFrequently asked questions
What is the water temperature of Lac de Bienne today?
Can you swim in Lac de Bienne right now?
When is the water of Lac de Bienne warmest?
Where does the temperature data come from?
Data provided by Alplakes (Eawag), Simstrat simulation model.
