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Lac de Guerlédan

Lac de Guerlédan Current Water Temperature and Forecast

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

11.9°C

TODAY

11.0°C

YESTERDAY

11.5°C

A WEEK AGO

As of today, the minimum water temperature in the Lac de Guerlédan 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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Lac de Guerlédan Over the Last 30 Days

Today the water temperature in Lac de Guerlédan 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 is trending upward, and it has increased both over the past 30 days and the past week.

The forecasted water temperature values for Lac de Guerlédan 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

DateCurrentAverageForecast
Apr 1511.5°C9.9°C
Apr 1611.5°C9.9°C
Apr 1711.6°C9.9°C
Apr 1811.2°C9.9°C
Apr 1911.2°C9.9°C
Apr 2011.2°C9.9°C
Apr 2111.0°C9.9°C
Apr 2211.9°C9.9°C
Apr 239.9°C11.8°C
Apr 249.9°C11.7°C
Apr 259.9°C11.6°C
Apr 269.9°C11.5°C
Apr 279.9°C11.4°C
Apr 289.9°C11.3°C
Apr 299.9°C11.2°C
Apr 309.9°C11.1°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 Guerlédan by Month

January

MinimumAverageMaximum
3°C5.5°C8°C

February

MinimumAverageMaximum
3°C5.3°C9°C

March

MinimumAverageMaximum
3°C6.5°C10°C

April

MinimumAverageMaximum
7°C9.9°C13°C

May

MinimumAverageMaximum
10°C13.4°C16°C

June

MinimumAverageMaximum
16°C18.5°C23°C

July

MinimumAverageMaximum
17°C20°C25°C

August

MinimumAverageMaximum
17°C21.4°C23°C

September

MinimumAverageMaximum
15°C17.6°C23°C

October

MinimumAverageMaximum
8°C11°C14°C

November

MinimumAverageMaximum
3°C6°C9°C

December

MinimumAverageMaximum
3°C6°C9°C

Monthly Water Temperature Histogram for Lac de Guerlédan

Lac de Guerlédan Weather

APRIL 23

9°C / 15°C
moderate rain

rain: 67% | wind: 23 km/h

APRIL 24

7°C / 15°C
overcast

rain: 8% | wind: 19 km/h

APRIL 25

4°C / 16°C
overcast

rain: 10% | wind: 16 km/h

APRIL 26

4°C / 16°C
fog

rain: 20% | wind: 16 km/h

Water Temperature in Lac de Guerlédan: General Trends and Swimming Opportunities

Lac de Guerlédan, located in the Brittany region of France, is the largest lake in the region and a popular destination for outdoor enthusiasts. It was created by the Guerlédan Dam on the Blavet River and offers a variety of recreational activities, including boating, fishing, and hiking around its scenic shores. The lake’s water temperature can vary significantly throughout the year, with the warmest conditions occurring during the summer months. In July and August, the water temperature typically reaches around 20°C to 22°C (68°F to 72°F), making it suitable for swimming. Many visitors enjoy taking a dip during these months, though the lack of designated swimming areas means swimmers must take extra precautions. There are no lifeguards, and the water can have varying depths and currents, so swimming is recommended only in calm, less trafficked sections.

During the cooler months, the water temperature in Lac de Guerlédan drops considerably, often falling to around 10°C to 12°C (50°F to 54°F) in spring and fall, making swimming less comfortable and more challenging. While the lake is a beautiful spot for walking and cycling along its shores, the cooler water can deter many swimmers during these periods. It is advisable to check the water quality before swimming, as the lake is used for various activities, including boat traffic and fishing. In addition to swimming, Lac de Guerlédan is also known for its stunning natural beauty, offering visitors the chance to enjoy a peaceful, picturesque environment while participating in various outdoor pursuits.

Geographical Location of Lac de Guerlédan

Frequently Asked Questions About Lac de Guerlédan and its Water Temperatures

What is the current water temperature in Lac de Guerlédan?

The water temperature today in Lac de Guerlédan is 53°F (11.9°C).

What is the water temperature in Lac de Guerlédan during the summer months?

The average water temperature in Lac de Guerlédan 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 Guerlédan in May?

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

What is the water temperature in Lac de Guerlédan in September?

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

Where is Lac de Guerlédan located?

Lac de Guerlédan is located in France in Brittany, at an elevation of 417 feet (127 meters) above sea level.

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

Yes, it is possible to swim in Lac de Guerlédan, France. The lake offers many beach areas suitable for swimming and also hosts triathlon events.

What are the coordinates of Lac de Guerlédan?

Lac de Guerlédan is located at coordinates 48.2050°N 3.0490°W.