Pyasachnik Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Pyasachnik Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Pyasachnik Reservoir today is 18.5°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 |
|---|---|---|---|
| OCT 4 | 19.6°C | 18.0°C | |
| OCT 5 | 19.6°C | 18.0°C | |
| OCT 6 | 18.8°C | 18.0°C | |
| OCT 7 | 19.2°C | 18.0°C | |
| OCT 8 | 19.0°C | 18.0°C | |
| OCT 9 | 18.3°C | 18.0°C | |
| OCT 10 | 18.1°C | 18.0°C | |
| OCT 11 | 18.5°C | 18.0°C | |
| OCT 12 | 18.0°C | 18.5°C | |
| OCT 13 | 18.0°C | 18.5°C | |
| OCT 14 | 18.0°C | 18.4°C | |
| OCT 15 | 18.0°C | 18.4°C | |
| OCT 16 | 18.0°C | 18.4°C | |
| OCT 17 | 18.0°C | 18.4°C | |
| OCT 18 | 18.0°C | 18.3°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 | 13°C |
| February | 4°C | 9°C | 13°C |
| March | 6°C | 11°C | 15°C |
| April | 9°C | 14°C | 18°C |
| May | 10°C | 17°C | 23°C |
| June | 16°C | 21°C | 26°C |
| July | 19°C | 24°C | 29°C |
| August | 19°C | 24°C | 29°C |
| September | 16°C | 21°C | 26°C |
| October | 13°C | 18°C | 21°C |
| November | 9°C | 13°C | 17°C |
| December | 5°C | 9°C | 13°C |
Pyasachnik Reservoir: Water Temperature by Location
Pyasachnik Reservoir: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Pyasachnik Reservoir (Язовир Пясъчник) typically follows the seasonal temperature pattern of small inland Bulgarian reservoirs. In spring, surface temperatures usually rise from about 8–15 °C (46–59 °F) as the water responds to warming air and inflows. During summer, when conditions are warm and sunny, surface temperatures commonly reach 20–26 °C (68–79 °F), with occasional shallow areas warming to around 28 °C (82 °F) in heatwaves. Autumn sees a steady cooling to roughly 12–18 °C (54–64 °F) before winter brings much colder water; by late autumn and winter the reservoir can fall to near freezing, around 0–4 °C (32–39 °F), with ice possible in prolonged cold spells.
Recreational swimming at Pyasachnik is possible in the warmer months when surface temperatures are comfortable, but local rules and conditions determine whether it is officially permitted. Authorities may restrict access for reasons of water management, safety hazards such as steep banks, sudden depth changes and strong currents near outlets or inflows, and variable water quality or algal growth. Visitors should look for posted signs or local guidance before entering the water and avoid areas close to dam structures; when allowed and monitored, summer months offer the best and safest conditions for swimming.