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Semnon River

Semnon River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Semnon River, 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 Water Temperature in Semnon River

12.0°C

TODAY

12.0°C

YESTERDAY

12.9°C

A WEEK AGO

As of today, the minimum water temperature in the Semnon River 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 Semnon River Over the Last 30 Days

Today the water temperature in Semnon River is lower than the same day in previous years. The water temperature range here in October is from 10°C to 16°C. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Semnon 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
Oct 2312.9°C13.0°C
Oct 2412.8°C13.0°C
Oct 2512.8°C13.0°C
Oct 2612.8°C13.0°C
Oct 2712.7°C13.0°C
Oct 2812.4°C13.0°C
Oct 2912.0°C13.0°C
Oct 3012.0°C13.0°C
Oct 3113.0°C12.1°C
Nov 19.0°C11.8°C
Nov 29.0°C11.5°C
Nov 39.0°C11.3°C
Nov 49.0°C11.1°C
Nov 59.0°C10.9°C
Nov 69.0°C10.7°C
Nov 79.0°C10.5°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 Semnon River by Month

January

MinimumAverageMaximum
4°C6°C8°C

February

MinimumAverageMaximum
3°C6°C9°C

March

MinimumAverageMaximum
5°C8°C11°C

April

MinimumAverageMaximum
10°C13.4°C16°C

May

MinimumAverageMaximum
13°C15.9°C19°C

June

MinimumAverageMaximum
15°C18.3°C22°C

July

MinimumAverageMaximum
16°C19.4°C24°C

August

MinimumAverageMaximum
16°C19.1°C24°C

September

MinimumAverageMaximum
14°C17°C22°C

October

MinimumAverageMaximum
10°C13°C16°C

November

MinimumAverageMaximum
6°C9°C12°C

December

MinimumAverageMaximum
4°C6°C8°C

Monthly Water Temperature Histogram for Semnon River

Water Temperature in Cities and Towns on Semnon River

Congrier
France (Pays de la Loire)
11.8°C
Saint-Erblon
France (Brittany)
11.8°C
Senonnes
France (Pays de la Loire)
11.8°C
Pouancé
France (Pays de la Loire)
11.8°C
Eancé
France (Brittany)
11.8°C
Martigné-Ferchaud
France (Brittany)
11.9°C
Fercé
France (Pays de la Loire)
11.9°C
Thourie
France (Brittany)
11.8°C
Soulvache
France (Pays de la Loire)
12.0°C
Teillay
France (Brittany)
11.9°C
Ercé-en-Lamée
France (Brittany)
11.9°C
Lalleu
France (Brittany)
11.8°C
Tresbœuf
France (Brittany)
11.8°C
La Bosse-de-Bretagne
France (Brittany)
11.9°C
Bain-de-Bretagne
France (Brittany)
12.0°C
Pancé
France (Brittany)
11.8°C
Pléchâtel
France (Brittany)
11.9°C
Poligné
France (Brittany)
11.8°C
Bourg-des-Comptes
France (Brittany)
11.9°C

Semnon River Weather

OCTOBER 31

13°C / 18°C
slight rain

rain: 42% | wind: 18 km/h

NOVEMBER 1

11°C / 16°C
slight rain

rain: 54% | wind: 33 km/h

Water Temperature in Semnon River: General Trends and Swimming Opportunities

Source:
• location Congrier
• coordinates 47°47′30″N 01°08′34″W
• elevation 90 m (300 ft)
Mouth:
• location Vilaine
• coordinates 47°53′59″N 01°45′25″W
• elevation 7 m (23 ft)
Length 73.3 km (45.5 mi)
Basin size 400 km2 (150 sq mi)
Discharge:
• average 2.8 m3/s (99 cu ft/s)

The Semnon River, winding through the Brittany region in France, is a calm waterway that supports local recreation and wildlife. In the summer, water temperatures in the Semnon generally range from 16°C to 20°C (61°F to 68°F), making it relatively cool but refreshing for outdoor activities. Swimming is possible in certain sections of the river, particularly where currents are gentle and access to the water is easier, though there aren’t any officially designated swimming spots along the river. This means that while locals occasionally take a quick dip, it’s recommended to exercise caution and check for any local advisories.

The Semnon River is ideal for light water activities like kayaking, fishing, and riverside picnicking, rather than extended swimming due to variable water quality and natural vegetation along its banks. Those looking to enjoy the water safely should prioritize checking local notices or speaking with nearby residents about water conditions, as the river’s environment can change with the seasons and rainfall levels.

Geographical Location of Semnon River

Frequently Asked Questions About Semnon River and its Water Temperatures

What is the current water temperature in Semnon River?

The water temperature today in Semnon River ranges from 53°F (11.8°C) to 54°F (12.0°C).

What is the water temperature in Semnon River during the summer months?

The average water temperature in Semnon River during the summer months is typically between 65°F to 67°F (18°C to 19°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Semnon River in May?

The average water temperature in Semnon River in May ranges from 55°F to 66°F (13°C to 19°C).

What is the water temperature in Semnon River in September?

The average water temperature in Semnon River in September is typically between 57°F to 72°F (14°C to 22°C).

Where does Semnon River flow?

Semnon River flows through France (Pays de la Loire, Brittany).