September Weather in Ust'-Omchug, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Ust'-Omchug, Russian Federation hovers around 4°C (40°F), with fluctuations that can dip as low as -12°C (11°F) and soar to a pleasant 20°C (68°F). Expect 63 mm (2.5 in) of precipitation spread over 11 days, contributing to an average humidity of a high 86%.

September Temperature in Ust'-Omchug

In September in Ust'-Omchug, the average temperature is 4°C (40°F), with maximums reaching 20°C (68°F) and minimums plummeting to -12°C (11°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for comfort during their visit.

September Weather in Ust'-Omchug: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ust'-Omchug, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ust'-Omchug, September typically has an average temperature of 4°C (40°F), with highs reaching up to 20°C (68°F) and lows dropping to around -12°C (11°F).

Data source: Temperature data for Ust'-Omchug generated using information from the Copernicus Climate Change Service.

September Precipitation in Ust'-Omchug

In Ust'-Omchug in September, the precipitation amount is 63 mm (2.5 in) during a total of 11 days.

September Precipitation Trends in Ust'-Omchug

The chart displays monthly precipitation patterns in Ust'-Omchug, 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 Ust'-Omchug, September typically receives around 63 mm (2.5 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 Ust'-Omchug

In Ust'-Omchug in September humidity is 86%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel cumbersome as you navigate through a thick, heavy air that clings to your skin.

September Average Humidity in Ust'-Omchug

This chart illustrates the average monthly humidity levels in Ust'-Omchug, 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 Ust'-Omchug is approximately 86%, 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 Ust'-Omchug

In Ust'-Omchug in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Ust'-Omchug for better planning.

Maximum UV Index Levels in Ust'-Omchug for September

The chart shows the monthly maximum UV Index (UVI) for Ust'-Omchug 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 Ust'-Omchug typically reaches 4, which falls under the moderate exposure category.

Data source: Ust'-Omchug 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 Ust'-Omchug Compares to Other Months

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

This table compares monthly weather conditions in Ust'-Omchug, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-34°C (-28°F)	14 mm (0.6 inches)	96%	low
February Weather	-28°C (-18°F)	12 mm (0.5 inches)	96%	low
March Weather	-20°C (-4°F)	20 mm (0.8 inches)	93%	moderate
April Weather	-9°C (15°F)	22 mm (0.9 inches)	90%	moderate
May Weather	3°C (38°F)	59 mm (2.3 inches)	87%	high
June Weather	10°C (50°F)	74 mm (2.9 inches)	86%	high
July Weather	13°C (57°F)	76 mm (3.0 inches)	86%	high
August Weather	11°C (52°F)	87 mm (3.4 inches)	88%	high
September Weather	4°C (40°F)	63 mm (2.5 inches)	86%	moderate
October Weather	-9°C (15°F)	36 mm (1.4 inches)	89%	low
November Weather	-22°C (-7°F)	41 mm (1.6 inches)	96%	low
December Weather	-34°C (-28°F)	13 mm (0.5 inches)	96%	low