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Třeboň — Current Water Temperature, Annual Trends and Forecast

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

Třeboň, Czech Republic
Třeboň, Czech Republic © By Pavel Rychtecký, GFDL

Current Water Temperature

14.8°C
Today
15.3°C
Yesterday
15.9°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 Třeboň today is 14.8°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 22 to September 22

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1515.9°C17.6°C
SEP 1614.8°C17.6°C
SEP 1715.0°C17.6°C
SEP 1816.3°C17.6°C
SEP 1915.3°C17.6°C
SEP 2015.3°C17.6°C
SEP 2115.3°C17.6°C
SEP 2215.1°C17.6°C
SEP 2317.6°C14.9°C
SEP 2417.6°C15.1°C
SEP 2517.6°C15.2°C
SEP 2617.6°C15.4°C
SEP 2717.6°C15.5°C
SEP 2817.6°C15.6°C
SEP 2917.6°C15.8°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°C9°C
February1°C5°C9°C
March3°C7°C11°C
April5°C10°C16°C
May8°C13°C21°C
June14°C18°C23°C
July16°C20°C24°C
August15°C20°C25°C
September11°C18°C19°C
October8°C13°C16°C
November2°C9°C16°C
December1°C5°C8°C

Třeboň: Weather Forecast

September 23

° / °
overcast
rain: 0% | wind:

September 24

° / °
slight rain showers
rain: 58% | wind:

September 25

° / °
partly cloudy
rain: 15% | wind:

September 26

° / °
clear sky
rain: 10% | wind:

September 27

° / °
overcast
rain: 0% | wind:

Location & Local Information

Třeboň is a historic town in the South Bohemian Region of the Czech Republic, well known for its extensive network of fishponds and the meandering Lužnice River that flows near the town. In the section of the river close to Třeboň, the water is generally calm and shallow in many areas, making it suitable for informal swimming and wading. During the peak summer months of July and August, water temperatures typically reach around 20–22 °C, providing comfortable conditions for a refreshing dip, especially on warm days.

Swimming in Třeboň along the Lužnice River is mostly informal, as the town does not have large public beaches or developed swimming areas on the river. Locals and visitors often choose quiet, shallow spots along the riverbanks for brief swims or wading. The calm flow of the river and its natural surroundings make it relatively safe for families and casual swimmers, while other recreational activities such as canoeing, kayaking, or riverside picnics are popular as well.

Outside the peak summer season, water temperatures drop noticeably. In May or September, the Lužnice near Třeboň generally stays around 14–16 °C, which is too cool for extended swimming but still allows brief wading or cooling off along the shoreline.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Třeboň?
Water Temperature in Třeboň today is 14.8°C.
What is the water temperature in Třeboň during the summer months?
The water temperature in Třeboň in summer fluctuates in the range of 14°C - 25°C.
Is it possible to swim in Třeboň (Czech Republic) in Lužnice and what are the possibilities for this?
Yes — you can swim in the Třeboň area on the Lužnice, either in calmer stretches of the river, at designated bathing spots or in the region’s many managed fishponds and outdoor pools, but always check local water‑quality information, signage and safety rules before entering.