Arz River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Arz River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Arz River today is 21.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 | 22.9°C | 20.0°C | |
| JUL 16 | 21.4°C | 20.0°C | |
| JUL 17 | 21.4°C | 20.0°C | |
| JUL 18 | 21.4°C | 20.0°C | |
| JUL 19 | 21.3°C | 20.0°C | |
| JUL 20 | 21.2°C | 20.0°C | |
| JUL 21 | 21.1°C | 20.0°C | |
| JUL 22 | 21.1°C | 20.0°C | |
| JUL 23 | 20.0°C | 21.0°C | |
| JUL 24 | 20.0°C | 21.0°C | |
| JUL 25 | 20.0°C | 20.9°C | |
| JUL 26 | 20.0°C | 20.9°C | |
| JUL 27 | 20.0°C | 20.8°C | |
| JUL 28 | 20.0°C | 20.8°C | |
| JUL 29 | 20.0°C | 20.7°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 | 15°C | 19°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 | 9°C |
Arz River: Water Temperature by Location
Arz River: Weather Forecast
July 23
July 24
July 25
Location & Local Information
Source:
• location Plaudren
• coordinates 47°44′35″N 02°43′52″W
• elevation 130 m (430 ft)
Mouth:
• location Oust
• coordinates 47°39′21″N 02°06′40″W
• elevation 2 metres (6.6 ft)
Length 66.4 km (41.3 mi)
Basin size 270 km2 (100 sq mi)
Discharge:
• average 2.26 m3/s (80 cu ft/s)
The Arz River in Brittany, France, is a smaller tributary of the Vilaine, offering calm and scenic waters as it flows through the Breton countryside. In summer, the river’s water temperature generally ranges from 17°C to 20°C (63°F to 68°F), making it refreshing but comfortable for recreational activities. However, the river is not particularly popular for swimming, as it primarily flows through rural areas and lacks designated swimming zones. Still, locals may enjoy wading or quick dips in calmer stretches, especially when the weather is warm, though it’s best to confirm with local authorities on safe swimming spots.
The Arz is more frequently used for activities like fishing and kayaking due to its gentle currents and shallow areas. For those who want a scenic experience, canoeing or paddleboarding along its tranquil waters can offer a closer view of the lush Breton landscape. Visitors are encouraged to respect the natural habitat and avoid swimming in areas not specifically designated for that purpose, as parts of the river may not be monitored for safety.