Bratislava — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Bratislava, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Bratislava 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 |
|---|---|---|---|
| JUN 3 | 18.7°C | 18.0°C | |
| JUN 4 | 19.0°C | 18.0°C | |
| JUN 5 | 18.5°C | 18.0°C | |
| JUN 6 | 18.5°C | 18.0°C | |
| JUN 7 | 18.3°C | 18.0°C | |
| JUN 8 | 18.8°C | 18.0°C | |
| JUN 10 | 19.2°C | 18.0°C | |
| JUN 11 | 18.0°C | 19.1°C | |
| JUN 12 | 18.0°C | 19.1°C | |
| JUN 13 | 18.0°C | 19.0°C | |
| JUN 14 | 18.0°C | 19.0°C | |
| JUN 15 | 18.0°C | 18.9°C | |
| JUN 16 | 18.0°C | 18.8°C | |
| JUN 17 | 18.0°C | 18.8°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 | 0°C | 5°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 4°C | 8°C | 11°C |
| April | 6°C | 11°C | 14°C |
| May | 9°C | 14°C | 19°C |
| June | 13°C | 18°C | 22°C |
| July | 16°C | 20°C | 25°C |
| August | 13°C | 18°C | 22°C |
| September | 11°C | 16°C | 20°C |
| October | 8°C | 11°C | 14°C |
| November | 3°C | 8°C | 11°C |
| December | 1°C | 6°C | 9°C |
Bratislava: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
In Bratislava, the Danube River flows wide and strong, shaping much of the city’s character. The water temperature here changes significantly with the seasons. During winter and early spring, the river is very cold, often below 10 °C, making swimming impractical. In summer, especially in July and August, the Danube can warm up to around 20–24 °C, though it still remains cooler than nearby lakes or smaller rivers. The flow of the river and its depth mean that the temperature is less predictable and can fluctuate after rain or when snowmelt increases the current.
Swimming in the Danube directly in Bratislava is not officially recommended due to strong currents, shipping traffic, and varying water quality. Locals and visitors who wish to swim usually prefer lakes and gravel pits near the city, where the water warms up more quickly and conditions are safer. Still, the Danube in Bratislava is popular for water sports like kayaking, stand-up paddling, and cruises, offering a refreshing connection to nature right in the capital.