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 17.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 |
|---|---|---|---|
| SEP 14 | 18.8°C | 17.0°C | |
| SEP 15 | 17.7°C | 17.0°C | |
| SEP 16 | 17.5°C | 17.0°C | |
| SEP 17 | 17.3°C | 17.0°C | |
| SEP 18 | 18.0°C | 17.0°C | |
| SEP 19 | 17.6°C | 17.0°C | |
| SEP 20 | 17.8°C | 17.0°C | |
| SEP 21 | 17.4°C | 17.0°C | |
| SEP 22 | 17.0°C | 17.6°C | |
| SEP 23 | 17.0°C | 17.5°C | |
| SEP 24 | 17.0°C | 17.5°C | |
| SEP 25 | 17.0°C | 17.5°C | |
| SEP 26 | 17.0°C | 17.5°C | |
| SEP 27 | 17.0°C | 17.4°C | |
| SEP 28 | 17.0°C | 17.4°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
September 22
September 23
September 24
September 25
September 26
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.