Rižana River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Rižana River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Rižana River today is 21.8°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 |
|---|---|---|---|
| AUG 5 | 22.1°C | 19.0°C | |
| AUG 6 | 22.2°C | 19.0°C | |
| AUG 7 | 21.9°C | 19.0°C | |
| AUG 8 | 22.0°C | 19.0°C | |
| AUG 9 | 22.2°C | 19.0°C | |
| AUG 10 | 22.2°C | 19.0°C | |
| AUG 11 | 21.5°C | 19.0°C | |
| AUG 12 | 21.6°C | 19.0°C | |
| AUG 13 | 19.0°C | 21.7°C | |
| AUG 14 | 19.0°C | 21.5°C | |
| AUG 15 | 19.0°C | 21.4°C | |
| AUG 16 | 19.0°C | 21.2°C | |
| AUG 17 | 19.0°C | 21.1°C | |
| AUG 18 | 19.0°C | 21.0°C | |
| AUG 19 | 19.0°C | 20.8°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 | 4°C | 8°C | 11°C |
| February | 4°C | 8°C | 10°C |
| March | 7°C | 10°C | 13°C |
| April | 8°C | 12°C | 15°C |
| May | 9°C | 14°C | 18°C |
| June | 13°C | 18°C | 22°C |
| July | 15°C | 19°C | 24°C |
| August | 15°C | 19°C | 24°C |
| September | 12°C | 17°C | 21°C |
| October | 10°C | 14°C | 17°C |
| November | 7°C | 10°C | 13°C |
| December | 5°C | 9°C | 11°C |
Rižana River: Water Temperature by Location
Rižana River: Weather Forecast
August 13
August 14
August 15
August 16
August 17
Location & Local Information
The Rižana River flows through the coastal region of southwestern Slovenia and is best known as an important source of drinking water for the city of Koper and its surroundings. Because of its karstic character and short length, the river maintains relatively cool temperatures, often between 12°C and 18°C in the warmer months. This makes it refreshing but not particularly warm for swimming, so it is less of a typical bathing river compared to Slovenia’s lakes or wider rivers.
Still, on hot summer days, locals sometimes take short dips in the calmer stretches of the Rižana. The water is clear, and the natural setting provides a peaceful atmosphere, though swimming is not very common due to the river’s role as a water supply and the relatively low water temperatures. More often, people enjoy the river banks for walks, picnics, and the coolness it brings to the landscape.