Cleuson Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Cleuson Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Cleuson Lake today is 13.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 |
|---|---|---|---|
| JUN 23 | 12.0°C | 9.6°C | |
| JUN 24 | 12.3°C | 9.6°C | |
| JUN 25 | 12.7°C | 9.6°C | |
| JUN 26 | 12.8°C | 9.6°C | |
| JUN 27 | 12.9°C | 9.6°C | |
| JUN 28 | 13.1°C | 9.6°C | |
| JUN 29 | 13.5°C | 9.6°C | |
| JUN 30 | 13.8°C | 9.6°C | |
| JUL 1 | 16.5°C | 13.9°C | |
| JUL 2 | 16.5°C | 14.1°C | |
| JUL 3 | 16.5°C | 14.2°C | |
| JUL 4 | 16.5°C | 14.3°C | |
| JUL 5 | 16.5°C | 14.5°C | |
| JUL 6 | 16.5°C | 14.6°C | |
| JUL 7 | 16.5°C | 14.7°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 | 0°C | 1°C | 1°C |
| February | 0°C | 1°C | 1°C |
| March | 0°C | 1°C | 1°C |
| April | 0°C | 2°C | 4°C |
| May | 3°C | 6°C | 10°C |
| June | 6°C | 10°C | 14°C |
| July | 12°C | 17°C | 21°C |
| August | 14°C | 19°C | 23°C |
| September | 9°C | 15°C | 20°C |
| October | 4°C | 8°C | 11°C |
| November | 0°C | 3°C | 6°C |
| December | 0°C | 1°C | 1°C |
Cleuson Lake: Water Temperature by Location
Cleuson Lake: Weather Forecast
July 1
July 2
July 3
July 4
Location & Local Information
Type: reservoir
Primary outflows: Printse
Catchment area: 16 km2 (6.2 sq mi)
Basin countries: Switzerland
Max. length: 1.4 km (0.87 mi)
Surface area: 0.51 km2 (0.20 sq mi)
Max. depth: 76 m (249 ft)
Water volume: 20 million cubic metres (16,000 acre⋅ft)
Surface elevation: 2,186 m (7,172 ft)
Cleuson Lake is a high-mountain reservoir in the Valais, set above the Val de Nendaz at roughly 2,200 m elevation. Its altitude strongly limits warming. In winter the lake is typically ice-covered, with water temperatures close to 0 °C (32 °F). After thawing in late spring, temperatures usually remain around 3–6 °C (37–43 °F). During the brief alpine summer, mainly July and August, the surface may reach about 8–12 °C (46–54 °F) on sunny days, then cool rapidly again in early autumn to below 8 °C (46 °F).
Swimming is not officially prohibited, but it is uncommon and generally discouraged for recreational bathing. Cleuson Lake is used for hydropower, is very deep, and the water stays cold even in midsummer. Weather can change quickly at this elevation, and access points are limited. As a result, only well-prepared cold-water swimmers might attempt a short dip, while most visitors enjoy the lake for hiking and scenery rather than swimming.