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Trebinjsko Lake — Current Water Temperature, Annual Trends and Forecast

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

Trebinjsko Lake, Bosnia and Herzegovina
Trebinjsko Lake, Bosnia and Herzegovina © By Diego Delso, CC BY-SA 3.0

Current Water Temperature

21.9°C
Today
22.1°C
Yesterday
23.0°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 Trebinjsko Lake today is 21.9°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 August 20 to September 20

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1323.0°C21.0°C
SEP 1423.0°C21.0°C
SEP 1523.0°C21.0°C
SEP 1622.3°C21.0°C
SEP 1722.5°C21.0°C
SEP 1822.2°C21.0°C
SEP 1922.1°C21.0°C
SEP 2022.0°C21.0°C
SEP 2121.0°C21.9°C
SEP 2221.0°C21.8°C
SEP 2321.0°C21.8°C
SEP 2421.0°C21.7°C
SEP 2521.0°C21.7°C
SEP 2621.0°C21.6°C
SEP 2721.0°C21.6°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
January6°C10°C13°C
February6°C10°C13°C
March8°C12°C15°C
April10°C14°C18°C
May12°C18°C23°C
June16°C21°C26°C
July19°C24°C29°C
August19°C24°C29°C
September16°C21°C26°C
October13°C18°C21°C
November9°C13°C17°C
December6°C10°C13°C

Trebinjsko Lake: Water Temperature by Location

Trebinjsko Lake: Weather Forecast

September 21

° / °
slight rain showers
rain: 15% | wind:

September 22

° / °
overcast
rain: 3% | wind:

September 23

° / °
partly cloudy
rain: 0% | wind:

September 24

° / °
slight thunderstorm
rain: 47% | wind:

September 25

° / °
slight thunderstorm
rain: 68% | wind:

Location & Local Information

Trebinjsko Lake, also known as Goricko Lake, is an artificial reservoir located near the city of Trebinje in southern Bosnia and Herzegovina. It lies in the warm Mediterranean-influenced climate of Herzegovina, which keeps the water relatively mild for most of the year. In winter, the water temperature typically ranges between 6 and 9°C, while in spring it gradually warms to around 15°C. During the summer months, particularly in July and August, the lake reaches 22–26°C, sometimes even higher in shallow areas. In autumn, it slowly cools again to about 14–18°C.

Swimming in Trebinjsko Lake is possible and quite popular during summer. The water is calm, clean, and suitable for bathing, especially along accessible banks near Trebinje. There are no large organized beaches, but locals often swim and relax by the lakeshore. Because of its warm climate, long sunny days, and moderate water temperature, the lake provides good conditions for swimming, kayaking, and other water activities. Outside the summer season, the water becomes too cool for comfort, but the lake remains a scenic spot for visitors throughout the year.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Trebinjsko Lake?
Water Temperature in Trebinjsko Lake today is 21.9°C.
What is the water temperature in Trebinjsko Lake during the summer months?
The water temperature in Trebinjsko Lake in summer fluctuates in the range of 16°C - 29°C.
Is it possible to swim in Trebinjsko Lake (Bosnia and Herzegovina) and what are the possibilities for this?
Yes — people do swim in Trebinjsko Lake in the warmer months, usually from informal shorelines or small boats, with opportunities for sunbathing, picnicking, fishing and boating, though formal bathing facilities, lifeguards and regular water-quality monitoring may be limited so visitors should check local conditions and exercise caution.