September Weather in Seymchan, Russian Federation

Last updated: August 27, 2025

In Seymchan, Russian Federation, the average temperature in September hovers around 6°C (43°F). During this time, temperatures can dip as low as -8°C (17°F) or rise to a comfortable 26°C (79°F). Expect 49 mm (1.9 in) of precipitation spread over approximately 9 days, and prepare for a high average humidity of 90%.

September Temperature in Seymchan

In September in Seymchan, the average temperature is 6°C (43°F). The maximum can reach 26°C (79°F), and the minimum can be as low as -8°C (17°F). Be prepared for a wide range of temperatures to make the most of your travel experience.

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

The chart illustrates September temperature patterns in Seymchan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seymchan, September typically has an average temperature of 6°C (43°F), with highs reaching up to 26°C (79°F) and lows dropping to around -8°C (17°F).

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

September Precipitation in Seymchan

In Seymchan in September, the total precipitation amount is 49 mm (1.9 in) spread over 9 days.

September Precipitation Trends in Seymchan

The chart displays monthly precipitation patterns in Seymchan, 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 Seymchan, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 9 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 Seymchan

In Seymchan in September humidity is 90%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill clinging to your skin, making travel uncomfortable as you navigate through the thick, heavy air that seems to sap your energy.

September Average Humidity in Seymchan

This chart illustrates the average monthly humidity levels in Seymchan, 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 Seymchan is approximately 90%, 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 Seymchan

In Seymchan 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 Seymchan, you can check the information here.

Maximum UV Index Levels in Seymchan for September

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

Data source: Seymchan 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 Seymchan Compares to Other Months

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

This table compares monthly weather conditions in Seymchan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-35°C (-30°F)	21 mm (0.8 inches)	99%	low
February Weather	-30°C (-21°F)	18 mm (0.7 inches)	99%	low
March Weather	-20°C (-5°F)	16 mm (0.6 inches)	95%	low
April Weather	-8°C (18°F)	13 mm (0.5 inches)	88%	moderate
May Weather	6°C (43°F)	33 mm (1.3 inches)	83%	moderate
June Weather	14°C (58°F)	51 mm (2.0 inches)	84%	moderate
July Weather	16°C (62°F)	74 mm (2.9 inches)	84%	high
August Weather	13°C (56°F)	67 mm (2.6 inches)	88%	moderate
September Weather	6°C (43°F)	49 mm (1.9 inches)	90%	moderate
October Weather	-8°C (18°F)	32 mm (1.2 inches)	96%	low
November Weather	-21°C (-6°F)	53 mm (2.1 inches)	101%	low
December Weather	-33°C (-27°F)	17 mm (0.7 inches)	100%	low