Žatec — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Žatec, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Žatec today is 22.2°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 5 | 22.9°C | 18.8°C | |
| AUG 6 | 23.6°C | 18.8°C | |
| AUG 7 | 23.6°C | 18.8°C | |
| AUG 8 | 23.2°C | 18.8°C | |
| AUG 9 | 22.9°C | 18.8°C | |
| AUG 10 | 22.5°C | 18.8°C | |
| AUG 11 | 22.6°C | 18.8°C | |
| AUG 12 | 22.7°C | 18.8°C | |
| AUG 13 | 18.8°C | 22.0°C | |
| AUG 14 | 18.8°C | 21.9°C | |
| AUG 15 | 18.8°C | 21.7°C | |
| AUG 16 | 18.8°C | 21.5°C | |
| AUG 17 | 18.8°C | 21.4°C | |
| AUG 18 | 18.8°C | 21.2°C | |
| AUG 19 | 18.8°C | 21.0°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 |
|---|---|---|---|
| January | 1°C | 6°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 3°C | 7°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 24°C |
| July | 15°C | 20°C | 24°C |
| August | 14°C | 19°C | 24°C |
| September | 11°C | 18°C | 19°C |
| October | 8°C | 13°C | 16°C |
| November | 3°C | 8°C | 16°C |
| December | 2°C | 6°C | 8°C |
Žatec: Weather Forecast
August 13
August 14
August 15
August 16
Location & Local Information
Žatec lies on the banks of the Ohře River, where the flow is already quite broad and steady. In summer, the water temperature in this part of the river usually reaches around 18–22°C, sometimes a little higher during longer hot spells. The river cools down quickly in spring and autumn, often staying closer to 12–15°C, which makes swimming much more of a brisk experience outside the warmest months.
For swimming, the Ohře in Žatec offers mostly natural spots rather than structured bathing areas. Locals sometimes use calm stretches of the river to take a dip, especially on hot summer days, although the current can be stronger in some places. The riverbanks here provide green areas where it’s possible to sit, relax, and enjoy the water, but swimming remains more informal and suited to those who like a natural river environment rather than a developed beach setting.