January Weather in Saillon, Switzerland

Last updated: August 27, 2025

In January, Saillon, Switzerland, experiences a frosty embrace with maximum temperatures reaching 8°C (46°F) and an average low plummeting to -8°C (18°F). This month is characterized by bitterly cold nights, where temperatures can dip as low as -26°C (-15°F). The landscape is often blanketed in a serene white, as 140 mm (5.5 in) of precipitation graces the area over 10 days, contributing to its winter charm. With a high humidity level of 91%, the air feels crisp and invigorating, making January an ideal month for winter enthusiasts to explore the enchanting beauty of Saillon.

January Temperature in Saillon

In January, Saillon, Switzerland experiences its coldest temperatures of the year, with minimums dipping as low as -26°C (-15°F). The average temperature hovers around -8°C (18°F), offering a stark reminder of winter's grip, but it also reaches a maximum of 8°C (46°F), hinting at the brief warmth that occasionally sneaks in. This chilly month sets the tone for the subsequent winter weeks, where temperatures gradually rise in February, resulting in a greater range of -21°C (-5°F) to 12°C (55°F). While January is undeniably cold, it serves as a prelude to slightly milder weather as spring approaches, illustrating a crucial transition in Saillon’s climate.

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

The chart illustrates January temperature patterns in Saillon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saillon, 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).
JanFebMarAprMayJunJulAugSepOctNovDec182631394555575750423121
Data source: Temperature data for Saillon 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 Saillon

In January, Saillon, Switzerland, experiences a precipitation total of 140 mm (5.5 in) over approximately 10 days, marking the month's relatively moderate wetness compared to other winter months. This sets the stage for a transition as the resort moves into February, where rainfall slightly decreases to 108 mm (4.3 in) but takes place over 11 days, hinting at a gradual shift in weather patterns. Interestingly, March sees a slight rebound with 135 mm (5.3 in), suggesting that winter lingering in the region brings a mix of moisture before the spring thaw. As spring approaches, April's drier conditions yield just 87 mm (3.4 in), but the fluctuating trend continues into May, where precipitation dramatically increases to 191 mm (7.5 in), showcasing the influence of warmer months that follow. While January's precipitation sets a lively tone for the year, it is clear that Saillon's climate presents dynamic changes, paving the way for both wet winter days and lush spring blooms ahead.

January Precipitation Trends in Saillon

The chart displays monthly precipitation patterns in Saillon, 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 Saillon, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec14010813587191177182173113131101214
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Saillon

In January, Saillon, Switzerland experiences its peak humidity at an impressive 91%, setting the tone for the winter months. The humidity remains relatively high throughout the season, with February and March showing slight decreases to 89% and 87%, respectively. As spring approaches, a gradual decline continues, with April hitting 84% and May dropping further to 80%. This trend of decreasing humidity carries through to the summer, where levels stabilize at around 82% for both June and July, before dipping to 77% in August, indicating a more comfortable atmosphere. Fall brings a resurgence in humidity, with September rising to 81%, and both October and November returning to the higher levels of 89%. As the year concludes in December, humidity climbs back to 91%, showcasing a cyclical pattern that reflects the region's distinctive seasonal changes.

January Average Humidity in Saillon

This chart illustrates the average monthly humidity levels in Saillon, 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 Saillon is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Saillon

In January, Saillon, Switzerland experiences a low UV Index of 2, which means sun protection is generally not a concern, allowing for a safe 45 minutes of sun exposure before risking a burn. As the months progress into February, the UV Index rises to 4, representing a moderate exposure level, where protective measures become more important, reducing safe exposure time to 30 minutes. By March, however, the conditions significantly shift, with the UV Index soaring to 7, leading to a high exposure risk and a burn time dropping to just 25 minutes. This upward trend continues into April and May, hitting a staggering index of 9 in May, where outdoor activities require diligent sun protection due to the very high exposure level and minimal burn time. The peak occurs in June and July at an index of 10, showcasing the heightened risk of overexposure. Interestingly, as summer wanes, the UV Index gradually subsides, signaling a shift back to moderate levels with February's index lower than January's as autumn approaches. For more detailed insights about UV levels throughout the year, visit Saillon UV Index.

