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Lake Tortum — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Lake Tortum, trends, monthly ranges and the forecast for the coming days.

Fırtına Lake, Turkey
Fırtına Lake, Turkey © Dr. Zeynel Cebeci, GFDL

Current Water Temperature

22.0°C
Today
20.0°C
Yesterday
18.3°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Lake Tortum today is 22°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

From May 10 to June 10

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 318.3°C24.2°C
JUN 418.3°C24.2°C
JUN 519.7°C24.2°C
JUN 619.9°C24.2°C
JUN 720.0°C24.2°C
JUN 820.0°C24.2°C
JUN 1022.0°C24.2°C
JUN 1124.2°C22.1°C
JUN 1224.2°C22.2°C
JUN 1324.2°C22.3°C
JUN 1424.2°C22.4°C
JUN 1524.2°C22.6°C
JUN 1624.2°C22.7°C
JUN 1724.2°C22.8°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
January1°C5°C8°C
February3°C7°C10°C
March4°C8°C11°C
April6°C10°C15°C
May10°C15°C21°C
June18°C24°C30°C
July18°C23°C28°C
August19°C24°C29°C
September17°C22°C27°C
October10°C14°C18°C
November6°C11°C16°C
December6°C9°C12°C

Lake Tortum: Water Temperature by Location

Lake Tortum: Weather Forecast

June 9

° / °
slight rain showers
rain: 30% | wind:

June 10

° / °
slight thunderstorm
rain: 63% | wind:

June 11

° / °
overcast
rain: 48% | wind:

June 12

° / °
overcast
rain: 31% | wind:

June 13

° / °
partly cloudy
rain: 29% | wind:

Location & Local Information

Tortum Lake (Tortum Gölü) lies in the high plateau of Erzurum and behaves more like a cold mountain reservoir than a warm bathing lake. Seasonal surface temperatures are relatively low: in winter the lake can approach freezing, typically around 0–4 °C (32–39 °F); spring sees a gradual rise to roughly 4–10 °C (39–50 °F); summer brings the warmest conditions, often between about 12–18 °C (54–64 °F); and autumn cools back to roughly 6–12 °C (43–54 °F). These ranges can vary with weather, inflows from snowmelt, wind and depth, and deeper layers remain substantially colder year-round.

Swimming is possible in parts of Tortum Lake but is limited by temperature and safety considerations. Because the water stays quite cold even in summer, immersion carries a risk of cold shock and rapid hypothermia, so swimming is uncommon for prolonged recreation; short dips by acclimatized visitors occur during warm spells. The lake is also influenced by dam operations and strong currents near inlets, outlets and intake structures, so local restrictions or warning signs may prohibit access in certain zones. Visitors should follow local guidance, avoid swimming near infrastructure, and be prepared for low temperatures if they choose to enter the water.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake Tortum?
Water Temperature in Lake Tortum today is 22°C.
What is the water temperature in Lake Tortum during the summer months?
The water temperature in Lake Tortum in summer fluctuates in the range of 18°C - 30°C.
Is it possible to swim in Lake Tortum (Turkey) and what are the possibilities for this?
Swimming is possible in Lake Tortum, mainly from quieter shorelines, small bays or picnic and camping spots in warm months, but the water is often cold, facilities and lifeguards are limited, and dam-related currents and local rules mean you should exercise caution and check with locals about safe areas.