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Mladá Boleslav — Current Water Temperature, Annual Trends and Forecast

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

Jizera River, Czech Republic
Jizera River, Czech Republic © By Michielverbeek, CC BY-SA 4.0

Current Water Temperature

21.4°C
Today
21.0°C
Yesterday
19.4°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 Mladá Boleslav today is 21.4°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 2319.4°C18.5°C
JUN 2419.3°C18.5°C
JUN 2519.1°C18.5°C
JUN 2619.1°C18.5°C
JUN 2719.9°C18.5°C
JUN 2820.6°C18.5°C
JUN 2921.0°C18.5°C
JUN 3021.4°C18.5°C
JUL 120.0°C21.3°C
JUL 220.0°C21.3°C
JUL 320.0°C21.2°C
JUL 420.0°C21.1°C
JUL 520.0°C21.1°C
JUL 620.0°C21.0°C
JUL 720.0°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°C6°C9°C
February1°C5°C9°C
March3°C7°C11°C
April5°C10°C16°C
May8°C13°C21°C
June14°C19°C22°C
July16°C20°C24°C
August15°C19°C23°C
September11°C18°C19°C
October8°C13°C16°C
November3°C8°C16°C
December2°C5°C8°C

Mladá Boleslav: Weather Forecast

July 1

° / °
moderate thunderstorm
rain: 80% | wind:

July 2

° / °
overcast
rain: 25% | wind:

July 3

° / °
slight rain showers
rain: 20% | wind:

July 4

° / °
overcast
rain: 9% | wind:

Location & Local Information

In Mladá Boleslav, the Jizera River flows gently through the city, offering a natural spot for locals to enjoy during the warmer months. In summer, water temperatures in this section of the river usually range from 18–22 °C, making it comfortable for swimming, wading, or simply cooling off on a hot day. In spring and early autumn, the water tends to be cooler, often around 14–16 °C, which limits bathing mostly to brief dips for those who don’t mind cooler water.

Swimming in the Jizera at Mladá Boleslav is informal, as there are no official beaches or organized swimming areas. Locals often use grassy riverbanks or calm, shallow spots to enter the water. The current in this part of the river is generally mild, so it is suitable for casual swimming and family-friendly activities. While it’s not a major tourist destination for bathing, the Jizera here provides a peaceful and natural setting to enjoy the water during summer.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Mladá Boleslav?
Water Temperature in Mladá Boleslav today is 21.4°C.
What is the water temperature in Mladá Boleslav during the summer months?
The water temperature in Mladá Boleslav in summer fluctuates in the range of 14°C - 24°C.
Is it possible to swim in Mladá Boleslav (Czech Republic) in Jizera and what are the possibilities for this?
It is possible to swim in and around Mladá Boleslav: people bathe in parts of the Jizera and nearby ponds, use municipal indoor and outdoor pools, or go to designated and supervised bathing spots, though water quality, currents and local restrictions vary so it's best to stick to marked areas and heed local advisories.