January Weather in Sankt Gallen, Switzerland

Last updated: August 27, 2025

In January, Sankt Gallen, Switzerland, experiences a diverse range of temperatures, with highs reaching a mild 14°C (57°F) and lows plunging to -14°C (7°F). The average temperature hovers around 0°C (33°F), creating a crisp winter atmosphere. With 106 mm (4.2 in) of precipitation falling over 12 days, residents and visitors can expect consistent moisture, which contributes to the region's lush landscapes. The month is marked by a high humidity level of 92%, enhancing the chilly air and creating a distinct, invigorating winter charm perfect for exploring the picturesque surroundings.

January Temperature in Sankt Gallen

In January, Sankt Gallen experiences a chill that sets the stage for its winter landscape, with temperatures ranging from a biting -14°C (7°F) to a more moderate 14°C (57°F). The average temperature hovers around 0°C (33°F), indicating a month marked by frosty mornings and potentially mild afternoons as the sun breaks through. As the month progresses into February, we see a slight rise in temperatures, reaching an average of 2°C (37°F), though the sharp lows remain consistent, only easing a degree. This pattern of cold nights and gradually warming days continues through March, where temperatures further increase to an average of 5°C (42°F), hinting at the impending arrival of spring. Overall, January serves as a dramatic yet beautiful freeze frame, with the glimmer of milder days just around the corner, perfectly encapsulating the transition of Sankt Gallen’s winter into a soft thawing.

January Weather in Sankt Gallen: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sankt Gallen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sankt Gallen, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec333642495565666659514136
Data source: Temperature data for Sankt Gallen generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Sankt Gallen

January in Sankt Gallen witnesses a notable precipitation total of 106 mm (4.2 in), marking it as one of the wetter months of the year. With rainfall occurring across 12 days, this month sets the stage for the damp winter season, slightly outperforming February's average of 85 mm. As the winter progresses, the precipitation begins to follow a pattern of increasing amounts peaking in the summer months, particularly August, which boasts 194 mm (7.7 in) and 17 rainy days. This trend underscores a distinct shift from the relatively milder January weather, moving towards the lush, wet conditions of late spring and summer, ultimately enhancing Sankt Gallen's picturesque landscapes.

January Precipitation Trends in Sankt Gallen

The chart displays monthly precipitation patterns in Sankt Gallen, 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 Sankt Gallen, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec106851007914716915919512811972135
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Sankt Gallen

January in Sankt Gallen, Switzerland, experiences a notably high humidity level of 92%, making it one of the most humid months of the year. This peak in humidity sets the tone for a winter characterized by damp air, which gradually decreases in February to 89%. As spring approaches, humidity levels continue to decline, reaching 84% in April. However, there's a slight uptick during the summer months, with July and August hovering around 83% and 80%, respectively. Interestingly, as the year wraps up, humidity rises again, reaching 90% in both October and December. Overall, while January showcases the year’s highest humidity, a clear trend of seasonal variation emerges, with a distinct drop during the transition from winter to spring followed by a return to dampness in the late fall and winter months.

January Average Humidity in Sankt Gallen

This chart illustrates the average monthly humidity levels in Sankt Gallen, 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 Sankt Gallen is approximately {2}%, 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 Sankt Gallen

In January, Sankt Gallen experiences a low UV Index of 2, allowing for a comfortable 45 minutes of sun exposure before burning occurs. As the year progresses into February, the UV Index rises slightly to 3, indicating a moderate exposure level and reducing safe sun exposure to 30 minutes. By March, the UV Index climbs to 5, where the risk remains moderate, but with the same burn time of 30 minutes. April marks a significant shift as the UV Index hits 6, categorized as high, leading to a shorter burn time of 25 minutes. The peak of sun intensity is felt in May and June, with UV Index readings of 8 and 9, both classified as very high, suggesting sun protection is crucial with a mere 15 minutes of safe exposure. This trend continues into July and August, before tapering off in September, where the index drops to 6. As the year ends, the UV Index falls back to 2 in November and drops to 1 by December, reinstating the low exposure category with a generous burn time of 45 minutes. To explore more about the UV Index patterns throughout the year, visit Sankt Gallen UV Index.

