December Weather in Saillon, Switzerland

Last updated: August 27, 2025

Saillon, Switzerland, experiences a chilly December, with temperatures ranging from a maximum of 8°C (46°F) to a minimum of -29°C (-21°F), creating a winter wonderland atmosphere. The average temperature settles around -6°C (21°F), making it crucial for visitors to bundle up and enjoy the crisp air. This month witnesses notable precipitation, totaling 213 mm (8.4 in) over 16 days, which contributes to the region's lush landscapes. With humidity at a high 91%, the air is often thick with mist, enhancing the enchanting winter scenery. Embrace the allure of Saillon’s December as nature wraps the village in a serene, frosty embrace.

December Temperature in Saillon

In Saillon, Switzerland, December ushers in the coldest temperatures of the year, with a minimum dropping to a frigid -29°C (-21°F). Despite this sharp decline, the average temperature sits at a chilly -6°C (21°F), making it one of the frostiest months, yet still slightly warmer than January’s extremes. During this time, maximum daytime temperatures reach around 8°C (46°F), providing brief respites from the severe cold. The transition into winter becomes evident as the deep freeze contrasts sharply with the milder autumn temperatures, setting a clear trend towards chilling winter conditions. As snowflakes begin to blanket the picturesque landscapes, Saillon embraces its enchanting winter charm, inviting visitors to experience the beauty of this alpine village amidst its frost-kissed vistas.

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

The chart illustrates December 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, December 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.

December Precipitation in Saillon

In December, Saillon experiences a significant uptick in precipitation, recording 213 mm (8.4 in), making it the wettest month of the year. This surge is reflected in the 16 days of rainfall, marking a noticeable increase compared to the preceding months. As winter settles in, the region sees a consistent pattern of moisture, contributing to a lush landscape during the colder season. Notably, December's precipitation is a stark contrast to the relatively drier spells of early spring and late autumn, highlighting the region's dynamic climate. The rich December rainfall not only shapes the local environment but also sets the stage for the lush growth that characterizes the Swiss countryside in the following months.

December Precipitation Trends in Saillon

The chart displays monthly precipitation patterns in Saillon, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Saillon, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec14010813587191177182173113131101214
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saillon

In Saillon, Switzerland, December brings a return to higher humidity levels, measuring 91%—the same as January. This trend marks a seasonal shift, as the month is consistently on the wetter side, aligning with the patterns observed in late fall and early winter. In fact, from October through December, humidity levels remain elevated, hovering around the 89% mark, which contrasts with the drier summer months of July and August. As the year wraps up, the consistent humidity combined with the cooler temperatures enhances the crisp, fresh air of this picturesque Swiss village, providing a unique charm during the winter season.

December Average Humidity in Saillon

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

December UV Index in Saillon

As winter settles over Saillon, Switzerland, December brings a UV Index of 2, categorizing exposure as low. With a burn time of 45 minutes, this month provides a welcome respite from the high UV levels experienced in the summer, where indices soared to 10. The trend throughout the year shows a gradual increase in UV exposure from January's moderate levels, peaking in the sun-drenched months of May through August. As the year winds down, the lower UV index in December is ideal for those looking to enjoy the crisp winter air without the worry of sunburn. For more detailed insights on UV levels throughout the year, check out the Saillon UV Index.

Maximum UV Index Levels in Saillon for December

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

December Sunshine in Saillon

In December, Saillon, Switzerland, basks in a delightful 200 hours of sunshine, marking a gentle descent from the sun-drenched days of summer. As December arrives, the sunlight begins to wane compared to the 416 hours of July, yet it still offers a cozy glow that brightens the crisp winter air. This month not only serves as a transition into the chillier depths of winter but also showcases a vibrant contrast to the earlier months, where sunshine peaks in April and May at a radiant 355 hours. As the year draws to a close, December's moderate sunshine invites locals and visitors alike to enjoy the scenic beauty of Saillon, making it a charming backdrop for reflective strolls through idyllic landscapes.

Monthly Sunshine Duration in Saillon: December Highlighted

The December sunshine duration represents the total number of hours Saillon experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec172h233h299h355h355h390h416h385h325h288h231h200h
Data source: Saillon December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saillon During December

In Saillon, Switzerland, December enjoys a notable sunny disposition with a 41% chance of sunshine, positioning it comfortably within the higher range of the year's sunlit opportunities. While the winter months generally offer less sunlight, December stands out as more favorable compared to some earlier months like January and May. Trends indicate a gradual increase in sunlight as the year progresses, peaking in late spring; however, December provides a reassuring glimpse of brightness against the backdrop of winter's chill, making it a charming time for both residents and visitors to appreciate the beauty of the season.

