Lake Durusu — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Durusu, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Durusu today is 19.9°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 | 21.6°C | 19.0°C | |
| OCT 4 | 21.5°C | 19.0°C | |
| OCT 5 | 21.4°C | 19.0°C | |
| OCT 6 | 21.3°C | 19.0°C | |
| OCT 7 | 21.0°C | 19.0°C | |
| OCT 8 | 20.8°C | 19.0°C | |
| OCT 9 | 20.7°C | 19.0°C | |
| OCT 10 | 20.0°C | 19.0°C | |
| OCT 11 | 19.0°C | 19.9°C | |
| OCT 12 | 19.0°C | 19.8°C | |
| OCT 13 | 19.0°C | 19.8°C | |
| OCT 14 | 19.0°C | 19.7°C | |
| OCT 15 | 19.0°C | 19.7°C | |
| OCT 16 | 19.0°C | 19.6°C | |
| OCT 17 | 19.0°C | 19.6°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 | 5°C | 10°C | 13°C |
| February | 6°C | 10°C | 13°C |
| March | 7°C | 12°C | 17°C |
| April | 11°C | 16°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 | 6°C | 10°C | 14°C |
Lake Durusu: Water Temperature by Location
Lake Durusu: Weather Forecast
October 11
October 12
October 13
October 14
October 15
Location & Local Information
Lake Durusu (Turkish: Durugöl) is a freshwater reservoir north of Istanbul that shows clear seasonal variation in surface temperature. In winter the lake typically cools to around 4–8 °C (39–46 °F), spring brings a gradual rise into the 8–16 °C (46–61 °F) range as the water mixes, and summer surface temperatures commonly reach 18–26 °C (64–79 °F), occasionally peaking close to 28 °C (82 °F) during heat waves. In autumn the surface usually falls back into the 12–18 °C (54–64 °F) band. These are broad, typical ranges that vary with year-to-year weather, wind-driven mixing, and depth; deeper layers remain colder and thermal stratification can limit warming.
Swimming in Durugöl is generally not permitted because the lake functions as an important municipal drinking-water reservoir and is protected for quality and supply reasons. Authorities restrict bathing and other direct-contact activities to prevent contamination, and safety concerns—cold temperatures below the surface, variable currents, and occasional algal conditions in warm months—add to the rationale. While some people may enter the water informally, such activities are discouraged and can be subject to enforcement; for recreational swimming, designated coastal or managed facilities outside the reservoir are the recommended alternatives.