Batak Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Batak Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Batak Reservoir today is 18.2°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 | 16.7°C | 18.0°C | |
| JUN 4 | 16.7°C | 18.0°C | |
| JUN 5 | 16.7°C | 18.0°C | |
| JUN 6 | 17.1°C | 18.0°C | |
| JUN 7 | 17.1°C | 18.0°C | |
| JUN 8 | 17.1°C | 18.0°C | |
| JUN 10 | 18.2°C | 18.0°C | |
| JUN 11 | 18.0°C | 18.2°C | |
| JUN 12 | 18.0°C | 18.2°C | |
| JUN 13 | 18.0°C | 18.2°C | |
| JUN 14 | 18.0°C | 18.2°C | |
| JUN 15 | 18.0°C | 18.2°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 | 8°C |
| February | 1°C | 5°C | 8°C |
| March | 2°C | 7°C | 11°C |
| April | 5°C | 10°C | 14°C |
| May | 7°C | 14°C | 21°C |
| June | 12°C | 18°C | 23°C |
| July | 14°C | 20°C | 25°C |
| August | 16°C | 21°C | 26°C |
| September | 12°C | 18°C | 23°C |
| October | 9°C | 13°C | 17°C |
| November | 5°C | 10°C | 13°C |
| December | 1°C | 5°C | 8°C |
Batak Reservoir: Water Temperature by Location
Batak Reservoir: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Batak Reservoir (язовир Батак) is a mountain-fed lake in southern Bulgaria whose water remains relatively cool year-round. In winter the surface can approach freezing, typically around 0–4 °C (32–39 °F) and ice cover is possible in cold spells. Spring brings gradual warming to roughly 4–12 °C (39–54 °F). In summer, sheltered bays and shallower edges commonly reach about 18–25 °C (64–77 °F), though deeper or wind-exposed areas stay several degrees cooler; late summer peaks can occasionally be a degree or two higher. Autumn sees steady cooling, with temperatures generally between 10–18 °C (50–64 °F) depending on air temperature and recent rainfall.
Swimming at Batak is a popular summer activity in suitable bays and near leisure sites, and many visitors swim informally when conditions are calm and water is warmest. Official restrictions may apply near the dam, intake structures or boating channels for safety and water-management reasons, and organized beaches may lack lifeguards. Because the reservoir is deep and receives cool inflows, swimmers should be cautious about cold shock and sudden temperature changes, avoid areas with motorboat traffic, and follow local signs and regulations that protect both safety and water resources.