Lake Mandrensko — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Mandrensko, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Mandrensko today is 21.4°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 | 22.7°C | 22.0°C | |
| SEP 14 | 22.7°C | 22.0°C | |
| SEP 15 | 22.5°C | 22.0°C | |
| SEP 16 | 22.3°C | 22.0°C | |
| SEP 17 | 22.0°C | 22.0°C | |
| SEP 18 | 21.8°C | 22.0°C | |
| SEP 19 | 21.6°C | 22.0°C | |
| SEP 20 | 21.4°C | 22.0°C | |
| SEP 21 | 22.0°C | 21.4°C | |
| SEP 22 | 22.0°C | 21.5°C | |
| SEP 23 | 22.0°C | 21.5°C | |
| SEP 24 | 22.0°C | 21.5°C | |
| SEP 25 | 22.0°C | 21.6°C | |
| SEP 26 | 22.0°C | 21.6°C | |
| SEP 27 | 22.0°C | 21.6°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 | 4°C | 9°C | 14°C |
| February | 4°C | 10°C | 14°C |
| March | 5°C | 11°C | 17°C |
| April | 9°C | 15°C | 19°C |
| May | 11°C | 18°C | 24°C |
| June | 17°C | 22°C | 27°C |
| July | 20°C | 25°C | 30°C |
| August | 20°C | 25°C | 30°C |
| September | 17°C | 22°C | 27°C |
| October | 14°C | 19°C | 22°C |
| November | 10°C | 14°C | 18°C |
| December | 5°C | 10°C | 14°C |
Lake Mandrensko: Water Temperature by Location
Lake Mandrensko: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Lake Mandrensko (Язовир Мандра) is a shallow coastal reservoir near Burgas whose water temperature varies with the seasons, local weather and inflows. In winter the surface typically cools to around 0–6 °C (32–43 °F), while spring warming brings temperatures up to roughly 8–16 °C (46–61 °F). In summer the shallows can reach their warmest, commonly 22–28 °C (72–82 °F) on hot days, and in autumn surface temperatures usually fall back to about 12–20 °C (54–68 °F). Short-term swings are common after heat waves, storms or heavy freshwater inflows, and deeper or more shaded bays may remain several degrees colder than exposed shallows.
Swimming at Mandrensko is not broadly promoted as an organized bathing location; locals may swim there in summer, but access and conditions vary. Parts of the reservoir and adjacent wetlands have environmental protections for birdlife, and areas around the dam, intake structures or busy fishing spots are restricted for safety. Water quality can fluctuate because of agricultural runoff, urban discharges and reed-choked littoral zones, so authorities sometimes advise against bathing in specific places. Anyone considering swimming should follow local signage, check with municipal authorities about current restrictions and be mindful of hazards such as sudden drop-offs, underwater vegetation and boat traffic.