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January Weather in Kustavi, Finland

Last updated: August 23, 2025

In January, the average temperature in Kustavi, Finland hovers around 0°C (32°F), with lows reaching a chilly -13°C (9°F) and highs peaking at 7°C (45°F). Expect a precipitation amount of 46 mm (1.8 in) spread over about 10 days, contributing to an average humidity level of a notable 92%.

January Temperature in Kustavi

In January in Kustavi, the average temperature is 0°C (32°F). Maximums can reach 7°C (45°F), and minimums can be as low as -13°C (9°F). This chilly climate makes it essential for travelers to pack warm clothing and be prepared for cold weather conditions.

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

The chart illustrates January temperature patterns in Kustavi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kustavi, January typically has an average temperature of 0°C (32°F), with highs reaching up to 7°C (45°F) and lows dropping to around -13°C (9°F).
JanFebMarAprMayJunJulAugSepOctNovDec322932384657636356484235
Data source: Temperature data for Kustavi 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 Kustavi

In Kustavi in January, the precipitation amount is 46 mm (1.8 in) over the course of 10 days.

January Precipitation Trends in Kustavi

The chart displays monthly precipitation patterns in Kustavi, 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 Kustavi, January typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec4640402737364767771076987
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Kustavi

In Kustavi in January, humidity is 92%. With an average temperature of 0°C (32°F), this humidity feels like a heavy blanket enveloping you as you travel, making every step feel sluggish and the air thick with moisture, which can be both invigorating and exhausting at the same time.

January Average Humidity in Kustavi

This chart illustrates the average monthly humidity levels in Kustavi, 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 Kustavi is approximately 92%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Kustavi

In Kustavi 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 Kustavi.

Maximum UV Index Levels in Kustavi for January

The chart shows the monthly maximum UV Index (UVI) for Kustavi 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 Kustavi typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Kustavi 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 Kustavi Compares to Other Months

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

This table compares monthly weather conditions in Kustavi, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)46 mm (1.8 inches)92%low
February Weather-2°C (29°F)40 mm (1.6 inches)90%low
March Weather0°C (33°F)40 mm (1.6 inches)89%moderate
April Weather3°C (38°F)27 mm (1.1 inches)85%moderate
May Weather8°C (47°F)37 mm (1.5 inches)77%moderate
June Weather14°C (58°F)36 mm (1.4 inches)78%high
July Weather17°C (63°F)47 mm (1.9 inches)78%high
August Weather17°C (63°F)67 mm (2.6 inches)79%moderate
September Weather13°C (56°F)77 mm (3.0 inches)86%moderate
October Weather9°C (48°F)107 mm (4.2 inches)90%low
November Weather5°C (42°F)69 mm (2.7 inches)91%low
December Weather2°C (36°F)87 mm (3.4 inches)89%low

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