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Lac d'Ilay

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Lac d'Ilay Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Lac d'Ilay, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Lake Water Temperature Information
6.8°C
TODAY
6.9°C
YESTERDAY
6.5°C
A WEEK AGO
As of today, the minimum water temperature in the Lac d'Ilay ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.
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.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Lac d'Ilay Over the Last 30 Days
Today the water temperature in Lac d'Ilay is lower than the same day in previous years. The water temperature range here in April is from 7°C to 13°C. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for Lac d'Ilay are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Daily Water Temperature Chart
Date | Current | Average | Forecast |
---|---|---|---|
Mar 25 | 6.5°C | 6.0°C | |
Mar 26 | 6.4°C | 6.0°C | |
Mar 27 | 6.4°C | 6.0°C | |
Mar 28 | 6.5°C | 6.0°C | |
Mar 29 | 6.6°C | 6.0°C | |
Mar 30 | 6.7°C | 6.0°C | |
Mar 31 | 6.9°C | 6.0°C | |
Apr 1 | 6.8°C | 9.9°C | |
Apr 2 | 9.9°C | 7.0°C | |
Apr 3 | 9.9°C | 7.2°C | |
Apr 4 | 9.9°C | 7.4°C | |
Apr 5 | 9.9°C | 7.6°C | |
Apr 6 | 9.9°C | 7.7°C | |
Apr 7 | 9.9°C | 7.8°C | |
Apr 8 | 9.9°C | 7.9°C | |
Apr 9 | 9.9°C | 8.0°C |
Water Temperature Ranges in Lac d'Ilay by Month
January
Minimum | Average | Maximum |
---|---|---|
3°C | 5°C | 7°C |
February
Minimum | Average | Maximum |
---|---|---|
3°C | 5.3°C | 9°C |
March
Minimum | Average | Maximum |
---|---|---|
3°C | 6°C | 9°C |
April
Minimum | Average | Maximum |
---|---|---|
7°C | 9.9°C | 13°C |
May
Minimum | Average | Maximum |
---|---|---|
10°C | 13.4°C | 16°C |
June
Minimum | Average | Maximum |
---|---|---|
16°C | 18.5°C | 23°C |
July
Minimum | Average | Maximum |
---|---|---|
17°C | 20°C | 25°C |
August
Minimum | Average | Maximum |
---|---|---|
17°C | 21.4°C | 23°C |
September
Minimum | Average | Maximum |
---|---|---|
15°C | 17.6°C | 23°C |
October
Minimum | Average | Maximum |
---|---|---|
8°C | 11°C | 14°C |
November
Minimum | Average | Maximum |
---|---|---|
3°C | 6°C | 9°C |
December
Minimum | Average | Maximum |
---|---|---|
3°C | 5°C | 7°C |
Monthly Water Temperature Histogram for Lac d'Ilay
Lac d'Ilay Weather
APRIL 2
2°C / 16°C
overcastrain: 5% | wind: 9 km/h
APRIL 3
5°C / 19°C
overcastrain: 3% | wind: 7 km/h
APRIL 4
8°C / 18°C
overcastrain: 5% | wind: 9 km/h
Water Temperature in Lac d'Ilay: General Trends and Swimming Opportunities

© Fabienne Pfeil
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.
Geographical Location of Lac d'Ilay
Nearby Lakes
Frequently Asked Questions About Lac d'Ilay and its Water Temperatures
What is the current water temperature in Lac d'Ilay?
The water temperature today in Lac d'Ilay is 44°F (6.8°C).
What is the water temperature in Lac d'Ilay during the summer months?
The average water temperature in Lac d'Ilay during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 77°F (25°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Lac d'Ilay in May?
The average water temperature in Lac d'Ilay in May ranges from 50°F to 61°F (10°C to 16°C).
What is the water temperature in Lac d'Ilay in September?
The average water temperature in Lac d'Ilay in September is typically between 59°F to 73°F (15°C to 23°C).
Where is Lac d'Ilay located?
Lac d'Ilay is located in France in Bourgogne-Franche-Comté, at an elevation of 2,539 feet (774 meters) above sea level.
Is it possible to swim in Lac d'Ilay and what are the possibilities for this?
Yes, it is possible to swim in Lac d'Ilay in France. The lake offers designated swimming locations, often with lifeguards during the summer months, along with boat rentals for exploring.
What are the coordinates of Lac d'Ilay?
Lac d'Ilay is located at coordinates 46.6250°N 5.8970°E.