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January Weather in Nykarleby, Finland

Last updated: August 23, 2025

In Nykarleby, Finland, the average temperature in January hovers around -4°C (25°F). During this month, temperatures can dip as low as -25°C (-13°F), while highs can reach up to 7°C (45°F). Expect 36 mm (1.4 in) of precipitation spread over approximately 10 days, resulting in a 95% average humidity level that adds a chill to the air. Prepare to bundle up!

January Temperature in Nykarleby

In January in Nykarleby, the average temperature is -4°C (25°F). Maximum temperatures can reach 7°C (45°F), while minimums can drop as low as -25°C (-13°F). Travelers should be prepared for cold weather and dress accordingly to enjoy their visit.

January Weather in Nykarleby: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Nykarleby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nykarleby, January typically has an average temperature of -4°C (25°F), with highs reaching up to 7°C (45°F) and lows dropping to around -25°C (-13°F).
JanFebMarAprMayJunJulAugSepOctNovDec252228364658635951423528
Data source: Temperature data for Nykarleby 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.

January Precipitation in Nykarleby

In Nykarleby in January, the precipitation amount is 36 mm (1.4 in) over a span of 10 days.

January Precipitation Trends in Nykarleby

The chart displays monthly precipitation patterns in Nykarleby, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Nykarleby, January typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec364040404851638271835747
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Nykarleby

In Nykarleby in January humidity is 95%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that seeps into your bones, making outdoor travel uncomfortable and necessitating warm layers to combat the dampness.

January Average Humidity in Nykarleby

This chart illustrates the average monthly humidity levels in Nykarleby, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Nykarleby is approximately 95%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Nykarleby

In Nykarleby in January, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Nykarleby.

Maximum UV Index Levels in Nykarleby for January

The chart shows the monthly maximum UV Index (UVI) for Nykarleby in January, 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 January, the maximum UV index in Nykarleby typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Nykarleby January 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 January Weather in Nykarleby Compares to Other Months

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

This table compares monthly weather conditions in Nykarleby, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)36 mm (1.4 inches)95%low
February Weather-5°C (23°F)40 mm (1.6 inches)93%low
March Weather-2°C (29°F)40 mm (1.6 inches)91%moderate
April Weather2°C (37°F)40 mm (1.6 inches)85%moderate
May Weather8°C (47°F)48 mm (1.9 inches)77%moderate
June Weather15°C (59°F)51 mm (2.0 inches)74%high
July Weather17°C (63°F)63 mm (2.5 inches)80%high
August Weather15°C (60°F)82 mm (3.2 inches)82%moderate
September Weather11°C (51°F)71 mm (2.8 inches)88%moderate
October Weather6°C (42°F)83 mm (3.2 inches)92%low
November Weather1°C (35°F)57 mm (2.2 inches)92%low
December Weather-2°C (29°F)47 mm (1.9 inches)93%low

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