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 22.3°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 |
|---|---|---|---|
| JUL 15 | 22.8°C | 21.0°C | |
| JUL 16 | 22.9°C | 21.0°C | |
| JUL 17 | 22.9°C | 21.0°C | |
| JUL 18 | 22.9°C | 21.0°C | |
| JUL 19 | 22.8°C | 21.0°C | |
| JUL 20 | 22.4°C | 21.0°C | |
| JUL 21 | 22.5°C | 21.0°C | |
| JUL 22 | 22.3°C | 21.0°C | |
| JUL 23 | 21.0°C | 22.2°C | |
| JUL 24 | 21.0°C | 22.2°C | |
| JUL 25 | 21.0°C | 22.1°C | |
| JUL 26 | 21.0°C | 22.0°C | |
| JUL 27 | 21.0°C | 22.0°C | |
| JUL 28 | 21.0°C | 21.9°C | |
| JUL 29 | 21.0°C | 21.8°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
July 23
July 24
July 25
July 26
July 27
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.