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September Weather in Pohja, Finland

Last updated: August 23, 2025

In September, the average temperature in Pohja, Finland is a comfortable 13°C (55°F). However, be prepared for swings in temperature, as it can dip as low as -1°C (31°F) and soar to a pleasant 22°C (73°F). The month sees an average precipitation of 63 mm (2.5 in) spread over 12 days, contributing to a high average humidity of 87%. Whether you're enjoying the mild days or navigating the occasional rain, Pohja offers a unique experience in September!

September Temperature in Pohja

In September in Pohja, the average temperature is 13°C (55°F), with maximums reaching 22°C (73°F) and minimums dropping as low as -1°C (31°F). Be sure to pack accordingly, as the weather can vary quite a bit during this time!

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

The chart illustrates September temperature patterns in Pohja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pohja, September typically has an average temperature of 13°C (55°F), with highs reaching up to 22°C (73°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec292732394961646255464032
Data source: Temperature data for Pohja 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 Pohja

In Pohja in September, the total precipitation amount reaches 63 mm (2.5 in) over the course of 12 days.

September Precipitation Trends in Pohja

The chart displays monthly precipitation patterns in Pohja, 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 Pohja, September typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec554752364442688463946171
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Pohja

In Pohja in September, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.

September Average Humidity in Pohja

This chart illustrates the average monthly humidity levels in Pohja, 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 Pohja is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%90%87%76%80%80%83%87%90%91%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Pohja

In Pohja 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 Pohja for better planning.

Maximum UV Index Levels in Pohja for September

The chart shows the monthly maximum UV Index (UVI) for Pohja 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 Pohja typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Pohja 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 Pohja Compares to Other Months

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

This table compares monthly weather conditions in Pohja, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)55 mm (2.2 inches)92%low
February Weather-3°C (28°F)47 mm (1.8 inches)91%low
March Weather0°C (32°F)52 mm (2.1 inches)90%moderate
April Weather4°C (40°F)35 mm (1.4 inches)87%moderate
May Weather10°C (50°F)44 mm (1.7 inches)76%moderate
June Weather16°C (61°F)42 mm (1.7 inches)80%high
July Weather18°C (65°F)68 mm (2.7 inches)80%high
August Weather17°C (63°F)84 mm (3.3 inches)83%moderate
September Weather13°C (55°F)63 mm (2.5 inches)87%moderate
October Weather8°C (46°F)94 mm (3.7 inches)90%low
November Weather4°C (40°F)61 mm (2.4 inches)91%low
December Weather0°C (33°F)71 mm (2.8 inches)90%low

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