Lac d'Ilay — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lac d'Ilay, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lac d'Ilay today is 10.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. 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 |
|---|---|---|---|
| OCT 23 | 12.7°C | 12.0°C | |
| OCT 24 | 12.3°C | 12.0°C | |
| OCT 25 | 12.1°C | 12.0°C | |
| OCT 26 | 11.9°C | 12.0°C | |
| OCT 27 | 11.1°C | 12.0°C | |
| OCT 28 | 11.5°C | 12.0°C | |
| OCT 29 | 11.3°C | 12.0°C | |
| OCT 30 | 11.1°C | 12.0°C | |
| OCT 31 | 12.0°C | 10.8°C | |
| NOV 1 | 8.0°C | 10.6°C | |
| NOV 2 | 8.0°C | 10.5°C | |
| NOV 3 | 8.0°C | 10.3°C | |
| NOV 4 | 8.0°C | 10.2°C | |
| NOV 5 | 8.0°C | 10.0°C | |
| NOV 6 | 8.0°C | 9.9°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 | 1°C | 5°C | 8°C |
| February | 1°C | 5°C | 8°C |
| March | 3°C | 7°C | 10°C |
| April | 6°C | 10°C | 14°C |
| May | 8°C | 13°C | 19°C |
| June | 14°C | 20°C | 25°C |
| July | 16°C | 21°C | 26°C |
| August | 16°C | 21°C | 26°C |
| September | 12°C | 18°C | 23°C |
| October | 8°C | 12°C | 15°C |
| November | 4°C | 8°C | 11°C |
| December | 1°C | 5°C | 8°C |
Lac d'Ilay: Water Temperature by Location
Lac d'Ilay: Weather Forecast
October 31
November 1
November 2
November 3
November 4
Location & Local Information
Max. length: 1.9 km (1.2 mi)
Max. width: 0.4 km (0.25 mi)
Surface area: 72 ha (180 acres)
Average depth: 10.3 m (34 ft)
Max. depth: 32 m (105 ft)
Surface elevation: 774 m (2,539 ft)
Islands: 1 (Île de la Motte)
Lac d’Ilay, nestled in the Jura mountains of eastern France, is renowned for its clear, turquoise waters and serene surroundings. In summer, water temperatures in Lac d’Ilay generally reach between 20°C and 23°C (68°F and 73°F), providing comfortable conditions for swimming, especially during warm days. The lake is part of a protected natural area, and its remote setting offers a peaceful experience for those seeking a refreshing swim in a natural environment. The lake's shores, with pebble beaches and shaded spots, invite visitors for picnics, sunbathing, and leisurely swims in the summer.
Swimming in Lac d’Ilay is popular among locals and visitors looking for a quiet, scenic retreat away from busier tourist areas. The surrounding trails are excellent for hiking, allowing for beautiful views of the lake and its forested surroundings. While Lac d’Ilay is relatively safe for swimming, caution is advised as the lake’s bed can be rocky and uneven, and water depth varies in certain parts.