Maximum UV Index Levels in Saillon for January

The chart shows the monthly maximum UV Index (UVI) for Saillon 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 Saillon typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: Saillon 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 Saillon

In January, Saillon, Switzerland welcomes the year with 172 hours of sunshine, a gentle start to winter as the days slowly begin to lengthen. This trend continues into February, with a noticeable increase to 233 hours, heralding the approach of spring. By March, the sunlight further expands to 299 hours, reflecting the awakening of the landscape as winter gives way to new life. The sun's embrace reaches its peak in the summer months, with July boasting a radiant 416 hours—the sunniest month in Saillon. As autumn approaches, sunshine levels gradually taper off, yet remain vibrant, with 325 hours in September and 288 hours in October. Despite the slipping temperatures, winter brings a cozy atmosphere, while November and December provide a softer glow with 231 and 200 hours respectively, marking the year's final days. This seasonal dance of sunlight not only enhances Saillon's charm but also invites visitors to bask in its diverse natural beauty throughout the year.

Monthly Sunshine Duration in Saillon: January Highlighted

The January sunshine duration represents the total number of hours Saillon 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.
JanFebMarAprMayJunJulAugSepOctNovDec172h233h299h355h355h390h416h385h325h288h231h200h
Data source: Saillon January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saillon During January

In January, Saillon, Switzerland, experiences a modest 22% chance of sunny weather, making it one of the cloudier months of the year. This lower likelihood is part of a gradual increase in sunshine as the seasons transition; February sees a jump to 39%, while March and April further improve the prospects with 42% and 44% of sunny days, respectively. As spring unfurls, the chances of sunshine peak in early summer, reaching around 31% to 36% from June to August. This trend illustrates a clear progression towards brighter days as winter wanes, inviting visitors to look forward to sunnier skies as they plan their winter escapes.

Percentage of Sunny Days in January in Saillon

The chart illustrates the percentage of sunny days in Saillon 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 Saillon experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%39%43%45%30%31%33%36%33%45%37%41%
Data source: Saillon January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saillon in January

In January, Saillon, Switzerland, experiences about 9 hours of daylight, marking the winter's grip before a gradual shift towards longer days. As the calendar turns to February, daylight extends to 10 hours, a hint of the approaching spring. This trend continues with March bringing 11 hours, and by April, daylight stretches to a welcoming 13 hours. The momentum peaks in the summer months, as June and July bask in 15 hours of sunshine, offering the longest days of the year. Following this radiant peak, daylight begins to recede gently, with August still enjoying 14 hours, while September sees a drop to 12 hours. By October, daylight decreases to 10 hours, further dwindling as winter approaches, reaching 9 hours in November and ultimately descending to just 8 hours in December. This cycle not only highlights the natural rhythm of the seasons but also paints a vivid picture of life in Saillon, as residents and visitors alike adjust to the ebb and flow of daylight throughout the year.

Average Daylight Hours in Saillon for January

The chart illustrates the variation in daylight duration in Saillon throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 4m10h 20m11h 56m13h 34m14h 59m15h 42m15h 19m14h 4m12h 29m10h 51m9h 25m8h 40m
Data source: Saillon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Saillon

In Saillon, Switzerland, January ushers in a gentle breeze with an average wind speed of 1.3 m/s (3 mph). This tranquil climate sets the tone for the month, as the wind remains consistently mild throughout the early part of the year, fluctuating slightly in February before dipping to 1.1 m/s in March and April. As the seasons transition, the wind speed generally hovers around 1.0 to 1.2 m/s from June to September, reflecting a serene summer atmosphere. By November and December, the winds regain a slight vigor, returning to 1.3 m/s and 1.5 m/s, respectively. Overall, the wind patterns in Saillon are characterized by their gentle consistency, providing a peaceful backdrop to the stunning Swiss landscape.

