September Weather in Koslan, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Koslan, Russian Federation hovers around 8°C (46°F). The mercury can dip as low as -3°C (27°F) or rise to a pleasant 23°C (73°F). Expect 86 mm (3.4 in) of precipitation spread over 14 days, accompanied by a high average humidity of 92%.

September Temperature in Koslan

In September in Koslan, the average temperature is 8°C (46°F). The maximum can reach 23°C (73°F), while the minimum can drop as low as -3°C (27°F). Be prepared for varied weather conditions, making it essential to pack layers for your trip.

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

The chart illustrates September temperature patterns in Koslan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koslan, September typically has an average temperature of 8°C (46°F), with highs reaching up to 23°C (73°F) and lows dropping to around -3°C (27°F).

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

September Precipitation in Koslan

In Koslan in September, the precipitation amount is 86 mm (3.4 in) over the course of 14 days.

September Precipitation Trends in Koslan

The chart displays monthly precipitation patterns in Koslan, 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 Koslan, September typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 14 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 Koslan

In Koslan in September, humidity is 92%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that settles deep into your bones, making outdoor adventures uncomfortable and necessitating extra layers to stay warm while you explore.

September Average Humidity in Koslan

This chart illustrates the average monthly humidity levels in Koslan, 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 Koslan is approximately 92%, 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 Koslan

In Koslan in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Koslan, you can check the information here.

Maximum UV Index Levels in Koslan for September

The chart shows the monthly maximum UV Index (UVI) for Koslan 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 Koslan typically reaches 3, which falls under the moderate exposure category.

Data source: Koslan 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 Koslan Compares to Other Months

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

This table compares monthly weather conditions in Koslan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-13°C (9°F)	43 mm (1.7 inches)	101%	low
February Weather	-12°C (10°F)	43 mm (1.7 inches)	98%	low
March Weather	-6°C (21°F)	51 mm (2.0 inches)	93%	low
April Weather	1°C (33°F)	42 mm (1.7 inches)	86%	moderate
May Weather	7°C (45°F)	64 mm (2.5 inches)	82%	moderate
June Weather	13°C (55°F)	83 mm (3.3 inches)	82%	high
July Weather	17°C (63°F)	78 mm (3.1 inches)	84%	high
August Weather	13°C (56°F)	102 mm (4.0 inches)	88%	moderate
September Weather	8°C (46°F)	86 mm (3.4 inches)	92%	moderate
October Weather	2°C (36°F)	81 mm (3.2 inches)	95%	low
November Weather	-4°C (25°F)	65 mm (2.5 inches)	100%	low
December Weather	-10°C (15°F)	55 mm (2.2 inches)	100%	low