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.
Current Water Temperature
Water Temperature in Hennebont today is 18.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| AUG 24 | 18.7°C | 20.0°C | |
| AUG 25 | 18.4°C | 20.0°C | |
| AUG 26 | 18.3°C | 20.0°C | |
| AUG 27 | 18.3°C | 20.0°C | |
| AUG 28 | 18.3°C | 20.0°C | |
| AUG 29 | 18.2°C | 20.0°C | |
| AUG 30 | 18.2°C | 20.0°C | |
| AUG 31 | 18.4°C | 20.0°C | |
| SEP 1 | 17.0°C | 18.3°C | |
| SEP 2 | 17.0°C | 18.3°C | |
| SEP 3 | 17.0°C | 18.2°C | |
| SEP 4 | 17.0°C | 18.1°C | |
| SEP 5 | 17.0°C | 18.1°C | |
| SEP 6 | 17.0°C | 18.0°C | |
| SEP 7 | 17.0°C | 17.9°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 |
|---|---|---|---|
| January | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 5°C | 9°C | 11°C |
| April | 9°C | 12°C | 15°C |
| May | 10°C | 15°C | 19°C |
| June | 14°C | 20°C | 24°C |
| July | 16°C | 20°C | 25°C |
| August | 16°C | 20°C | 25°C |
| September | 12°C | 17°C | 21°C |
| October | 9°C | 13°C | 16°C |
| November | 5°C | 9°C | 13°C |
| December | 2°C | 6°C | 11°C |
Hennebont: Weather Forecast
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September 5
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.