Is it possible to go for a swim in Belarus?
Belarus Weather and Water Conditions Update: August 11-17, 2025
As we move into the second half of August, Belarus is experiencing a typical late summer climate. Here's a summary of the current water temperatures and the weather forecast for the coming days.
Water Temperatures
The current water temperature in Belarus' rivers ranges from 16°C to 24°C, and in reservoirs from 21°C to 25°C [1]. No significant changes are expected in the coming days.
Weather Forecast
According to Met Office forecasts for weather in Belarus (Slutsk), the rest of this week (Aug 11–17, 2025) will see temperatures ranging from about 18°C to 26°C during the day [5]. Nighttime temperatures will be between 10°C and 17°C.
On Thursday, August 11, expect daytime temperatures of 18-24°C above zero. However, Thursday night will be cool, with temperatures ranging from 9 to 16°C [5]. There will be no precipitation on Friday.
The weather will be mostly sunny, with occasional sun intervals and some likelihood of light rain or thunderstorms around midweek (e.g., Wednesday) [5]. The night of Friday, August 13, will be cool, with temperatures ranging from 7 to 14°C.
As the week ends, there will be brief showers and thunderstorms. The nighttime air temperature on Saturday, August 14, will drop slightly to 7°C. The nighttime air temperature at the end of the week will be 11-18°C.
Safety Advisory
Meteorologists have warned against swimming in the Nemunas near Grodno and the Dnieper near Mogilev due to heavy river traffic [6]. Doctors advise swimming when the water temperature is not below 18°C and the air temperature is at least +20°C [2].
Hydrological Conditions
Hydrologists predict that there will be no significant changes in water levels and thermal regime of rivers in the coming days [3]. As of August 5, water levels in rivers are fluctuating by 1-13 cm per day in certain locations [4]. Specific rivers, such as the Nemunas tributary, Ross River; the Pripyat tributary, Sluch River; the Berezina tributaries, Bobr River and Svisloch River; and at specific villages, have exceeded the bankfull stage [3].
Sources:
- Belhydromet for hydrological data [1]
- Doctors’ advice for swimming safety [2]
- Hydrological predictions for the coming days [3]
- Current water level fluctuations in rivers [4]
- Met Office forecasts for weather in Belarus (Slutsk) [5]
- Meteorological warnings against swimming in specific rivers [6]
The weather forecast for the coming days in Belarus suggests temperatures ranging from 18°C to 26°C during the day and between 10°C and 17°C at night, while the current water temperature in Belarus' rivers ranges from 16°C to 24°C, and in reservoirs from 21°C to 25°C. However, meteorologists have warned against swimming in the Nemunas near Grodno and the Dnieper near Mogilev due to heavy river traffic.
