Lac de Pététoz — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lac de Pététoz, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lac de Pététoz today is 19.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUL 15 | 19.9°C | 17.0°C | |
| JUL 16 | 20.0°C | 17.0°C | |
| JUL 17 | 20.0°C | 17.0°C | |
| JUL 18 | 20.1°C | 17.0°C | |
| JUL 19 | 19.9°C | 17.0°C | |
| JUL 20 | 19.7°C | 17.0°C | |
| JUL 21 | 19.6°C | 17.0°C | |
| JUL 23 | 17.0°C | 19.2°C | |
| JUL 24 | 17.0°C | 19.1°C | |
| JUL 25 | 17.0°C | 19.0°C | |
| JUL 26 | 17.0°C | 18.8°C | |
| JUL 27 | 17.0°C | 18.7°C | |
| JUL 28 | 17.0°C | 18.6°C | |
| JUL 29 | 17.0°C | 18.5°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 | 0°C | 4°C |
| February | 0°C | 0°C | 4°C |
| March | 0°C | 3°C | 6°C |
| April | 1°C | 6°C | 10°C |
| May | 4°C | 9°C | 14°C |
| June | 10°C | 15°C | 21°C |
| July | 11°C | 17°C | 22°C |
| August | 11°C | 17°C | 22°C |
| September | 8°C | 13°C | 19°C |
| October | 4°C | 8°C | 11°C |
| November | 0°C | 4°C | 7°C |
| December | 0°C | 0°C | 4°C |
Lac de Pététoz: Water Temperature by Location
Lac de Pététoz: Weather Forecast
July 23
July 24
July 25
July 26
July 27
Location & Local Information
Lac de Pététoz is a small, high-altitude lake located in the Haute-Savoie department of France, near the town of Bellevaux. Surrounded by alpine forests and rocky landscapes, it sits at an elevation of approximately 1,300 meters, making it a popular spot for hikers seeking a scenic and serene destination. Due to its altitude, the lake remains quite cool throughout the year. During the peak summer months, water temperatures typically do not exceed 18–20°C (64–68°F), which can feel refreshing or even chilly for swimmers.
Swimming in Lac de Pététoz is possible but not officially regulated, so visitors often enjoy a brief dip to cool off during the warmer months. Its clear, unspoiled waters are ideal for those seeking a natural, rustic swimming experience. However, due to its remote location, the lake lacks lifeguard supervision and formal facilities, so swimmers should exercise caution. The lake is best suited for experienced hikers and nature enthusiasts looking for a refreshing, natural swimming spot in a peaceful alpine setting.