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Medard jezero — Current Water Temperature, Annual Trends and Forecast

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

Vodní nádrž Přísečnice, Czech Republic
Vodní nádrž Přísečnice, Czech Republic © CC BY-SA 3.0, GFDL

Current Water Temperature

21.7°C
Today
21.9°C
Yesterday
19.8°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 Medard jezero today is 21.7°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 30 to June 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2319.8°C17.5°C
JUN 2419.9°C17.5°C
JUN 2519.9°C17.5°C
JUN 2620.2°C17.5°C
JUN 2720.7°C17.5°C
JUN 2821.1°C17.5°C
JUN 2921.9°C17.5°C
JUN 3021.9°C17.5°C
JUL 119.5°C21.6°C
JUL 219.5°C21.5°C
JUL 319.5°C21.4°C
JUL 419.5°C21.3°C
JUL 519.5°C21.2°C
JUL 619.5°C21.0°C
JUL 719.5°C20.9°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
February0°C5°C9°C
March2°C7°C11°C
April5°C10°C16°C
May8°C13°C21°C
June13°C18°C22°C
July15°C20°C24°C
August14°C19°C23°C
September10°C15°C19°C
October7°C12°C16°C
November3°C8°C16°C
December2°C5°C8°C

Medard jezero: Water Temperature by Location

Medard jezero: Weather Forecast

July 1

° / °
fog
rain: 90% | wind:

July 2

° / °
slight rain
rain: 15% | wind:

July 3

° / °
slight rain
rain: 15% | wind:

July 4

° / °
slight rain showers
rain: 10% | wind:

Location & Local Information

Medard Lake, a large artificial lake created on the site of a former coal mine near Sokolov, has quickly become known as one of the most striking bodies of water in western Bohemia. Because of its considerable size and depth, the water warms more slowly than in smaller ponds. In June, temperatures are often around 17–19 °C, and by July and August they usually reach 21–23 °C, with warmer spells pushing the surface water slightly higher. Despite this, the lake tends to keep a fresh, clear character thanks to its depth and open setting.

Swimming at Medard is officially allowed only in certain parts, as the lake is still being gradually developed for recreation. Where access is possible, the broad shoreline and clean water make it attractive for summer bathing. The feeling here is different from traditional Czech ponds — the wide expanse of water and open horizons give it a more coastal atmosphere. For visitors who enjoy a refreshing swim in a modern and spacious environment, Medard offers a unique alternative to the smaller, warmer lakes of the region.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Medard jezero?
Water Temperature in Medard jezero today is 21.7°C.
What is the water temperature in Medard jezero during the summer months?
The water temperature in Medard jezero in summer fluctuates in the range of 13°C - 24°C.
Is it possible to swim in Medard jezero (Czech Republic) and what are the possibilities for this?
Yes—swimming at Medard Lake is possible but generally only in designated or supervised bathing areas with facilities and checked water quality, while many parts of the former mining basin are closed or unsafe because of steep banks, submerged hazards and variable water quality, so follow local rules and use marked entry points.