nomadseason

September Weather in Demyansk, Russian Federation

Last updated: August 27, 2025

In Demyansk, Russian Federation, the average temperature in September hovers around 12°C (54°F), with a minimum dipping to -1°C (30°F) and a maximum reaching 27°C (81°F). Expect about 77 mm (3.0 in) of precipitation spread over 12 days, contributing to an average humidity of 89%. Perfect for a cozy indoor experience or a refreshing rain walk!

September Temperature in Demyansk

In September in Demyansk, the average temperature is 12°C (54°F). The maximum can reach 27°C (81°F), and the minimum can be as low as -1°C (30°F). Expect a varied climate, so be prepared for both warm days and chilly nights during your travels.

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

The chart illustrates September temperature patterns in Demyansk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Demyansk, September typically has an average temperature of 12°C (54°F), with highs reaching up to 27°C (81°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec242531415363646254443527
Data source: Temperature data for Demyansk generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Demyansk

In Demyansk in September, the precipitation amount is 77 mm (3.0 in) spread over 12 days.

September Precipitation Trends in Demyansk

The chart displays monthly precipitation patterns in Demyansk, 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 Demyansk, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4949565862841129677827565
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Demyansk

In Demyansk in September humidity is 89%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that envelops you, making travels slightly uncomfortable as you navigate through a thick, moist air that can cling to your skin and steal your warmth.

September Average Humidity in Demyansk

This chart illustrates the average monthly humidity levels in Demyansk, 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 Demyansk is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%93%90%85%70%78%81%84%89%93%94%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Demyansk

In Demyansk 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 Demyansk for better planning.

Maximum UV Index Levels in Demyansk for September

The chart shows the monthly maximum UV Index (UVI) for Demyansk 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 Demyansk typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567764211
Data source: Demyansk 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 Demyansk Compares to Other Months

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

This table compares monthly weather conditions in Demyansk, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)49 mm (1.9 inches)96%low
February Weather-4°C (25°F)49 mm (1.9 inches)93%low
March Weather0°C (31°F)56 mm (2.2 inches)89%moderate
April Weather5°C (42°F)58 mm (2.3 inches)85%moderate
May Weather12°C (53°F)62 mm (2.4 inches)70%high
June Weather17°C (63°F)84 mm (3.3 inches)78%high
July Weather18°C (64°F)112 mm (4.4 inches)81%high
August Weather17°C (62°F)96 mm (3.8 inches)84%high
September Weather12°C (54°F)77 mm (3.0 inches)89%moderate
October Weather7°C (45°F)82 mm (3.2 inches)93%low
November Weather2°C (36°F)75 mm (3.0 inches)94%low
December Weather-3°C (28°F)65 mm (2.6 inches)95%low

Compare Demyansk's Climate with Cities Worldwide