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January Weather in Olten, Switzerland

Last updated: August 27, 2025

In January, the average temperature in Olten, Switzerland hovers around 1°C (34°F), presenting a chilly atmosphere perfect for bundling up. Temperatures can dip to a frosty -12°C (11°F), while occasionally peaking at a mild 17°C (62°F). Expect precipitation of about 99 mm (3.9 in) spread over 12 days, contributing to the region's high humidity level of 92%. Stay prepared for both snowflakes and moisture-laden air!

January Temperature in Olten

In January in Olten, the average temperature is 1°C (34°F). Maximum temperatures can reach 17°C (62°F), while the minimum can drop as low as -12°C (11°F). Be prepared for a wide range of temperatures and pack accordingly for your travels in Olten during this time.

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

The chart illustrates January temperature patterns in Olten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olten, January typically has an average temperature of 1°C (34°F), with highs reaching up to 17°C (62°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec343843495565676659504036
Data source: Temperature data for Olten 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 Olten

In Olten in January, the total precipitation amount is 99 mm (3.9 in) recorded over a span of 12 days.

January Precipitation Trends in Olten

The chart displays monthly precipitation patterns in Olten, 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 Olten, January typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec9985100731501421651589110972133
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Olten

In Olten in January humidity is 92%. With average temperature 1°C (34°F), this humidity feels like a cold, damp blanket enveloping you, making travel uncomfortable as the chill seeps into your bones, and the air feels heavy and suffocating, leaving little room for any warmth or comfort.

January Average Humidity in Olten

This chart illustrates the average monthly humidity levels in Olten, 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 Olten is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Olten

In Olten in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Olten, you can visit Hourly UV Index in Olten.

Maximum UV Index Levels in Olten for January

The chart shows the monthly maximum UV Index (UVI) for Olten 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 Olten typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986422
Data source: Olten 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 Olten Compares to Other Months

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

This table compares monthly weather conditions in Olten, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)99 mm (3.9 inches)92%low
February Weather3°C (38°F)85 mm (3.3 inches)89%moderate
March Weather6°C (43°F)100 mm (4.0 inches)87%moderate
April Weather10°C (50°F)73 mm (2.9 inches)84%high
May Weather13°C (56°F)150 mm (5.9 inches)80%very high
June Weather18°C (65°F)142 mm (5.6 inches)82%very high
July Weather19°C (67°F)165 mm (6.5 inches)83%very high
August Weather19°C (66°F)158 mm (6.2 inches)80%very high
September Weather15°C (59°F)91 mm (3.6 inches)83%high
October Weather10°C (51°F)109 mm (4.3 inches)90%moderate
November Weather5°C (41°F)72 mm (2.8 inches)88%low
December Weather2°C (37°F)133 mm (5.2 inches)90%low

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