Una River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Una River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Una River today is 26.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 6 | 26.6°C | 20.7°C | |
| AUG 7 | 26.8°C | 20.7°C | |
| AUG 8 | 26.8°C | 20.7°C | |
| AUG 9 | 26.8°C | 20.7°C | |
| AUG 10 | 26.8°C | 20.7°C | |
| AUG 11 | 26.6°C | 20.7°C | |
| AUG 12 | 26.5°C | 20.7°C | |
| AUG 13 | 26.5°C | 20.7°C | |
| AUG 14 | 20.7°C | 26.0°C | |
| AUG 15 | 20.7°C | 25.7°C | |
| AUG 16 | 20.7°C | 25.5°C | |
| AUG 17 | 20.7°C | 25.2°C | |
| AUG 18 | 20.7°C | 24.9°C | |
| AUG 19 | 20.7°C | 24.6°C | |
| AUG 20 | 20.7°C | 24.3°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 | 7°C | 12°C | 15°C |
| May | 9°C | 14°C | 20°C |
| June | 13°C | 18°C | 24°C |
| July | 15°C | 20°C | 26°C |
| August | 15°C | 21°C | 27°C |
| September | 12°C | 17°C | 21°C |
| October | 10°C | 14°C | 17°C |
| November | 6°C | 10°C | 13°C |
| December | 4°C | 8°C | 11°C |
Una River: Water Temperature by Location
Una River: Weather Forecast
August 14
August 15
August 16
August 17
Location & Local Information
Source Vrelo Une
• location Donja Suvaja
• coordinates 44.399457°N 16.103796°E
• elevation 358,850 m (1,177,330 ft)
Mouth Sava
• location Jasenovac
• coordinates 45.270°N 16.918°E
• elevation 95 m (312 ft)
Length 214.6 km (133.3 mi)
The Una River, which partly flows through Croatia along the border with Bosnia and Herzegovina, is famous for its clear and cold waters. Even in the height of summer, the temperature of the Una usually stays between 18–22°C, which feels refreshing compared to many other rivers and lakes in the region. The coolness comes from its source in the mountains and the continuous flow through rocky terrain, keeping the water clean and lively.
Swimming in the Una is possible and often enjoyed during hot summer days, though the water is noticeably cooler than in lowland rivers. In calmer sections with accessible banks, locals and visitors take dips to cool off, while stronger currents are better suited for activities like rafting rather than swimming. The beauty of the river, with its turquoise color and natural surroundings, makes swimming here not only refreshing but also a unique experience.