Trebišnjica River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Trebišnjica River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Trebišnjica River today is 19.1°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 |
|---|---|---|---|
| SEP 15 | 19.7°C | 17.7°C | |
| SEP 16 | 19.3°C | 17.7°C | |
| SEP 17 | 19.9°C | 17.7°C | |
| SEP 18 | 19.6°C | 17.7°C | |
| SEP 19 | 19.7°C | 17.7°C | |
| SEP 20 | 20.1°C | 17.7°C | |
| SEP 21 | 20.0°C | 17.7°C | |
| SEP 22 | 19.1°C | 17.7°C | |
| SEP 23 | 17.7°C | 19.0°C | |
| SEP 24 | 17.7°C | 19.0°C | |
| SEP 25 | 17.7°C | 18.9°C | |
| SEP 26 | 17.7°C | 18.8°C | |
| SEP 27 | 17.7°C | 18.8°C | |
| SEP 28 | 17.7°C | 18.7°C | |
| SEP 29 | 17.7°C | 18.6°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 | 5°C | 9°C | 11°C |
| February | 5°C | 9°C | 11°C |
| March | 7°C | 10°C | 13°C |
| April | 8°C | 12°C | 15°C |
| May | 10°C | 15°C | 19°C |
| June | 13°C | 18°C | 22°C |
| July | 16°C | 20°C | 25°C |
| August | 16°C | 21°C | 26°C |
| September | 13°C | 18°C | 23°C |
| October | 11°C | 15°C | 18°C |
| November | 8°C | 11°C | 14°C |
| December | 5°C | 9°C | 11°C |
Trebišnjica River: Water Temperature by Location
Trebišnjica River: Weather Forecast
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Source Trebišnjica wellsprings group is a system consisting of 3 large karst spring zones, with Dejanova Pećina as primer wellspring
Length 96.5 km (60.0 mi)
The Trebišnjica River, running through Trebinje in Herzegovina, is one of the world's longest sinking rivers, characterized by its karst environment and hydro-power utilization. The river's original cold nature is influenced by the surrounding reservoirs (like Bileća Lake). In winter, the water is cool, generally maintaining temperatures between 12∘C and 14∘C near Trebinje, rarely freezing. However, during the summer, the wide, slower sections near the city allow the surface water to warm significantly, commonly reaching a pleasant range of 22∘C to 26∘C in July and August.
Swimming in the Trebišnjica River is a very popular and culturally accepted summer activity in Trebinje. Due to the river's calm flow and clean water quality—often officially monitored and rated as excellent, especially in controlled areas—it is considered a safe destination for public recreation. The city has established popular, maintained bathing spots along the riverbanks, such as those near the city center, where locals and tourists enjoy swimming, sunbathing, and various water sports during the warm season.