Maximum UV Index Levels in Sankt Gallen for January

The chart shows the monthly maximum UV Index (UVI) for Sankt Gallen 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 Sankt Gallen typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Sankt Gallen 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.

January Sunshine in Sankt Gallen

In January, Sankt Gallen greets the year with a modest 150 hours of sunshine, setting the stage for a gradual increase as winter transitions into spring. By February, this number rises to 218 hours, hinting at the approaching warmth. March continues this promising trend, offering 287 hours of sunshine, while April and May see significantly more light with 349 and 356 hours, respectively. The peak arrives in July, basking in an impressive 404 hours of sunlight, inviting locals and visitors alike to enjoy the outdoors. As the summer draws to a close, August still holds strong with 372 hours, but September marks a gentle decline to 315 hours. This pattern continues into the fall months, with October receiving 269 hours, followed by November and December, which bring shorter days at 200 hours and 168 hours, respectively. Overall, the sunshine hours reflect a vibrant seasonal rhythm, showcasing Sankt Gallen's delightful blossoming in the warmer months.

Monthly Sunshine Duration in Sankt Gallen: January Highlighted

The January sunshine duration represents the total number of hours Sankt Gallen experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec150h218h287h349h356h378h404h372h315h269h200h168h
Data source: Sankt Gallen January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sankt Gallen During January

In Sankt Gallen, Switzerland, the likelihood of enjoying sunny weather in January is quite modest, with a mere 17% chance of sunshine. This starkly contrasts with the brighter prospects of the following months, where February sees an increase to 39%, and by March, the likelihood of sunny days rises further to 42%. As spring approaches, April boasts an even more inviting 47% chance of sun, indicating a clear trend of improving weather as the year progresses. However, the chances dip again in May with 34%, and linger around this percentage through the summer months before climbing back up in September. Overall, January remains one of the cloudier months, with a gradual but notable transition to sunnier days as winter gives way to spring.

Percentage of Sunny Days in January in Sankt Gallen

The chart illustrates the percentage of sunny days in Sankt Gallen throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Sankt Gallen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%39%42%47%34%34%33%34%43%34%24%27%
Data source: Sankt Gallen January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sankt Gallen in January

In January, Sankt Gallen experiences about 8 hours of daylight, setting a stark contrast to the longer days that follow. As winter yields to early spring, daylight gradually increases, reaching 10 hours by February, and continuing to extend to 11 hours in March. The trend accelerates through the spring months, bringing 13 hours by April and peaking at 15 hours in both May and June. This abundance of daylight characterizes the vibrant summer months, perfect for outdoor activities. However, as the year progresses, a gentle decline begins; daylight tapers off to 14 hours in August and gradually descends to 12 hours in September. By autumn, the days shorten again, returning to 10 hours in October, and dwindling further to 9 hours in November, before settling back at 8 hours in December. This cyclical pattern of daylight in Sankt Gallen not only marks the changing seasons but also invites residents to appreciate the nuances of each month throughout the year.

Average Daylight Hours in Sankt Gallen for January

The chart illustrates the variation in daylight duration in Sankt Gallen throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 55m10h 15m11h 56m13h 39m15h 7m15h 53m15h 29m14h 10m12h 30m10h 48m9h 17m8h 29m
Data source: Sankt Gallen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Sankt Gallen

In January, Sankt Gallen embraces a gentle breeze, with an average wind speed of 2.3 m/s (5 mph), making it one of the most blustery months of the year. This winter wind sets the stage for the shift towards milder conditions as the year progresses. Gradually, the wind speeds tend to dip through February and June, hitting a low of just 1.7 m/s (4 mph) in the early summer months. However, an uptick follows in May, where gusts reach 2.6 m/s (6 mph), hinting at the lively atmosphere of spring. As the year draws to a close, the wind speeds stabilize around 2.0 m/s (5 mph) in December, suggesting a consistent rhythm in Sankt Gallen's climate. This pattern reveals not only the comforting embrace of winter but also the gentle transition into spring, shaping a charming, breezy narrative throughout the year.

