September Weather in Synya, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Synya, Russian Federation hovers around 7°C (45°F), with daily variations ranging from a chilly -4°C (24°F) to a mild 21°C (70°F). Expect an average precipitation of 90 mm (3.6 in) spread over 17 days, and prepare for a notably high average humidity of 92%. Get ready for damp days and cool winds!

September Temperature in Synya

In September in Synya, the average temperature is 7°C (45°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -4°C (24°F). Travelers should be prepared for a wide range of temperatures, packing layers to ensure comfort throughout the day.

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

The chart illustrates September temperature patterns in Synya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Synya, September typically has an average temperature of 7°C (45°F), with highs reaching up to 21°C (70°F) and lows dropping to around -4°C (24°F).

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

September Precipitation in Synya

In Synya in September, the precipitation amount is 90 mm (3.6 in) over a duration of 17 days.

September Precipitation Trends in Synya

The chart displays monthly precipitation patterns in Synya, 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 Synya, September typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 17 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 Synya

In Synya in September, humidity is 92%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities feel heavier and less enjoyable for traveling.

September Average Humidity in Synya

This chart illustrates the average monthly humidity levels in Synya, 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 Synya 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 Synya

In Synya 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 Synya, you can check the information here.

Maximum UV Index Levels in Synya for September

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

Data source: Synya 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 Synya Compares to Other Months

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

This table compares monthly weather conditions in Synya, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-17°C (2°F)	44 mm (1.7 inches)	101%	low
February Weather	-16°C (4°F)	44 mm (1.7 inches)	99%	low
March Weather	-9°C (17°F)	68 mm (2.7 inches)	95%	moderate
April Weather	-2°C (28°F)	64 mm (2.5 inches)	89%	moderate
May Weather	4°C (39°F)	79 mm (3.1 inches)	81%	moderate
June Weather	10°C (51°F)	84 mm (3.3 inches)	82%	moderate
July Weather	17°C (63°F)	97 mm (3.8 inches)	85%	high
August Weather	13°C (55°F)	126 mm (5.0 inches)	88%	moderate
September Weather	7°C (45°F)	90 mm (3.6 inches)	92%	moderate
October Weather	0°C (32°F)	94 mm (3.7 inches)	98%	low
November Weather	-8°C (18°F)	86 mm (3.4 inches)	101%	low
December Weather	-12°C (11°F)	65 mm (2.5 inches)	100%	low