Aulne River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Aulne River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Aulne River today is 18.2°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 |
|---|---|---|---|
| JUL 15 | 19.1°C | 20.0°C | |
| JUL 16 | 17.9°C | 20.0°C | |
| JUL 17 | 17.9°C | 20.0°C | |
| JUL 18 | 17.9°C | 20.0°C | |
| JUL 19 | 17.8°C | 20.0°C | |
| JUL 20 | 17.7°C | 20.0°C | |
| JUL 21 | 18.2°C | 20.0°C | |
| JUL 22 | 18.2°C | 20.0°C | |
| JUL 23 | 20.0°C | 18.3°C | |
| JUL 24 | 20.0°C | 18.4°C | |
| JUL 25 | 20.0°C | 18.5°C | |
| JUL 26 | 20.0°C | 18.6°C | |
| JUL 27 | 20.0°C | 18.7°C | |
| JUL 28 | 20.0°C | 18.7°C | |
| JUL 29 | 20.0°C | 18.8°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 | 8°C | 11°C | 14°C |
| May | 9°C | 14°C | 18°C |
| June | 13°C | 18°C | 22°C |
| July | 16°C | 20°C | 25°C |
| August | 13°C | 18°C | 22°C |
| September | 11°C | 16°C | 20°C |
| October | 8°C | 11°C | 14°C |
| November | 5°C | 9°C | 12°C |
| December | 3°C | 7°C | 9°C |
Aulne River: Water Temperature by Location
Aulne River: Weather Forecast
July 23
July 24
July 25
July 26
July 27
July 28
Location & Local Information
Source:
• location Brittany
Mouth:
• location Atlantic Ocean
• coordinates 48°18′22″N 4°20′4″W
Length 144 km (89 mi)
The Aulne River, located in the Brittany region of France, flows through Finistère and is known for its tranquil scenery and recreational use. During the summer, water temperatures in the Aulne generally reach between 15°C and 20°C (59°F to 68°F), making it an appealing option for swimming, particularly in slower-moving sections where the current is more manageable. In the winter, temperatures can drop significantly, averaging around 5°C to 8°C (41°F to 46°F), which is typically too cold for comfortable swimming but may attract experienced cold-water swimmers.
Swimming is common in designated areas along the river, especially near small towns such as Châteaulin, where the river widens and calms. It is essential, however, for swimmers to remain cautious, as some parts of the Aulne may have unexpected currents, particularly after rainfall. Additionally, while water quality is generally suitable for swimming, it is recommended to check local advisories during the rainy season, as runoff can temporarily impact the river’s cleanliness.