Dehtář jezero — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Dehtář jezero, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Dehtář jezero today is 20°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 | 20.0°C | 20.0°C | |
| AUG 25 | 19.2°C | 20.0°C | |
| AUG 26 | 19.0°C | 20.0°C | |
| AUG 27 | 19.1°C | 20.0°C | |
| AUG 28 | 19.6°C | 20.0°C | |
| AUG 29 | 20.2°C | 20.0°C | |
| AUG 30 | 20.4°C | 20.0°C | |
| AUG 31 | 20.0°C | 20.0°C | |
| SEP 1 | 17.6°C | 19.9°C | |
| SEP 2 | 17.6°C | 19.8°C | |
| SEP 3 | 17.6°C | 19.6°C | |
| SEP 4 | 17.6°C | 19.5°C | |
| SEP 5 | 17.6°C | 19.4°C | |
| SEP 6 | 17.6°C | 19.3°C | |
| SEP 7 | 17.6°C | 19.2°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 | 5°C | 9°C |
| February | 1°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 | 14°C | 19°C | 24°C |
| July | 16°C | 20°C | 24°C |
| August | 15°C | 20°C | 25°C |
| September | 11°C | 18°C | 19°C |
| October | 8°C | 13°C | 16°C |
| November | 2°C | 10°C | 16°C |
| December | 1°C | 5°C | 8°C |
Dehtář jezero: Water Temperature by Location
Dehtář jezero: Weather Forecast
September 1
September 2
September 3
September 4
Location & Local Information
Dehtář jezero is a medium-sized reservoir located near the city of České Budějovice in the South Bohemian Region of the Czech Republic. The lake is popular among locals for recreational activities, especially during the summer months. Water temperatures in Dehtář jezero typically rise to around 22–24 °C in July and August, creating comfortable conditions for swimming, wading, and casual water sports. The lake’s shores are accessible in several areas, allowing swimmers to enter the water easily, and the calm waters make it suitable for families and children.
Swimming at Dehtář jezero is mostly informal, with natural banks and some small sandy spots rather than fully developed beaches. Visitors often combine swimming with picnicking, sunbathing, or boating, as the lake is also used for small boats and fishing. The water is generally calm, which makes it ideal for those looking for a relaxed swimming experience without strong currents or waves.
Outside the peak summer season, water temperatures drop noticeably. In May or September, the lake usually stays around 15–17 °C, which is cool for long swims but still fine for brief dips or wading near the shore. Even when the water is colder, the lake remains a pleasant destination for nature walks, birdwatching, or simply enjoying the scenic surroundings of South Bohemia.