Lake Neuchâtel — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Neuchâtel, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Neuchâtel today is 20.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 13 | 21.2°C | 19.5°C | |
| SEP 14 | 21.0°C | 19.5°C | |
| SEP 15 | 20.6°C | 19.5°C | |
| SEP 16 | 21.4°C | 19.5°C | |
| SEP 17 | 20.8°C | 19.5°C | |
| SEP 18 | 20.7°C | 19.5°C | |
| SEP 19 | 20.3°C | 19.5°C | |
| SEP 20 | 20.3°C | 19.5°C | |
| SEP 21 | 19.5°C | 20.5°C | |
| SEP 22 | 19.5°C | 20.5°C | |
| SEP 23 | 19.5°C | 20.4°C | |
| SEP 24 | 19.5°C | 20.4°C | |
| SEP 25 | 19.5°C | 20.3°C | |
| SEP 26 | 19.5°C | 20.3°C | |
| SEP 27 | 19.5°C | 20.2°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 3°C | 6°C | 9°C |
| February | 4°C | 6°C | 7°C |
| March | 5°C | 7°C | 9°C |
| April | 5°C | 10°C | 16°C |
| May | 10°C | 16°C | 22°C |
| June | 16°C | 21°C | 27°C |
| July | 20°C | 24°C | 29°C |
| August | 19°C | 24°C | 29°C |
| September | 14°C | 20°C | 25°C |
| October | 11°C | 14°C | 17°C |
| November | 6°C | 11°C | 14°C |
| December | 4°C | 7°C | 9°C |
Lake Neuchâtel: Water Temperature by Location
Lake Neuchâtel: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Primary inflows: L'Orbe (La Thielle), Le Bey, La Brine, L'Arnon, Ruisseau de la Vaux, Le Vivier, L'Areuse, Le Seyon; Canal Oriental, Le Buron, Ruisseau de l'Epena, La Menthue, Ruisseau de Crêt Moron, Ruisseau de Longefont, Ruisseau de Robin, Ruisseau de la Molliette, Canal de la Broye
Primary outflows: Zihlkanal / Canal de la Thielle
Catchment area: 2,670 km2 (1,030 sq mi)
Basin countries: Switzerland
Max. length: 38.3 km (23.8 mi)
Max. width: 8.2 km (5.1 mi)
Surface area: 218.3 km2 (84.3 sq mi)
Average depth: 64.2 m (211 ft)
Max. depth: 152 m (499 ft)
Water volume: 13.77 km3 (11,160,000 acre⋅ft)
Residence time: 8.2 years
Surface elevation: 429 m (1,407 ft)
Lake Neuchâtel is the largest lake located entirely within Switzerland and is known for its broad, shallow shores. These characteristics influence water temperature noticeably. In winter, surface temperatures usually fall to about 4–6 °C (39–43 °F). During spring, the lake warms steadily, reaching roughly 10–15 °C (50–59 °F). The warmest period is summer, when July and August typically bring temperatures of around 20–24 °C (68–75 °F), and in hot years short peaks near 25 °C (77 °F) are possible. In autumn, cooling is gradual, and the lake often remains above 15 °C (59 °F) into late September.
Swimming in Lake Neuchâtel is fully allowed and very popular. The water quality is high, and the gently sloping shores create favorable and safe conditions for recreational swimming. Numerous public beaches and natural access points make the lake attractive for families and casual swimmers. Thanks to its shallowness, the lake warms relatively quickly in summer, offering comfortable conditions throughout the main bathing season.