Opava — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Opava, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Opava today is 18.4°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 |
|---|---|---|---|
| AUG 24 | 18.9°C | 19.6°C | |
| AUG 25 | 18.4°C | 19.6°C | |
| AUG 26 | 17.6°C | 19.6°C | |
| AUG 27 | 17.0°C | 19.6°C | |
| AUG 28 | 17.5°C | 19.6°C | |
| AUG 29 | 18.6°C | 19.6°C | |
| AUG 30 | 18.6°C | 19.6°C | |
| AUG 31 | 18.4°C | 19.6°C | |
| SEP 1 | 17.6°C | 18.4°C | |
| SEP 2 | 17.6°C | 18.3°C | |
| SEP 3 | 17.6°C | 18.3°C | |
| SEP 4 | 17.6°C | 18.2°C | |
| SEP 5 | 17.6°C | 18.2°C | |
| SEP 6 | 17.6°C | 18.2°C | |
| SEP 7 | 17.6°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 | 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 | 16°C | 20°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: Weather Forecast
September 1
September 2
September 3
September 4
Location & Local Information
Opava is a historic city in the Moravian-Silesian region of the Czech Republic, located along the Opava River. In this part of the river, the water is generally calm but remains relatively cool throughout the year. During the summer months of July and August, surface temperatures near Opava typically reach around 18–21 °C, providing a refreshing option for brief dips or wading. In spring and early summer, the water is cooler, usually between 10 °C and 16 °C, making extended swimming less comfortable.
Swimming directly in the Opava River within the city is limited, as the riverbanks are mostly urbanized and there are no formal swimming areas or lifeguard services. Some locals may occasionally use calmer stretches for quick cooling-off dips, but caution is necessary due to variable currents and occasional boat or water traffic. The river is more suited for wading, relaxing by the water, or other recreational activities rather than long swims.
For safer and more comfortable swimming, residents often visit nearby ponds, lakes, or recreational reservoirs outside the city, which tend to have warmer and more accessible water. Overall, the Opava River in the city provides a natural and quiet spot for short-term cooling and relaxation, but it is not a primary location for structured swimming.