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September Weather in Olonets, Russian Federation

Last updated: August 27, 2025

In September, the average temperature in Olonets, Russian Federation hovers around 11°C (53°F). You can expect a range between a brisk 1°C (34°F) and a pleasant 23°C (73°F). This month typically sees about 89 mm (3.5 in) of precipitation spread over 14 days, contributing to an average humidity level of 91%.

September Temperature in Olonets

In September in Olonets, the average temperature is 11°C (53°F). Maximums can reach 23°C (73°F), while minimums can be as low as 1°C (34°F). Travelers should prepare for a mix of mild days and chilly nights.

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

The chart illustrates September temperature patterns in Olonets, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olonets, September typically has an average temperature of 11°C (53°F), with highs reaching up to 23°C (73°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec222127374861646152433525
Data source: Temperature data for Olonets generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Olonets

In Olonets in September, the precipitation amount is 89 mm (3.5 in) over a span of 14 days.

September Precipitation Trends in Olonets

The chart displays monthly precipitation patterns in Olonets, 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 Olonets, September typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec6166635152449112289877191
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olonets

In Olonets in September, humidity is 91%. With an average temperature of 11°C (53°F), this humidity feels like a damp embrace, making travel feel weighty and exhausting, as the thick air clings to your skin and makes every step a little more effortful.

September Average Humidity in Olonets

This chart illustrates the average monthly humidity levels in Olonets, 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 Olonets is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%97%94%89%78%74%82%87%91%93%93%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Olonets

In Olonets 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 Olonets for better planning.

Maximum UV Index Levels in Olonets for September

The chart shows the monthly maximum UV Index (UVI) for Olonets 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 Olonets typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456654211
Data source: Olonets 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 Olonets Compares to Other Months

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

This table compares monthly weather conditions in Olonets, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)61 mm (2.4 inches)99%low
February Weather-6°C (21°F)66 mm (2.6 inches)97%low
March Weather-3°C (28°F)63 mm (2.5 inches)94%moderate
April Weather3°C (37°F)51 mm (2.0 inches)89%moderate
May Weather9°C (49°F)52 mm (2.1 inches)78%moderate
June Weather16°C (61°F)44 mm (1.7 inches)74%high
July Weather18°C (64°F)90 mm (3.6 inches)82%high
August Weather16°C (61°F)122 mm (4.8 inches)87%moderate
September Weather11°C (53°F)89 mm (3.5 inches)91%moderate
October Weather6°C (43°F)87 mm (3.4 inches)93%low
November Weather1°C (35°F)71 mm (2.8 inches)93%low
December Weather-4°C (25°F)91 mm (3.6 inches)95%low

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