Percentage of Sunny Days in December in Saillon

The chart illustrates the percentage of sunny days in Saillon throughout the year, with December 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 December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saillon in December

In Saillon, Switzerland, the rhythm of daylight unfolds dramatically throughout the year. As winter approaches in December, the days shrink to a modest 8 hours of daylight, marking the year's shortest span of sunshine. This season of minimal light contrasts sharply with the long, sun-kissed days of summer, where June and July bask in a generous 15 hours of daylight, welcoming warmth and vitality. The transition from the vibrant blooms of spring—with a pleasing 13 hours in April—to the twilight of winter reveals a clear trend: daylight progressively lengthens from the dimmest days of December, culminating in a peak during the summer months, before receding again into winter's embrace. Each month captures a unique interplay of light, creating a dynamic seasonal narrative that characterizes life in this picturesque Swiss town.

Average Daylight Hours in Saillon for December

The chart illustrates the variation in daylight duration in Saillon throughout the year, with December 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.

December Winds in Saillon

As winter descends on Saillon, Switzerland, December brings a slight increase in wind speed, averaging 1.5 m/s (3 mph), a gentle breeze that whispers through the valleys. This uptick from the consistent low levels seen in the previous months hints at a subtle shift in the seasonal climate. While the winter months typically feature calmer winds, December stands out with its modest increase, matching the early months of the year. It's a time when residents and visitors alike can enjoy the serene beauty of the landscape without the fierce gusts that often characterize alpine regions. This soothing wind complements the festive atmosphere of the holiday season, making December a charming time to experience the warmth and magic of Saillon's winter.

Average December Wind Speed in Saillon

The chart displays monthly wind speed patterns in Saillon, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.51.11.11.21.01.11.11.01.21.31.5 m/s
Data source: Saillon December wind data, generated using information from the Copernicus Climate Change Service.

How December 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 December’s weather to other months in Saillon, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, the weather is characterized by a broader temperature range, with minimums dipping down to -29°C (-21°F) and an average of -6°C (21°F). The month is relatively wet, recording 213 mm (8.4 in) of precipitation over 16 days, with high humidity levels at 91%. In contrast, January experiences slightly milder temperatures, with a minimum of -26°C (-15°F) and an average of -8°C (18°F), while maintaining a maximum of 8°C (46°F). Precipitation also decreases significantly to 140 mm (5.5 in) over just 10 days. Despite the drop in rainfall, humidity remains consistent at 91%. For more specific details on January weather trends, you can check Saillon weather in January.

December and February present distinct weather patterns, highlighting the transition between the harsher winter and the gradual onset of early spring. In December, temperatures plunge to a minimum of -29°C (-21°F) and usually hover around an average of -6°C (21°F), with a maximum reaching 8°C (46°F). The month is marked by significant precipitation, totaling 213 mm (8.4 in) over 16 days, accompanied by high humidity levels of 91%. In contrast, February sees a slight warming trend, with minimum temperatures of -21°C (-5°F) and an average of -4°C (26°F), peaking at 12°C (55°F). Precipitation decreases to 108 mm (4.3 in) over 11 days, and humidity remains relatively high at 89%. Overall, February offers a milder atmosphere compared to the chill of December. For more details, check out Saillon weather in February.

In December, the weather is harsh, with temperatures ranging from a chilling -29°C (-21°F) to a maximum of 8°C (46°F) and an average of -6°C (21°F). The month also sees significant precipitation, totaling 213 mm (8.4 in) over 16 days, accompanied by high humidity at 91%. In contrast, March ushers in milder conditions, with temperatures ranging from -24°C (-11°F) at night to a comfortable 16°C (60°F) during the day, resulting in an average of 0°C (31°F). Precipitation decreases to 135 mm (5.3 in) across 15 days, and humidity slightly lowers to 87%. For a detailed look at March weather in Saillon, you can check out Saillon weather in March.

December and April present distinctly contrasting weather conditions. In December, temperatures can plunge to a minimum of -29°C (-21°F), with an average hovering around -6°C (21°F) and a maximum of only 8°C (46°F). This month is also characterized by significant precipitation, totaling 213 mm (8.4 in) over approximately 16 days, along with high humidity at 91%. In contrast, April sees a milder climate, with minimum temperatures around -17°C (3°F) and an average of 4°C (39°F), peaking at 19°C (66°F). Precipitation decreases to 87 mm (3.4 in) over 12 days, and humidity is slightly lower at 84%. For a more detailed look at April weather in Saillon, check Saillon weather in April.

