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 18.9°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 16 | 20.8°C | 19.5°C | |
| JUL 17 | 21.1°C | 19.5°C | |
| JUL 18 | 21.3°C | 19.5°C | |
| JUL 19 | 21.2°C | 19.5°C | |
| JUL 20 | 20.5°C | 19.5°C | |
| JUL 21 | 19.7°C | 19.5°C | |
| JUL 22 | 19.5°C | 19.5°C | |
| JUL 23 | 18.9°C | 19.5°C | |
| JUL 24 | 19.5°C | 18.9°C | |
| JUL 25 | 19.5°C | 19.0°C | |
| JUL 26 | 19.5°C | 19.0°C | |
| JUL 27 | 19.5°C | 19.0°C | |
| JUL 28 | 19.5°C | 19.1°C | |
| JUL 29 | 19.5°C | 19.1°C | |
| JUL 30 | 19.5°C | 19.1°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 | 23°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
July 24
July 25
July 26
July 27
July 28
July 29
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.