Ognyanovo Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Ognyanovo Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Ognyanovo Reservoir today is 20.7°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 |
|---|---|---|---|
| JUL 3 | 22.4°C | 22.0°C | |
| JUL 4 | 22.2°C | 22.0°C | |
| JUL 5 | 22.2°C | 22.0°C | |
| JUL 6 | 21.9°C | 22.0°C | |
| JUL 7 | 21.8°C | 22.0°C | |
| JUL 8 | 20.8°C | 22.0°C | |
| JUL 9 | 20.8°C | 22.0°C | |
| JUL 10 | 20.8°C | 22.0°C | |
| JUL 11 | 22.0°C | 20.8°C | |
| JUL 12 | 22.0°C | 20.8°C | |
| JUL 13 | 22.0°C | 20.9°C | |
| JUL 14 | 22.0°C | 21.0°C | |
| JUL 15 | 22.0°C | 21.0°C | |
| JUL 16 | 22.0°C | 21.1°C | |
| JUL 17 | 22.0°C | 21.2°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 | 2°C | 7°C | 11°C |
| February | 3°C | 7°C | 11°C |
| March | 4°C | 9°C | 13°C |
| April | 6°C | 11°C | 15°C |
| May | 8°C | 15°C | 21°C |
| June | 13°C | 19°C | 24°C |
| July | 17°C | 22°C | 27°C |
| August | 17°C | 22°C | 27°C |
| September | 13°C | 19°C | 24°C |
| October | 11°C | 15°C | 19°C |
| November | 6°C | 10°C | 14°C |
| December | 3°C | 7°C | 11°C |
Ognyanovo Reservoir: Water Temperature by Location
Ognyanovo Reservoir: Weather Forecast
July 11
July 12
July 13
July 14
July 15
July 16
Location & Local Information
Ognyanovo Reservoir (Язовир Огняново) typically shows clear seasonal variation in surface water temperature. In spring, from March to May, surface temperatures generally range from about 8–16 °C (46–61 °F) as the water warms after winter. Peak summer temperatures in July and August often reach roughly 20–27 °C (68–81 °F) at the surface on warm years, while early autumn in September–October cools back to approximately 15–22 °C (59–72 °F). In late autumn and winter the reservoir can fall to near freezing or just above, about 0–6 °C (32–43 °F), and shallow bays may even freeze in cold spells. Actual temperature at any time depends on recent weather, wind, depth and inflow, so readings can vary locally.
Swimming is practiced informally at Ognyanovo in the warm months when surface temperatures are comfortable, but it is not a formally supervised bathing beach and local rules may restrict access because it is a managed reservoir used for water supply, irrigation and fishing. That means there can be safety hazards such as steep drop-offs, submerged structures, boat traffic and variable water quality; there are often no lifeguards, and signage or municipal regulations may prohibit swimming in parts of the reservoir. Visitors should check local guidance, observe posted signs and take usual precautions if entering the water.