Temperature:

Your Favorite Locations:

Your favorites list is empty.

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

18.7°C
Today
19.6°C
Yesterday
18.5°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 18.7°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

From June 21 to July 22

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1418.5°C19.5°C
JUL 1520.3°C19.5°C
JUL 1620.1°C19.5°C
JUL 1720.2°C19.5°C
JUL 1820.6°C19.5°C
JUL 1920.4°C19.5°C
JUL 2019.6°C19.5°C
JUL 2119.0°C19.5°C
JUL 2219.5°C18.7°C
JUL 2319.5°C18.8°C
JUL 2419.5°C18.8°C
JUL 2519.5°C18.9°C
JUL 2619.5°C18.9°C
JUL 2719.5°C18.9°C
JUL 2819.5°C19.0°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 22

° / °
slight rain
rain: 10% | wind:

July 23

° / °
overcast
rain: 13% | wind:

July 24

° / °
overcast
rain: 3% | wind:

July 25

° / °
overcast
rain: 0% | wind:

July 26

° / °
slight rain
rain: 19% | wind:

July 27

° / °
slight rain showers
rain: 33% | 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 18.7°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.