Average January Wind Speed in Saillon

The chart displays monthly wind speed patterns in Saillon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.3 m/s1.51.11.11.21.01.11.11.01.21.31.5
Data source: Saillon January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Saillon Compares to Other Months

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

In comparing the weather conditions of January and February, January typically experiences harsher temperatures, with a minimum of -26°C (-15°F) and an average of -8°C (18°F), while February shows a milder trend with a minimum of -21°C (-5°F) and an average of -4°C (26°F). The maximum temperatures also rise in February to 12°C (55°F) compared to January’s 8°C (46°F). Despite having more days of precipitation in February (11 days) versus January (10 days), the overall precipitation amounts slightly decrease from 140 mm (5.5 in) in January to 108 mm (4.3 in) in February, accompanied by a slight drop in humidity from 91% to 89%. For more detailed insights, check Saillon weather in February.

In January, temperatures can reach as low as -26°C (-15°F), with an average of -8°C (18°F) and a maximum of 8°C (46°F). The month sees around 140 mm (5.5 in) of precipitation over approximately 10 days, coupled with high humidity levels at 91%. In contrast, March brings milder temperatures, ranging from a minimum of -24°C (-11°F) to an average of 0°C (31°F), peaking at 16°C (60°F). Although it still experiences significant precipitation at 135 mm (5.3 in) over 15 days, humidity drops slightly to 87%. For more detailed insights into March weather, you can visit Saillon weather in March.

January and April present a stark contrast in weather conditions. In January, temperatures can plunge to a minimum of -26°C (-15°F), with an average temperature around -8°C (18°F) and a maximum of 8°C (46°F). This month typically experiences 140 mm (5.5 in) of precipitation over about 10 days, accompanied by high humidity at 91%. In comparison, April sees a significant shift, with minimum temperatures around -17°C (3°F) and an average of 4°C (39°F), peaking at 19°C (66°F). Although April receives less precipitation at 87 mm (3.4 in) over approximately 12 days, the humidity dips to 84%. The transition from the frigid grip of January to the milder, more temperate April can be further explored in detail here: Saillon weather in April.

In comparing the weather of January and May, January is characterized by much colder temperatures, with average lows around -8°C (18°F) and a maximum of just 8°C (46°F). In contrast, May sees a significant warmth surge, with temperatures ranging from a minimum of -14°C (7°F) to a pleasant maximum of 24°C (75°F), showcasing the transition into spring. Precipitation is also noteworthy, as January experiences about 140 mm (5.5 in) over 10 days, while May is slightly wetter with 191 mm (7.5 in) spread over 20 days. Additionally, humidity levels are higher in January at 91%, compared to 80% in May, reflecting the slightly drier conditions as the season progresses. For more detailed insights, check out Saillon weather in May.

In January, temperatures can plummet to a chilling minimum of -26°C (-15°F), with an average of -8°C (18°F) and a maximum reaching only 8°C (46°F). The month sees significant precipitation, totaling about 140 mm (5.5 in) over approximately 10 days, accompanied by high humidity levels of 91%. In contrast, June offers a much milder climate, with minimum temperatures around -3°C (27°F) and an average of 13°C (55°F), peaking at a warm 28°C (83°F). While precipitation increases to 177 mm (7.0 in) over 18 days, the humidity remains slightly lower at 82%. For a closer look at what to expect during the warmest month, visit Saillon weather in June.