Average January Wind Speed in Sankt Gallen

The chart displays monthly wind speed patterns in Sankt Gallen, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.3 m/s1.92.02.12.61.71.81.81.61.71.82.0
Data source: Sankt Gallen January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Sankt Gallen Compares to Other Months

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

January and February showcase distinct weather patterns, with February generally being milder than January. In January, temperatures can plunge to a minimum of -14°C (7°F) and typically hover around an average of 0°C (33°F), with highs reaching up to 14°C (57°F). This month also sees considerable precipitation, amounting to 106 mm (4.2 in) over about 12 days, alongside high humidity at 92%. In contrast, February offers a slightly warmer experience with minimum temperatures around -13°C (9°F) and an average that rises to 2°C (37°F), peaking at 18°C (65°F). The precipitation decreases to 85 mm (3.3 in) while maintaining similar rainy days at 12 and a slightly lower humidity of 89%. For more details on February's weather, you can check Sankt Gallen weather in February.

In comparing the weather of January and March, we see a notable shift in temperatures and trends. January experiences a chilly range with temperatures dipping as low as -14°C (7°F) and averaging around 0°C (33°F), while March brings a slightly warmer atmosphere, with an average temperature of 5°C (42°F) and a maximum reaching 19°C (66°F). Precipitation levels are similar, with January receiving 106 mm (4.2 in) over 12 days, and March slightly less at 100 mm (3.9 in) but spread over a longer duration of 16 days. Additionally, humidity in January is higher at 92%, compared to March's 87%. For a detailed look at the weather specifics in March, you can explore Sankt Gallen weather in March.

In comparing the weather between January and April, a notable shift in temperatures and overall conditions can be seen. January experiences much colder temperatures, with a minimum drop to -14°C (7°F) and an average of 0°C (33°F), while April shows a warmer climate, with minimums of -6°C (22°F) and an average of 9°C (49°F). Precipitation during January totals 106 mm (4.2 in) over 12 days, compared to April's 79 mm (3.1 in) across 11 days, indicating relatively drier conditions as spring approaches. Additionally, January’s humidity is higher at 92%, contrasted with April’s humidity of 84%. For more detailed information, you can visit Sankt Gallen weather in April.

The weather in January and May presents a striking contrast. In January, temperatures fluctuate from a chilly -14°C (7°F) to a maximum of 14°C (57°F), with an average of 0°C (33°F). This month experiences significant precipitation, totaling 106 mm (4.2 in) across about 12 days, along with high humidity of 92%. In contrast, May brings a marked warming trend, with temperatures ranging from a minimum of 0°C (32°F) to a pleasant max of 29°C (85°F) and an average of 13°C (56°F). While precipitation increases to 147 mm (5.8 in) over 17 days, the humidity drops to a more comfortable 80%. For those interested in the details of May weather in this region, check out Sankt Gallen weather in May.

In January, the weather is characterized by frigid temperatures, ranging from a chilling minimum of -14°C (7°F) to a maximum of 14°C (57°F), with an average temperature around 0°C (33°F). The month sees significant precipitation, with 106 mm (4.2 in) falling over 12 days, and high humidity levels at 92%.

Conversely, June offers a much more temperate climate, with temperatures soaring between a minimum of 7°C (44°F) and a maximum of 32°C (91°F), averaging about 18°C (65°F). Although June has a higher total precipitation of 168 mm (6.6 in) across 17 days, the humidity is slightly lower at 82%. For a deeper dive into the summer climate specifics, check out Sankt Gallen weather in June.

In January, the weather is notably chilly, with temperatures ranging from a frigid minimum of -14°C (7°F) to a maximum of 14°C (57°F), averaging around 0°C (33°F). The month experiences significant precipitation, totaling 106 mm (4.2 in) over about 12 days, combined with high humidity levels at 92%. Conversely, July presents a much milder climate, with temperatures fluctuating between a minimum of 10°C (51°F) and a maximum of 33°C (91°F), averaging 19°C (67°F). Although July receives more rainfall at 159 mm (6.3 in) over approximately 18 days, the humidity is slightly lower at 83%. For a detailed look at summer conditions, check out Sankt Gallen weather in July.

