September Weather in Ilja, Belarus

Last updated: August 22, 2025

In Ilja, Belarus, the average temperature in September hovers around 13°C (56°F). Expect a chilly minimum of -2°C (28°F) and a pleasantly warm maximum of 27°C (80°F). With 66 mm (2.6 in) of precipitation spread over 11 days, don't forget your umbrella! The air is likely to feel quite humid, with an average humidity of 85%.

September Temperature in Ilja

In September in Ilja, the average temperature is 13°C (56°F). The maximum can reach 27°C (80°F), while the minimum can drop as low as -2°C (28°F). It’s a great time to visit if you enjoy mild weather and a bit of seasonal variety.

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

The chart illustrates September temperature patterns in Ilja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilja, September typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (80°F) and lows dropping to around -2°C (28°F).

Data source: Temperature data for Ilja generated using information from the Copernicus Climate Change Service.

September Precipitation in Ilja

In Ilja in September, the precipitation amount is 66 mm (2.6 in) spread over 11 days.

September Precipitation Trends in Ilja

The chart displays monthly precipitation patterns in Ilja, 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 Ilja, September typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Ilja

In Ilja in September humidity is 85%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that wraps around you, making outdoor activities feel heavier and less enjoyable, as layers of clothing cling to the skin and breath becomes visible in the moist air.

September Average Humidity in Ilja

This chart illustrates the average monthly humidity levels in Ilja, 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 Ilja is approximately 85%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ilja

In Ilja 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 Ilja.

Maximum UV Index Levels in Ilja for September

The chart shows the monthly maximum UV Index (UVI) for Ilja 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 Ilja typically reaches 5, which falls under the moderate exposure category.

Data source: Ilja 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 Ilja Compares to Other Months

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

This table compares monthly weather conditions in Ilja, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	47 mm (1.9 inches)	94%	low
February Weather	-3°C (27°F)	35 mm (1.4 inches)	92%	low
March Weather	1°C (34°F)	47 mm (1.9 inches)	90%	moderate
April Weather	7°C (44°F)	43 mm (1.7 inches)	86%	moderate
May Weather	12°C (54°F)	60 mm (2.3 inches)	70%	high
June Weather	18°C (65°F)	60 mm (2.4 inches)	75%	very high
July Weather	18°C (65°F)	97 mm (3.8 inches)	75%	high
August Weather	18°C (64°F)	92 mm (3.6 inches)	74%	high
September Weather	13°C (56°F)	66 mm (2.6 inches)	85%	moderate
October Weather	8°C (47°F)	58 mm (2.3 inches)	92%	moderate
November Weather	3°C (38°F)	54 mm (2.1 inches)	93%	low
December Weather	-1°C (30°F)	62 mm (2.4 inches)	94%	low