Opava River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Opava River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Opava River today is 21.5°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 |
|---|---|---|---|
| AUG 4 | 21.5°C | 19.2°C | |
| AUG 5 | 22.5°C | 19.2°C | |
| AUG 6 | 23.0°C | 19.2°C | |
| AUG 7 | 23.3°C | 19.2°C | |
| AUG 8 | 23.1°C | 19.2°C | |
| AUG 9 | 22.5°C | 19.2°C | |
| AUG 10 | 21.9°C | 19.2°C | |
| AUG 12 | 19.2°C | 21.4°C | |
| AUG 13 | 19.2°C | 21.3°C | |
| AUG 14 | 19.2°C | 21.2°C | |
| AUG 15 | 19.2°C | 21.0°C | |
| AUG 16 | 19.2°C | 20.9°C | |
| AUG 17 | 19.2°C | 20.8°C | |
| AUG 18 | 19.2°C | 20.7°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 | 0°C | 5°C | 9°C |
| February | 0°C | 5°C | 9°C |
| March | 3°C | 7°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 12°C | 17°C | 23°C |
| July | 15°C | 20°C | 24°C |
| August | 15°C | 19°C | 24°C |
| September | 11°C | 18°C | 19°C |
| October | 8°C | 13°C | 16°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Opava River: Water Temperature by Location
Opava River: Weather Forecast
August 12
August 13
August 14
August 15
August 16
August 17
Location & Local Information
Source Černá Opava
• location Zlaté Hory, Hrubý Jeseník
• elevation 1,062 m (3,484 ft)
Mouth:
• location Oder
• elevation 207 m (679 ft)
Length 129.3 km (80.3 mi)
The Opava River flows through the Moravian-Silesian region of the Czech Republic, passing through towns and rural areas alike. In general, the river’s water is cool, especially in its upper reaches where it is fed by smaller streams and mountain runoff. During the warmest months of July and August, surface water temperatures typically reach around 17–21 °C, which can be refreshing for wading or short dips. In spring and early summer, the water is noticeably colder, often ranging from 10 °C to 16 °C, making extended swimming less comfortable.
Swimming directly in the Opava River is possible in calmer sections, but opportunities are limited because the riverbanks are often natural and not developed for recreational use. There are few formal swimming areas or lifeguard services along the river, so caution is important, particularly in areas with stronger currents or variable depths. Despite this, locals sometimes use quiet stretches for casual cooling off during hot summer days.
Overall, the Opava River offers a natural and tranquil setting for short swims and water-based relaxation, especially in the warmest months. For more reliable and safer swimming experiences, nearby ponds, reservoirs, or recreational lakes are generally preferred, but the river provides a quiet, scenic option for those seeking a natural water environment.