January and August present contrasting weather conditions that highlight the seasonal shifts. In January, temperatures can plunge to a minimum of -14°C (7°F), with an average around 0°C (33°F) and a maximum of 14°C (57°F). This winter month sees significant precipitation, with about 106 mm (4.2 in) over 12 days, accompanied by high humidity at 92%. In stark contrast, August delivers milder temperatures with a low of 9°C (49°F), an average of 19°C (66°F), and peaks reaching 33°C (91°F). Precipitation in August is more pronounced, totaling 194 mm (7.7 in) over 17 days, though humidity is a bit lower at 80%. For a closer look at what to expect, check out Sankt Gallen weather in August.

January and September in Sankt Gallen reveal a significant contrast in weather conditions. January's temperatures can plummet to a chilling minimum of -14°C (7°F), with an average hovering around 0°C (33°F) and a maximum reaching 14°C (57°F). The month is characterized by high humidity levels at 92% and moderate precipitation of 106 mm (4.2 in) over 12 days. In stark contrast, September brings milder weather, with temperatures ranging from a comfortable minimum of 4°C (40°F) to a pleasant maximum of 27°C (80°F), averaging 15°C (59°F). Precipitation slightly increases to 128 mm (5.0 in) over 13 days, yet humidity drops to 83%, making it feel much more inviting. For more details, you can check Sankt Gallen weather in September.

In January, temperatures can drop significantly, with minimums reaching -14°C (7°F) and an average of 0°C (33°F), while October offers a milder experience, with temperatures ranging from a minimum of 2°C (35°F) to a comfortable average of 10°C (51°F). January sees a total of 106 mm (4.2 in) of precipitation over 12 days, while October has slightly higher precipitation at 119 mm (4.7 in) but over 14 days. Additionally, humidity remains high in both months, with January at 92% and October at 90%. For more detailed information about the weather conditions in October, visit Sankt Gallen weather in October.

In comparison to January, November experiences milder temperatures, with average lows of -2°C (29°F) and highs reaching 19°C (67°F), compared to January's extremes of -14°C (7°F) minimum and up to 14°C (57°F) maximum. While both months see a similar number of precipitation days, November receives significantly less rainfall, totaling 72 mm (2.8 in) compared to January's 106 mm (4.2 in). Humidity levels also differ slightly, with January at 92% and November at 88%, contributing to the overall perception of November as a more pleasant time of year. For more details, check out Sankt Gallen weather in November.

In January, temperatures in Sankt Gallen reach a minimum of -14°C (7°F) and an average of 0°C (33°F), showing a marked chill compared to December, where the minimum hovers at -7°C (19°F) and the average is slightly warmer at 2°C (36°F). January also experiences more extreme highs, with temperatures peaking at 14°C (57°F), while December's maximum is a bit lower at 12°C (54°F). Precipitation in January is somewhat lower at 106 mm (4.2 in) over 12 days, compared to December's 135 mm (5.3 in) across 18 days, making January drier despite its colder average. Humidity levels are slightly elevated in January at 92%, compared to December's 90%. For more detailed insights regarding December weather, you can check Sankt Gallen weather in December.

Compare Sankt Gallen's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Sankt Gallen

As January unfolds in Sankt Gallen, the city's weather takes a notable turn compared to the milder months. With maximum temperatures peaking at a chilly 14°C and an average hovering around freezing, this month significantly contrasts the warmer seasons. The cold can dip even further, bringing frosty nights that reach down to -14°C. Additionally, January tends to be wetter, with over 100 mm of precipitation recorded across multiple days, amplifying the already high humidity at 92%. This combination creates a distinctly brisk atmosphere, setting the stage for a winter wonderland that invites both adventure and cozy indoor retreats. For those interested in a deeper understanding of weather patterns throughout the year, be sure to explore the Sankt Gallen Climate page.