Kardzhali Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Kardzhali Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Kardzhali Reservoir today is 22.1°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 |
|---|---|---|---|
| SEP 13 | 23.9°C | 22.0°C | |
| SEP 14 | 23.8°C | 22.0°C | |
| SEP 15 | 23.0°C | 22.0°C | |
| SEP 16 | 22.9°C | 22.0°C | |
| SEP 17 | 22.6°C | 22.0°C | |
| SEP 18 | 22.6°C | 22.0°C | |
| SEP 19 | 22.5°C | 22.0°C | |
| SEP 20 | 21.7°C | 22.0°C | |
| SEP 21 | 22.0°C | 22.1°C | |
| SEP 22 | 22.0°C | 22.1°C | |
| SEP 23 | 22.0°C | 22.1°C | |
| SEP 24 | 22.0°C | 22.1°C | |
| SEP 25 | 22.0°C | 22.1°C | |
| SEP 26 | 22.0°C | 22.1°C | |
| SEP 27 | 22.0°C | 22.1°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 | 3°C | 8°C | 12°C |
| February | 4°C | 8°C | 12°C |
| March | 6°C | 11°C | 15°C |
| April | 9°C | 14°C | 19°C |
| May | 10°C | 18°C | 25°C |
| June | 17°C | 22°C | 27°C |
| July | 19°C | 24°C | 29°C |
| August | 20°C | 25°C | 30°C |
| September | 17°C | 22°C | 27°C |
| October | 13°C | 18°C | 21°C |
| November | 10°C | 14°C | 18°C |
| December | 4°C | 8°C | 12°C |
Kardzhali Reservoir: Water Temperature by Location
Kardzhali Reservoir: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Kardzhali Reservoir (Язовир Кърджали) is a large artificial lake in southern Bulgaria whose surface temperature varies strongly through the year depending on air temperature, depth and shelteredness. In spring the water is generally cool, roughly 8–16 °C (46–61 °F) as the lake recovers from winter chill. By summer surface temperatures commonly reach about 20–26 °C (68–79 °F) in July and August in sun-exposed bays, while deeper or shaded areas stay several degrees cooler. In autumn temperatures fall back to roughly 10–18 °C (50–64 °F) and in winter the surface can approach freezing in cold spells, typically around 0–6 °C (32–43 °F), with ice possible in sheltered inlets during prolonged cold periods.
Swimming at Kardzhali Reservoir is practiced by locals and visitors, particularly in summer when surface waters are pleasant, but it is mostly informal rather than organized beach bathing. Officially some zones — notably near the dam, spillways and active boating channels — are restricted for safety because of strong currents, sudden depth changes and boat traffic. Water quality is generally acceptable for recreation but can vary seasonally and there are few lifeguards, so swimmers should choose sheltered bays, avoid restricted areas, be aware of cold thermoclines and follow local signage and common-sense safety precautions.