Piešťany — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Piešťany, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Piešťany today is 18.1°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 |
|---|---|---|---|
| JUN 3 | 17.7°C | 18.0°C | |
| JUN 4 | 17.9°C | 18.0°C | |
| JUN 5 | 17.5°C | 18.0°C | |
| JUN 6 | 17.5°C | 18.0°C | |
| JUN 7 | 17.0°C | 18.0°C | |
| JUN 8 | 17.4°C | 18.0°C | |
| JUN 10 | 18.1°C | 18.0°C | |
| JUN 11 | 18.0°C | 18.1°C | |
| JUN 12 | 18.0°C | 18.1°C | |
| JUN 13 | 18.0°C | 18.1°C | |
| JUN 14 | 18.0°C | 18.1°C | |
| JUN 15 | 18.0°C | 18.1°C | |
| JUN 16 | 18.0°C | 18.1°C | |
| JUN 17 | 18.0°C | 18.1°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 | 6°C | 9°C |
| March | 3°C | 7°C | 11°C |
| April | 6°C | 10°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 | 7°C | 11°C |
| December | 2°C | 6°C | 9°C |
Piešťany: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
In Piešťany, the river Váh is a significant part of the landscape, flowing alongside the famous Spa Island and forming the Sĺňava water reservoir just south of the city. As a major central European river, its temperature varies widely throughout the year. In the summer months, particularly in July and August, the water temperature of the Váh in the Piešťany area, especially in the larger, more stagnant body of the Sĺňava reservoir, can rise to pleasant bathing levels, often reaching 22−25∘C on the warmest days. This is the only period when the water is genuinely warm enough for extended, comfortable recreational use by the general public. Outside of this peak summer period, the water remains notably cooler.
While the Váh itself is a dominant feature, direct swimming in the main river channel or unregulated spots near Piešťany is generally not recommended due to safety concerns regarding strong currents and the nature of the riverbed. Instead, most aquatic recreation is focused on the Sĺňava reservoir, where boating, paddleboarding, and designated areas around the reservoir's banks offer safer access. Furthermore, Piešťany is famous for its thermal springs and medicinal mud, with several dedicated facilities like the Kúpalisko Eva offering thermal pools with much higher, controlled temperatures, often around 27−38∘C. Thus, for a pleasant and therapeutic swim, the thermal and reservoir facilities are the popular choice over the main river.