Ostrov — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Ostrov, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Ostrov today is 18.8°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 15 | 20.6°C | 19.0°C | |
| JUL 16 | 20.1°C | 19.0°C | |
| JUL 17 | 20.2°C | 19.0°C | |
| JUL 18 | 20.6°C | 19.0°C | |
| JUL 19 | 20.5°C | 19.0°C | |
| JUL 20 | 19.9°C | 19.0°C | |
| JUL 21 | 19.2°C | 19.0°C | |
| JUL 22 | 18.8°C | 19.0°C | |
| JUL 23 | 19.0°C | 18.8°C | |
| JUL 24 | 19.0°C | 18.8°C | |
| JUL 25 | 19.0°C | 18.8°C | |
| JUL 26 | 19.0°C | 18.8°C | |
| JUL 27 | 19.0°C | 18.9°C | |
| JUL 28 | 19.0°C | 18.9°C | |
| JUL 29 | 19.0°C | 18.9°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 |
|---|---|---|---|
| January | 0°C | 5°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 2°C | 7°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 13°C | 18°C | 23°C |
| July | 14°C | 19°C | 24°C |
| August | 13°C | 18°C | 23°C |
| September | 10°C | 15°C | 19°C |
| October | 7°C | 12°C | 16°C |
| November | 3°C | 8°C | 16°C |
| December | 2°C | 5°C | 8°C |
Ostrov: Weather Forecast
July 22
July 23
July 24
July 25
July 26
July 27
Location & Local Information
Ostrov, located in the Karlovy Vary Region at the foot of the Ore Mountains, is surrounded by small ponds and streams that reflect the cooler climate of this part of the Czech Republic. Because of the higher elevation and forested surroundings, water in local ponds usually warms up more slowly than in lowland areas. In June, temperatures often range between 17–19 °C, while in July and August they can rise to 21–23 °C, with the warmest stretches of summer occasionally bringing the water close to 24 °C. Even so, the nights here are often cool, which keeps the water fresh and never too hot.
Swimming opportunities around Ostrov are mainly tied to these smaller ponds and natural spots along streams. Locals often use them for casual bathing during warm days, enjoying the quieter and more natural setting compared to larger reservoirs. Access is usually simple, with grassy banks or small clearings by the water, making it easy to take a refreshing dip. For visitors, the experience is less about long hours on a beach and more about short swims in pleasantly cool waters surrounded by greenery and calm landscapes.