Küçük Menderes River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Küçük Menderes River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Küçük Menderes River today is 18.4°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 24 | 19.6°C | 18.0°C | |
| OCT 25 | 19.6°C | 18.0°C | |
| OCT 26 | 19.3°C | 18.0°C | |
| OCT 27 | 19.3°C | 18.0°C | |
| OCT 28 | 19.3°C | 18.0°C | |
| OCT 29 | 18.8°C | 18.0°C | |
| OCT 30 | 18.6°C | 18.0°C | |
| OCT 31 | 18.8°C | 18.0°C | |
| NOV 1 | 15.2°C | 18.2°C | |
| NOV 2 | 15.2°C | 18.1°C | |
| NOV 3 | 15.2°C | 17.9°C | |
| NOV 4 | 15.2°C | 17.8°C | |
| NOV 5 | 15.2°C | 17.6°C | |
| NOV 6 | 15.2°C | 17.4°C | |
| NOV 7 | 15.2°C | 17.3°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 | 6°C | 9°C | 13°C |
| February | 9°C | 12°C | 15°C |
| March | 10°C | 14°C | 17°C |
| April | 12°C | 16°C | 18°C |
| May | 14°C | 19°C | 24°C |
| June | 20°C | 24°C | 28°C |
| July | 22°C | 25°C | 29°C |
| August | 22°C | 25°C | 29°C |
| September | 22°C | 27°C | 28°C |
| October | 14°C | 18°C | 20°C |
| November | 11°C | 15°C | 20°C |
| December | 9°C | 12°C | 15°C |
Küçük Menderes River: Water Temperature by Location
Küçük Menderes River: Weather Forecast
November 1
November 2
November 3
November 4
November 5
November 6
Location & Local Information
Source:
• location Beydağ, İzmir
• elevation 220 m (722 ft)
Mouth:
• location Selçuk, İzmir
• elevation 0 m (0 ft)
Length 114 km (71 mi)
The Küçük Menderes (literally “Little Meander”) is a lowland river in the İzmir region whose water temperature varies notably through the year. Typical seasonal surface temperatures range from about 8–12 °C (46–54 °F) in winter, rise to 12–18 °C (54–64 °F) in spring, reach roughly 20–26 °C (68–79 °F) in summer, and cool to about 14–20 °C (57–68 °F) in autumn. These figures are approximate and can shift with rainfall, upstream releases for irrigation, and local weather: shallow, slow-moving stretches warm faster in hot months, while deeper or shaded pools stay cooler.
Swimming in the Küçük Menderes is generally not encouraged across much of its course. Reasons include variable water quality affected by agricultural runoff and urban discharge, fluctuating depths and currents, and submerged debris or infrastructure from irrigation works that create safety hazards. Local rules vary, so some rural or estuarine spots near the Aegean may see informal bathing when conditions look clean and calm, but public authorities and environmental groups often advise against recreational swimming except where water quality monitoring explicitly confirms safety.