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September Weather in Saari, Finland

Last updated: August 23, 2025

In September, the average temperature in Saari, Finland hovers around 11°C (51°F), with fluctuations between a chilly 1°C (33°F) and a pleasant 22°C (73°F). Expect 78 mm (3.1 in) of precipitation spread across about 13 days, contributing to a high average humidity level of 90%. Be prepared for a mix of cool, damp days and occasional warmth!

September Temperature in Saari

In September in Saari, the average temperature is 11°C (51°F). The maximum can reach 22°C (73°F), while the minimum can drop to as low as 1°C (33°F). It's advisable to dress in layers to stay comfortable while exploring the area during this month.

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

The chart illustrates September temperature patterns in Saari, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saari, September typically has an average temperature of 11°C (51°F), with highs reaching up to 22°C (73°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec222127364860636051423426
Data source: Temperature data for Saari 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 Saari

In Saari in September, the precipitation amount is 78 mm (3.1 in) spread over 13 days.

September Precipitation Trends in Saari

The chart displays monthly precipitation patterns in Saari, 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 Saari, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec485047495560829978745274
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saari

In Saari in September, humidity is 90%. With an average temperature of 11°C (51°F), this humidity feels like a damp blanket wrapping around you, making traveling uncomfortable and sticky, as every step leaves you feeling sluggish and clinging to the air.

September Average Humidity in Saari

This chart illustrates the average monthly humidity levels in Saari, 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 Saari is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec98%96%93%88%77%76%82%84%90%93%93%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saari

In Saari 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 Saari, you can check the information here.

Maximum UV Index Levels in Saari for September

The chart shows the monthly maximum UV Index (UVI) for Saari 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 Saari typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456753211
Data source: Saari 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 Saari Compares to Other Months

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

This table compares monthly weather conditions in Saari, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)48 mm (1.9 inches)98%low
February Weather-6°C (21°F)50 mm (2.0 inches)96%low
March Weather-3°C (28°F)47 mm (1.9 inches)93%moderate
April Weather2°C (37°F)49 mm (1.9 inches)88%moderate
May Weather9°C (48°F)55 mm (2.2 inches)77%moderate
June Weather16°C (60°F)60 mm (2.4 inches)75%high
July Weather17°C (63°F)82 mm (3.2 inches)82%high
August Weather16°C (61°F)98 mm (3.9 inches)84%moderate
September Weather11°C (51°F)78 mm (3.1 inches)90%moderate
October Weather6°C (42°F)74 mm (2.9 inches)93%low
November Weather1°C (34°F)52 mm (2.0 inches)93%low
December Weather-4°C (26°F)74 mm (2.9 inches)95%low

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