December and May present stark contrasts in weather conditions. In December, temperatures can plunge as low as -29°C (-21°F), with an average of -6°C (21°F) and a maximum of 8°C (46°F). This month also sees a high level of humidity at 91% and significant precipitation, totaling 213 mm (8.4 in) over 16 days. In comparison, May experiences milder temperatures, ranging from a minimum of -14°C (7°F) to a maximum of 24°C (75°F), with an average temperature of 7°C (45°F). Although it is slightly less humid at 80%, May still brings considerable rainfall, with 191 mm (7.5 in) falling over 20 days. For more detailed information on May weather, you can refer to Saillon weather in May.

December and June showcase stark contrasts in weather conditions. In December, temperatures can plummet to a chilling minimum of -29°C (-21°F), with an average temperature around -6°C (21°F) and a maximum of 8°C (46°F). This month is also characterized by high humidity levels at 91% and substantial precipitation, totaling 213 mm (8.4 in) over about 16 days. In comparison, 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 comfortable 28°C (83°F). While June sees slightly less precipitation at 177 mm (7.0 in) over 18 days, the humidity is lower at 82%. For more detailed information, check out Saillon weather in June.

December and July present stark contrasts in weather conditions. In December, temperatures can plunge as low as -29°C (-21°F) with an average of -6°C (21°F), while the month averages a high of 8°C (46°F). Precipitation is significant at 213 mm (8.4 in) over 16 days, accompanied by high humidity levels of 91%. In contrast, July enjoys much milder temperatures, with lows around 1°C (35°F) and highs reaching 28°C (82°F) for an average of 14°C (58°F). Precipitation in July is slightly less at 182 mm (7.2 in) across 17 days, and humidity is lower at 82%. For more details on the weather during this summer month, you can visit Saillon weather in July.

December and August exhibit stark contrasts in weather conditions. In December, temperatures plummet to a minimum of -29°C (-21°F), with an average of -6°C (21°F) and a maximum of 8°C (46°F). The month is characterized by high humidity levels at 91% and substantial precipitation, amounting to 213 mm (8.4 in) over 16 days. In contrast, August offers a much milder climate, featuring temperatures ranging from a minimum of 2°C (36°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F). Although it also sees precipitation—173 mm (6.8 in) over 17 days—the humidity is lower at 77%. For more insights on the weather in August, you can check Saillon weather in August.

December and September present quite contrasting weather conditions. In December, temperatures plummet, with minimums reaching a chilling -29°C (-21°F) and an average of -6°C (21°F), while the maximum temperature only climbs to 8°C (46°F). The month is also marked by high precipitation levels of 213 mm (8.4 in) and an impressive humidity of 91%, indicating a damp and cold environment experienced over 16 days of rainfall. In contrast, September enjoys milder weather, where temperatures range from a minimum of -6°C (22°F) to a pleasant average of 10°C (50°F), with a maximum reaching 23°C (73°F). Precipitation in September is significantly lower at 113 mm (4.5 in) over 15 days, accompanied by a humidity level of 81%. These differences contribute to distinct seasonal experiences, making September a much more temperate time compared to the harsh conditions typical of December. For more detailed information, you can visit Saillon weather in September.

In December, temperatures drop significantly, with lows reaching -29°C (-21°F) and an average of -6°C (21°F), while October experiences milder conditions, with minimum temperatures of -6°C (22°F) and an average of 6°C (43°F). Precipitation also differs notably; December sees 213 mm (8.4 in) over 16 days, compared to October's 131 mm (5.2 in) over 13 days. Humidity levels remain relatively high in both months, with December at 91% and October slightly lower at 89%. For more detailed information on weather patterns during October, you can visit Saillon weather in October.

In December, the weather is significantly colder than in November, with average temperatures dropping from -1°C (31°F) to -6°C (21°F), and minimum temperatures plunging further to -29°C (-21°F) compared to November's low of -20°C (-4°F). While November enjoys a milder maximum of 16°C (61°F), December's highs only reach up to 8°C (46°F). Furthermore, December experiences more precipitation, with 213 mm (8.4 in) over 16 days, compared to November's 101 mm (4.0 in) over 13 days. Humidity levels also increase slightly, with December averaging 91% compared to November's 89%. For a detailed look at November’s weather, you can check Saillon weather in November.

Compare Saillon's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Saillon

As December settles in, Saillon's weather transforms dramatically, offering a unique blend of chill and charm. The temperature dips significantly, showcasing the sharp contrast between the brisk highs and the biting lows, making it one of the coldest months of the year. With high humidity levels and notable precipitation, December days are often draped in moisture-laden clouds, leading to a notable increase in rainy days compared to other months. This wintry atmosphere, paired with the serene beauty of the landscape, creates a distinctive winter experience that sets it apart from the gentler seasons. For a deeper insight into the weather patterns of Saillon, explore Saillon Climate.