Banja Luka — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Banja Luka, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Banja Luka today is 19.2°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 12 | 22.3°C | 17.8°C | |
| SEP 13 | 21.0°C | 17.8°C | |
| SEP 14 | 20.5°C | 17.8°C | |
| SEP 15 | 20.4°C | 17.8°C | |
| SEP 16 | 18.4°C | 17.8°C | |
| SEP 17 | 18.0°C | 17.8°C | |
| SEP 18 | 18.2°C | 17.8°C | |
| SEP 19 | 19.2°C | 17.8°C | |
| SEP 20 | 17.8°C | 19.1°C | |
| SEP 21 | 17.8°C | 19.1°C | |
| SEP 22 | 17.8°C | 19.0°C | |
| SEP 23 | 17.8°C | 18.9°C | |
| SEP 24 | 17.8°C | 18.9°C | |
| SEP 25 | 17.8°C | 18.8°C | |
| SEP 26 | 17.8°C | 18.7°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 | 3°C | 7°C | 10°C |
| February | 4°C | 8°C | 10°C |
| March | 6°C | 9°C | 12°C |
| April | 6°C | 11°C | 15°C |
| May | 10°C | 15°C | 20°C |
| June | 12°C | 18°C | 25°C |
| July | 15°C | 20°C | 26°C |
| August | 15°C | 21°C | 28°C |
| September | 12°C | 18°C | 24°C |
| October | 9°C | 13°C | 16°C |
| November | 4°C | 9°C | 13°C |
| December | 4°C | 7°C | 10°C |
Banja Luka: Weather Forecast
September 20
September 21
September 22
September 23
September 24
Location & Local Information
Banja Luka, located in northern Bosnia and Herzegovina, lies along the banks of the Vrbas River, which plays a central role in the city’s natural and cultural life. The Vrbas has a clear, fast flow and originates in the mountains, which affects its water temperature throughout the year. In spring, the water temperature ranges from 10 to 14 °C, while in summer it warms to 20–24 °C, reaching up to 25 °C in the calm sections during the hottest days. In autumn, the temperature drops to 14–18 °C, and in winter it often falls below 6 °C. Despite the river’s freshness, its clean water and picturesque canyon make it ideal for outdoor recreation.
Swimming in the Vrbas is allowed and quite popular in Banja Luka, especially in summer. The most visited spots are along calmer parts of the river, where the current is gentle and the temperature comfortable. During July and August, locals and visitors swim, sunbathe, and enjoy water sports like kayaking and rafting. The combination of mountain-fed coolness and urban accessibility makes the Vrbas an important symbol of Banja Luka’s lifestyle, offering both refreshment and adventure within the city’s natural setting.