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September Weather in Slonim, Belarus

Last updated: August 22, 2025

In September, the average temperature in Slonim, Belarus hovers around 14°C (57°F), making for a mild climate. However, be prepared for temperature swings: it can dip as low as -2°C (29°F) or soar to a maximum of 28°C (82°F). Rainfall is expected, with 70 mm (2.8 in) of precipitation over approximately 10 days. Additionally, the air carries a notable average humidity of 76%, adding to the overall atmosphere of the season.

September Temperature in Slonim

In September in Slonim, the average temperature is 14°C (57°F), with maximums reaching up to 28°C (82°F) and minimums dipping as low as -2°C (29°F). This diverse temperature range makes Slonim an interesting destination for travelers who enjoy experiencing varying weather conditions.

September Weather in Slonim: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Slonim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slonim, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec282936465566666657483932
Data source: Temperature data for Slonim generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Slonim

In Slonim in September, the precipitation amount is 70 mm (2.8 in) over a period of 10 days.

September Precipitation Trends in Slonim

The chart displays monthly precipitation patterns in Slonim, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Slonim, September typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4441444482701048470554258
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slonim

In Slonim in September humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.

September Average Humidity in Slonim

This chart illustrates the average monthly humidity levels in Slonim, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Slonim is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%91%89%79%61%64%64%63%76%90%92%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Slonim

In Slonim in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Slonim.

Maximum UV Index Levels in Slonim for September

The chart shows the monthly maximum UV Index (UVI) for Slonim in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Slonim typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568775321
Data source: Slonim September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Slonim Compares to Other Months

Weather in Slonim varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Slonim, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Slonim, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)44 mm (1.7 inches)93%low
February Weather-1°C (30°F)41 mm (1.6 inches)91%low
March Weather2°C (36°F)44 mm (1.7 inches)89%moderate
April Weather8°C (46°F)44 mm (1.7 inches)79%moderate
May Weather13°C (56°F)82 mm (3.2 inches)61%high
June Weather19°C (66°F)70 mm (2.8 inches)64%very high
July Weather19°C (66°F)104 mm (4.1 inches)64%high
August Weather19°C (66°F)84 mm (3.3 inches)63%high
September Weather14°C (57°F)70 mm (2.8 inches)76%moderate
October Weather9°C (49°F)55 mm (2.2 inches)90%moderate
November Weather4°C (40°F)42 mm (1.7 inches)92%low
December Weather0°C (32°F)58 mm (2.3 inches)92%low

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