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Lac de Grand-Lieu

Lac de Grand-Lieu Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Lac de Grand-Lieu, 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

12.4°C

TODAY

12.0°C

YESTERDAY

13.3°C

A WEEK AGO

As of today, the minimum water temperature in the Lac de Grand-Lieu ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.

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 de Grand-Lieu Over the Last 30 Days

Today the water temperature in Lac de Grand-Lieu is higher than the same day in previous years. The water temperature range here in April is from 7°C to 13°C. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Lac de Grand-Lieu 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
Apr 15	13.3°C	9.9°C
Apr 16	13.3°C	9.9°C
Apr 17	12.9°C	9.9°C
Apr 18	12.7°C	9.9°C
Apr 19	12.5°C	9.9°C
Apr 20	12.6°C	9.9°C
Apr 21	12.0°C	9.9°C
Apr 22	12.4°C	9.9°C
Apr 23		9.9°C	12.2°C
Apr 24		9.9°C	12.0°C
Apr 25		9.9°C	11.8°C
Apr 26		9.9°C	11.6°C
Apr 27		9.9°C	11.4°C
Apr 28		9.9°C	11.3°C
Apr 29		9.9°C	11.2°C
Apr 30		9.9°C	11.1°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Water Temperature Ranges in Lac de Grand-Lieu by Month

January

Minimum	Average	Maximum
3°C	5.5°C	8°C

February

Minimum	Average	Maximum
3°C	5.3°C	9°C

March

Minimum	Average	Maximum
3°C	7°C	11°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	6°C	9°C

Monthly Water Temperature Histogram for Lac de Grand-Lieu

Lac de Grand-Lieu Weather

APRIL 23

10°C / 16°C

slight rain

rain: 73% | wind: 25 km/h

APRIL 24

9°C / 17°C

overcast

rain: 8% | wind: 15 km/h

APRIL 25

8°C / 18°C

partly cloudy

rain: 5% | wind: 14 km/h

APRIL 26

8°C / 19°C

overcast

rain: 8% | wind: 20 km/h

Water Temperature in Lac de Grand-Lieu: General Trends and Swimming Opportunities

Lac de Grand-Lieu is one of the largest natural lakes in France, located near Nantes in the Loire-Atlantique department. This lake is renowned for its biodiversity, being a significant wetland area and a protected nature reserve. While it is a popular destination for birdwatching and nature walks, swimming in Lac de Grand-Lieu is not typically recommended. The lake's water temperature can reach up to 22°C (72°F) during the warmest months of summer, but it remains relatively cooler compared to other more popular swimming lakes. The water quality is not consistently monitored for recreational swimming, as the lake’s primary purpose is to serve as a habitat for wildlife.

Due to the lake's ecological importance and its role as a nature reserve, swimming is generally restricted, and access to certain areas of the lake may be limited to preserve its delicate environment. Visitors can enjoy other activities, such as hiking around the lake's perimeter or taking boat tours to explore its rich flora and fauna. While the temperature may be comfortable for short dips, the lack of designated swimming zones and the area's focus on conservation mean that swimming is not a primary activity at Lac de Grand-Lieu.

Geographical Location of Lac de Grand-Lieu

Frequently Asked Questions About Lac de Grand-Lieu and its Water Temperatures

What is the current water temperature in Lac de Grand-Lieu?

The water temperature today in Lac de Grand-Lieu is 54°F (12.4°C).

What is the water temperature in Lac de Grand-Lieu during the summer months?

The average water temperature in Lac de Grand-Lieu 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 de Grand-Lieu in May?

The average water temperature in Lac de Grand-Lieu in May ranges from 50°F to 61°F (10°C to 16°C).

What is the water temperature in Lac de Grand-Lieu in September?

The average water temperature in Lac de Grand-Lieu in September is typically between 59°F to 73°F (15°C to 23°C).

Where is Lac de Grand-Lieu located?

Lac de Grand-Lieu is located in France in Pays de la Loire, at an elevation of 3 feet (1 meters) above sea level.

Is it possible to swim in Lac de Grand-Lieu and what are the possibilities for this?

No, it is not possible to swim in Lac de Grand-Lieu in France due to its protected status as a natural reserve. There are no facilities or allowances for recreational swimming activities.

What are the coordinates of Lac de Grand-Lieu?

Lac de Grand-Lieu is located at coordinates 47.0940°N 1.6630°W.