Ostrava — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Ostrava, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Ostrava today is 21.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 23 | 18.1°C | 18.0°C | |
| JUN 24 | 17.9°C | 18.0°C | |
| JUN 25 | 17.9°C | 18.0°C | |
| JUN 26 | 18.3°C | 18.0°C | |
| JUN 27 | 18.5°C | 18.0°C | |
| JUN 28 | 19.5°C | 18.0°C | |
| JUN 29 | 20.5°C | 18.0°C | |
| JUN 30 | 21.3°C | 18.0°C | |
| JUL 1 | 16.4°C | 21.3°C | |
| JUL 2 | 16.4°C | 21.1°C | |
| JUL 3 | 16.4°C | 20.8°C | |
| JUL 4 | 16.4°C | 20.6°C | |
| JUL 5 | 16.4°C | 20.3°C | |
| JUL 6 | 16.4°C | 20.0°C | |
| JUL 7 | 16.4°C | 19.8°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 | 1°C | 3°C | 5°C |
| February | 1°C | 5°C | 8°C |
| March | 2°C | 5°C | 8°C |
| April | 5°C | 10°C | 14°C |
| May | 8°C | 14°C | 19°C |
| June | 12°C | 18°C | 24°C |
| July | 13°C | 16°C | 21°C |
| August | 15°C | 20°C | 24°C |
| September | 12°C | 17°C | 21°C |
| October | 7°C | 10°C | 13°C |
| November | 4°C | 8°C | 11°C |
| December | 1°C | 3°C | 6°C |
Ostrava: Weather Forecast
July 1
July 2
July 3
July 4
Location & Local Information
Ostrava, a major city in the Moravian-Silesian region of the Czech Republic, is situated along the Oder River. In this urban section, the river tends to have moderate flow, and water temperatures remain relatively cool. During the summer months of July and August, temperatures in the river generally reach around 18–21 °C, which can be refreshing for brief swims or wading. In spring and early summer, the water is colder, usually ranging from 10 °C to 16 °C, making extended swimming less comfortable.
Swimming directly in the Oder within Ostrava is uncommon, as the riverbanks are largely urbanized and there are no official swimming zones or lifeguard services. Some locals may occasionally use calm sections of the river for quick dips, but caution is necessary due to variable currents, potential debris, and nearby boat traffic. The urban setting also limits easy access to suitable shores for casual swimming.
For a more comfortable and safer swimming experience, residents often visit nearby ponds, lakes, or recreational reservoirs outside the city. Overall, while the Oder in Ostrava provides a natural waterway and cooling respite, it is not ideal for regular swimming, with nearby managed water bodies offering better opportunities for leisure and recreation.