Ivaylovgrad Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Ivaylovgrad Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Ivaylovgrad Reservoir today is 19.2°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 |
|---|---|---|---|
| OCT 3 | 21.3°C | 19.0°C | |
| OCT 4 | 21.0°C | 19.0°C | |
| OCT 5 | 20.9°C | 19.0°C | |
| OCT 6 | 20.5°C | 19.0°C | |
| OCT 7 | 20.5°C | 19.0°C | |
| OCT 8 | 20.3°C | 19.0°C | |
| OCT 9 | 19.7°C | 19.0°C | |
| OCT 10 | 19.4°C | 19.0°C | |
| OCT 11 | 19.0°C | 19.2°C | |
| OCT 12 | 19.0°C | 19.2°C | |
| OCT 13 | 19.0°C | 19.2°C | |
| OCT 14 | 19.0°C | 19.2°C | |
| OCT 15 | 19.0°C | 19.2°C | |
| OCT 16 | 19.0°C | 19.1°C | |
| OCT 17 | 19.0°C | 19.1°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 | 4°C | 9°C | 13°C |
| February | 5°C | 9°C | 13°C |
| March | 7°C | 12°C | 17°C |
| April | 10°C | 15°C | 20°C |
| May | 11°C | 19°C | 26°C |
| June | 18°C | 23°C | 28°C |
| July | 20°C | 25°C | 30°C |
| August | 21°C | 26°C | 32°C |
| September | 18°C | 23°C | 28°C |
| October | 14°C | 19°C | 22°C |
| November | 11°C | 15°C | 19°C |
| December | 5°C | 9°C | 13°C |
Ivaylovgrad Reservoir: Water Temperature by Location
Ivaylovgrad Reservoir: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Ivaylovgrad Reservoir (Язовир Ивайловград) experiences distinct seasonal changes in surface water temperature. In winter the surface typically falls to around 2–6 °C (36–43 °F), making immersion hazardous without thermal protection. Spring temperatures rise to roughly 8–15 °C (46–59 °F) as the lake warms, while peak summer months commonly see 20–27 °C (68–81 °F) in sheltered bays and shallower areas; during heatwaves surface readings can reach the upper end of that range. In autumn the water cools again to approximately 10–16 °C (50–61 °F) as air temperatures decline and stratification breaks down.
Swimming at Ivaylovgrad is possible and is a popular summer activity in accessible coves and shorelines, but it is largely informal rather than uniformly regulated. Areas close to the dam, intakes or channels used for hydropower and water management are unsafe and often restricted because of strong currents, sudden level changes and underwater hazards. Water quality is generally suitable for bathing in calm weather, but it can vary with runoff and local conditions, and there are typically no permanent lifeguards, so swimmers should choose sheltered spots, be cautious of boat traffic and follow any local signs or municipal rules.