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Hennebont — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Hennebont, trends, monthly ranges and the forecast for the coming days.

Blavet River, France
Blavet River, France © Par Moreau.henri — Travail personnel, CC BY-SA 4.0

Current Water Temperature

10.4°C
Today
11.0°C
Yesterday
11.6°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Hennebont today is 10.4°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature 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.

Water Temperature Chart Over the Last 30 Days

From September 30 to October 31

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 2311.6°C13.0°C
OCT 2412.1°C13.0°C
OCT 2511.7°C13.0°C
OCT 2611.4°C13.0°C
OCT 2711.4°C13.0°C
OCT 2812.0°C13.0°C
OCT 2911.0°C13.0°C
OCT 3010.6°C13.0°C
OCT 3113.0°C10.3°C
NOV 18.9°C10.3°C
NOV 28.9°C10.2°C
NOV 38.9°C10.1°C
NOV 48.9°C10.0°C
NOV 58.9°C10.0°C
NOV 68.9°C9.9°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
January2°C6°C9°C
February2°C6°C9°C
March5°C9°C11°C
April9°C12°C15°C
May10°C15°C19°C
June14°C20°C24°C
July16°C20°C25°C
August16°C20°C25°C
September12°C17°C21°C
October9°C13°C16°C
November5°C9°C13°C
December2°C6°C11°C

Hennebont: Weather Forecast

October 31

° / °
mainly clear
rain: 0% | wind:

November 1

° / °
mainly clear
rain: 0% | wind:

November 2

° / °
overcast
rain: 0% | wind:

November 3

° / °
partly cloudy
rain: 0% | wind:

November 4

° / °
overcast
rain: 3% | wind:

Location & Local Information

Hennebont, a historic town in Brittany, France, sits along the banks of the Blavet River, offering a peaceful setting for riverside activities. The Blavet flows gently through this area, with water temperatures generally moderate but cool, reaching around 15–18°C (59–64°F) in summer and dropping to 6–8°C (43–46°F) in winter. While the river’s clear waters make it visually appealing, swimming opportunities directly in Hennebont are limited due to the cooler temperatures and sections with stronger currents, especially near the town’s port areas.

Locals and visitors often choose other forms of recreation along the Blavet, such as kayaking, canoeing, or paddleboarding, which are popular in the warmer months. The town is surrounded by scenic cycling and walking paths along the river, providing an ideal way to explore the natural beauty of the area. Those seeking dedicated swimming spots typically venture to coastal areas or lakes nearby, where the water is warmer and conditions more favorable for swimming.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Hennebont?
Water Temperature in Hennebont today is 10.4°C.
What is the water temperature in Hennebont during the summer months?
The water temperature in Hennebont in summer fluctuates in the range of 14°C - 25°C.
Is it possible to swim in the Blavet River in Hennebont, and what are the available options for doing so?
Yes, it is possible to swim in the Blavet River in Hennebont. Available options include supervised beaches, riverside spots, and local swimming pools for safety and comfort.