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September Weather in Kristinestad, Finland

Last updated: August 23, 2025

In Kristinestad, Finland, the average temperature in September hovers around 11°C (52°F). However, temperatures can fluctuate significantly, with a minimum of -1°C (30°F) and a maximum of 24°C (75°F). Expect about 74 mm (2.9 in) of precipitation spread over 12 days, accompanied by high humidity at 88%. Whether you're exploring the sights or enjoying a cozy moment indoors, be prepared for some varied weather!

September Temperature in Kristinestad

In September in Kristinestad, the average temperature is 11°C (52°F). The maximum can reach 24°C (75°F), while the minimum can drop to as low as -1°C (30°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates September temperature patterns in Kristinestad, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kristinestad, September typically has an average temperature of 11°C (52°F), with highs reaching up to 24°C (75°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec262430384860646052433629
Data source: Temperature data for Kristinestad 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 Kristinestad

In Kristinestad in September, the precipitation amount is 74 mm (2.9 in) over a span of 12 days.

September Precipitation Trends in Kristinestad

The chart displays monthly precipitation patterns in Kristinestad, 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 Kristinestad, September typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4145453938537010174806064
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kristinestad

In Kristinestad in September, humidity is 88%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and the air feel thick, encouraging you to seek shelter or stay hydrated as you explore.

September Average Humidity in Kristinestad

This chart illustrates the average monthly humidity levels in Kristinestad, 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 Kristinestad is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%91%85%77%75%80%82%88%92%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kristinestad

In Kristinestad 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 Kristinestad, you can check the information here.

Maximum UV Index Levels in Kristinestad for September

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

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

This table compares monthly weather conditions in Kristinestad, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)41 mm (1.6 inches)95%low
February Weather-4°C (25°F)45 mm (1.8 inches)93%low
March Weather-1°C (30°F)45 mm (1.8 inches)91%moderate
April Weather3°C (38°F)39 mm (1.5 inches)85%moderate
May Weather9°C (49°F)38 mm (1.5 inches)77%moderate
June Weather16°C (60°F)53 mm (2.1 inches)74%high
July Weather18°C (64°F)70 mm (2.8 inches)80%high
August Weather16°C (60°F)101 mm (4.0 inches)82%moderate
September Weather11°C (52°F)74 mm (2.9 inches)88%moderate
October Weather6°C (43°F)80 mm (3.1 inches)92%low
November Weather2°C (36°F)60 mm (2.4 inches)92%low
December Weather-1°C (30°F)64 mm (2.5 inches)93%low

Compare Kristinestad's Climate with Cities Worldwide