Lac d'Annecy — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lac d'Annecy, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lac d'Annecy today is 26.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 9 | 23.5°C | 21.1°C | |
| JUL 10 | 23.8°C | 21.1°C | |
| JUL 11 | 23.7°C | 21.1°C | |
| JUL 12 | 23.9°C | 21.1°C | |
| JUL 13 | 23.9°C | 21.1°C | |
| JUL 14 | 24.0°C | 21.1°C | |
| JUL 15 | 26.5°C | 21.1°C | |
| JUL 16 | 26.5°C | 21.1°C | |
| JUL 17 | 21.1°C | 26.2°C | |
| JUL 18 | 21.1°C | 26.0°C | |
| JUL 19 | 21.1°C | 25.7°C | |
| JUL 20 | 21.1°C | 25.4°C | |
| JUL 21 | 21.1°C | 25.2°C | |
| JUL 22 | 21.1°C | 24.9°C | |
| JUL 23 | 21.1°C | 24.6°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 | 4°C | 8°C | 11°C |
| February | 3°C | 7°C | 10°C |
| March | 6°C | 10°C | 13°C |
| April | 7°C | 11°C | 15°C |
| May | 9°C | 14°C | 20°C |
| June | 13°C | 19°C | 25°C |
| July | 16°C | 21°C | 27°C |
| August | 16°C | 21°C | 26°C |
| September | 12°C | 18°C | 23°C |
| October | 10°C | 14°C | 18°C |
| November | 6°C | 10°C | 13°C |
| December | 4°C | 8°C | 11°C |
Lac d'Annecy: Water Temperature by Location
Lac d'Annecy: Weather Forecast
July 17
July 18
July 19
July 20
July 21
Location & Local Information
Primary inflows Ire, Eau morte, Laudon, Bornette and Biolon
Primary outflows Thiou
Catchment area 251 km2 (97 sq mi)
Basin countries France
Max. length 14.6 km (9.1 mi)
Max. width 3.2 km (2.0 mi)
Surface area 27.59 km2 (10.65 sq mi)
Average depth 41 m (135 ft)
Max. depth 82 m (269 ft)
Lake Annecy, one of France's most famous lakes, is renowned for its stunning alpine scenery and crystal-clear waters, making it a top destination for both locals and tourists. The water temperature at Lake Annecy varies significantly throughout the year. In the summer months, the lake's water temperature can reach up to 20°C to 24°C (68°F to 75°F), which makes it ideal for swimming, kayaking, and other water sports. Early spring and late autumn temperatures, however, tend to be cooler, with the water hovering around 10°C to 12°C (50°F to 54°F), which may not be warm enough for some swimmers, but it is still manageable for those looking for a brisk dip.
The best time for swimming in Lake Annecy is between June and September when the water is warm enough for comfortable swimming. The lake is equipped with several designated swimming areas, and there are also natural spots around the lake where swimmers can enjoy the cool, clear waters. For those seeking to explore deeper parts of the lake, activities like diving and paddleboarding are also very popular. The lake’s pristine conditions and mild climate make it an attractive destination for outdoor activities throughout the warmer months.