In January, temperatures in Saillon can plummet to a chilly minimum of -26°C (-15°F), with an average around -8°C (18°F) and a maximum of only 8°C (46°F). The month is marked by high humidity at 91% and significant precipitation, averaging 140 mm (5.5 in) over about 10 days. In contrast, July brings much milder conditions, with temperatures ranging from a minimum of 1°C (35°F) to a pleasant average of 14°C (58°F) and highs reaching 28°C (82°F). The summer month also sees increased rainfall, totaling 182 mm (7.2 in) over approximately 17 days, although humidity is slightly lower at 82%. For more details about the weather in July, visit Saillon weather in July.

January and August present stark contrasts in weather. In January, temperatures plunge with a minimum of -26°C (-15°F) and an average of -8°C (18°F), reaching a maximum of 8°C (46°F). The month sees considerable precipitation, totaling 140 mm (5.5 in) over approximately 10 days, coupled with high humidity at 91%. In contrast, August enjoys a milder climate with minimum temperatures around 2°C (36°F), an average of 14°C (57°F), and maximums soaring to 27°C (80°F). Precipitation in August is slightly higher, at 173 mm (6.8 in) across 17 days, but humidity is lower at 77%. For more details on August weather, visit Saillon weather in August.

January and September present contrasting weather conditions. In January, temperatures plunge to a minimum of -26°C (-15°F), with an average of -8°C (18°F) and a maximum of 8°C (46°F). This month experiences high humidity at 91% and significant precipitation, amounting to 140 mm (5.5 in) over about 10 days. In stark contrast, September boasts milder temperatures, ranging from a minimum of -6°C (22°F) to an average of 10°C (50°F) and peaking at 23°C (73°F). Although the precipitation is lower at 113 mm (4.5 in), it occurs over a greater number of days (15), with humidity at a more comfortable 81%. For more detailed insights on September weather, visit Saillon weather in September.

January and October present strikingly different weather patterns. In January, temperatures can plummet to a minimum of -26°C (-15°F), with an average of -8°C (18°F) and a maximum of 8°C (46°F), while October brings milder conditions, featuring a minimum of -6°C (22°F) and an average of 6°C (43°F). Precipitation levels are relatively similar, with January receiving 140 mm (5.5 in) over 10 days and October slightly lower at 131 mm (5.2 in) across 13 days. Additionally, humidity remains high in both months, with January at 91% and October at 89%, contributing to October's more temperate yet damp feel. For specific insights into October weather, you can refer to Saillon weather in October.

January and November present stark contrasts in weather conditions. In January, the average temperature hovers around -8°C (18°F), with minimums reaching a chilling -26°C (-15°F) and maximums only climbing to 8°C (46°F). This month experiences significant precipitation of 140 mm (5.5 in) over approximately 10 days, combined with high humidity at 91%. In contrast, November offers slightly milder temperatures, with an average of -1°C (31°F), a minimum of -20°C (-4°F), and a maximum of 16°C (61°F). Although precipitation is lower at 101 mm (4.0 in) over 13 days, humidity remains nearly as high at 89%. For more insights, check out Saillon weather in November.

In comparing the weather between January and December, both months experience frigid temperatures, but January is slightly milder overall. January brings minimum temperatures around -26°C (-15°F) with an average of -8°C (18°F), whereas December often reaches even lower, with minimums dropping to -29°C (-21°F) and an average of -6°C (21°F). Precipitation is notably higher in December, with 213 mm (8.4 in) over 16 days compared to January's 140 mm (5.5 in) over 10 days. Interestingly, both months maintain a humidity level of 91%, contributing to the cold, damp conditions. For more specifics on the weather during December, you can explore Saillon weather in December.

Compare Saillon's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Saillon

January in Saillon is a month characterized by its chilly temperatures and high humidity, offering a stark contrast to the milder conditions found in other months. With a typical average well below freezing, visitors can expect a significant drop in warmth, making it ideal for those who enjoy winter's embrace. The increased precipitation, often manifesting as snow, can lead to picturesque landscapes, although it also means more frequent wet days. For a comprehensive understanding of how January's weather shapes the climate in Saillon, explore the details here: Saillon Climate.