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September Weather in Honkajoki, Finland

Last updated: August 23, 2025

In September, the average temperature in Honkajoki, Finland is a cool 10°C (51°F). Expect a range from a brisk -2°C (29°F) to a warm 24°C (75°F) throughout the month. With 75 mm (2.9 in) of precipitation spread over 13 days, it's wise to keep an umbrella handy. The average humidity stands at a notable 86%, creating a lush, vibrant atmosphere.

September Temperature in Honkajoki

In September in Honkajoki, the average temperature is 10°C (51°F). Maximum temperatures can reach 24°C (75°F), while minimums can drop as low as -2°C (29°F). Be prepared for a variety of weather conditions to make the most of your travel experience.

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

The chart illustrates September temperature patterns in Honkajoki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Honkajoki, September typically has an average temperature of 10°C (51°F), with highs reaching up to 24°C (75°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec252329374960635951423528
Data source: Temperature data for Honkajoki 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 Honkajoki

In Honkajoki in September, the precipitation amount is 75 mm (2.9 in) spread over 13 days.

September Precipitation Trends in Honkajoki

The chart displays monthly precipitation patterns in Honkajoki, 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 Honkajoki, September typically receives around 75 mm (2.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec4346484648657610875796966
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Honkajoki

In Honkajoki in September humidity is 86%. With an average temperature of 10°C (51°F), this humidity feels like a cool, damp blanket enveloping you, making traveling feel invigorating yet slightly uncomfortable without the right layers.

September Average Humidity in Honkajoki

This chart illustrates the average monthly humidity levels in Honkajoki, 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 Honkajoki is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%89%85%77%78%78%79%86%90%91%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Honkajoki

In Honkajoki 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 Honkajoki, you can check the information here.

Maximum UV Index Levels in Honkajoki for September

The chart shows the monthly maximum UV Index (UVI) for Honkajoki 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 Honkajoki typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Honkajoki 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 Honkajoki Compares to Other Months

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

This table compares monthly weather conditions in Honkajoki, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)43 mm (1.7 inches)92%low
February Weather-5°C (23°F)46 mm (1.8 inches)90%low
March Weather-2°C (29°F)48 mm (1.9 inches)89%moderate
April Weather3°C (38°F)46 mm (1.8 inches)85%moderate
May Weather9°C (49°F)48 mm (1.9 inches)77%moderate
June Weather16°C (60°F)64 mm (2.5 inches)78%high
July Weather17°C (63°F)76 mm (3.0 inches)78%high
August Weather15°C (60°F)108 mm (4.3 inches)79%moderate
September Weather10°C (51°F)75 mm (2.9 inches)86%moderate
October Weather5°C (42°F)79 mm (3.1 inches)90%low
November Weather2°C (35°F)68 mm (2.7 inches)91%low
December Weather-2°C (28°F)66 mm (2.6 inches)89%low

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