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Třinec — Current Water Temperature, Annual Trends and Forecast

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

Žermanická přehrada, Czech Republic
Žermanická přehrada, Czech Republic © Daniel Baránek, CC BY-SA 3.0

Current Water Temperature

20.4°C
Today
20.3°C
Yesterday
18.0°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 Třinec today is 20.4°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 2318.0°C16.5°C
JUN 2417.5°C16.5°C
JUN 2517.5°C16.5°C
JUN 2618.2°C16.5°C
JUN 2718.4°C16.5°C
JUN 2819.3°C16.5°C
JUN 2920.3°C16.5°C
JUN 3020.4°C16.5°C
JUL 119.0°C20.3°C
JUL 219.0°C20.3°C
JUL 319.0°C20.2°C
JUL 419.0°C20.1°C
JUL 519.0°C20.1°C
JUL 619.0°C20.0°C
JUL 719.0°C19.9°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
June11°C17°C22°C
July14°C19°C24°C
August15°C19°C23°C
September11°C18°C19°C
October8°C13°C16°C
November3°C8°C16°C
December2°C5°C8°C

Třinec: Weather Forecast

July 1

° / °
slight rain showers
rain: 78% | wind:

July 2

° / °
overcast
rain: 18% | wind:

July 3

° / °
slight rain
rain: 25% | wind:

July 4

° / °
slight rain showers
rain: 19% | wind:

July 5

° / °
overcast
rain: 28% | wind:

July 6

° / °
slight rain showers
rain: 29% | wind:

Location & Local Information

Třinec is a town located in the Moravian-Silesian region of the Czech Republic, situated along the Olza River and surrounded by smaller ponds and reservoirs. The water bodies in and around Třinec tend to be relatively cool, especially the river, which is fed by mountain streams. During the summer months of July and August, water temperatures in the river generally reach around 18–21 °C, making it refreshing for short swims or wading, while early summer and spring temperatures can be significantly lower, often between 10 °C and 16 °C.

Swimming opportunities directly in Třinec are limited, as the river is narrow and there are no official swimming beaches within the town itself. Locals often use nearby ponds or small recreational reservoirs for swimming, as these waters tend to warm more quickly and provide gentler conditions. Calm bays and shallow edges make these spots suitable for casual swimming, family outings, and relaxation by the water.

Overall, while Třinec itself does not offer extensive formal swimming facilities, the surrounding water bodies provide natural options for cooling off in the summer. For those seeking more comfortable and safer swimming experiences, nearby lakes and recreational ponds are preferred, offering warmer water, calm conditions, and quiet spots for enjoying the summer outdoors.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Třinec?
Water Temperature in Třinec today is 20.4°C.
What is the water temperature in Třinec during the summer months?
The water temperature in Třinec in summer fluctuates in the range of 11°C - 24°C.
Is it possible to swim in any bodies of water in Třinec (Czech Republic), and what are the available options for doing so?
Yes — in Třinec you can use the municipal indoor swimming pool and a seasonal outdoor lido, and you can also bathe in nearby natural waters such as local ponds, the Olše river or regional reservoirs, though those natural spots are typically unsupervised and water quality can vary so check local guidance.