Last updated: August 27, 2025
December in Rheinfelden, Switzerland, presents a captivating winter experience characterized by a maximum temperature of 14°C (58°F) and an average of 3°C (38°F), dipping to a brisk minimum of -5°C (24°F). With 124 mm (4.9 inches) of rainfall spread over 18 days, the month is often marked by a high humidity level of 90%, creating an atmospheric chill perfect for cozy indoor activities. Whether you’re exploring the festive ambiance or enjoying the scenic winter landscapes, Rheinfelden's December weather offers a unique backdrop filled with seasonal charm.
As December settles over Rheinfelden, Switzerland, the temperatures begin to cool, setting the stage for a picturesque winter landscape. With minimums dipping to -5°C (24°F) and average highs reaching around 3°C (38°F), the chill of the season is palpable. Compared to previous months, December’s temperatures are noticeably lower, reflecting a gradual descent into winter. The maximum daily temperature peaking at 14°C (58°F) suggests a brief respite from the cold, allowing for moments of crisp, refreshing air. The month closes out the year with an enchanting blend of frosty mornings and even some milder afternoons, inviting residents and visitors alike to embrace the magic of the Swiss winter.
In December, Rheinfelden experiences its wettest month of the year, with precipitation reaching an impressive 124 mm (4.9 in) over 18 rainy days. This significant rainfall marks a notable increase from the fall months, contributing to a trend of heightened precipitation as winter sets in. The combination of shorter days and colder temperatures often means that this rain can feel especially brisk, setting the stage for a distinctly wintry atmosphere. Interestingly, December's precipitation contrasts with the drier spring months, such as April and May, indicating a seasonal shift that prepares the landscape for the snow-covered scenes of January and February. Such patterns highlight the dynamic climate of Rheinfelden, where moisture levels fluctuate markedly with the changing seasons.
In Rheinfelden, Switzerland, December signals a notable shift in humidity, with levels rising to 90%, mirroring the trend seen in both January and October. Throughout the year, humidity generally decreases from a high of 92% in January to a lower average of 80% in May and August, reflecting the seasonal transition. However, as temperatures drop towards the year's end, humidity increases again, peaking in the chilly winter months. This pattern of fluctuating humidity not only influences the local climate but also enhances the region's enchanting winter landscape, making December a truly atmospheric time to visit.
As December rolls in, Rheinfelden, Switzerland, experiences a notable decline in UV intensity, with the UV Index dropping to a low 1. This reduction means that residents and visitors can enjoy the winter scenery without the pressing concern of sunburn, as the burn time stretches to an ample 45 minutes. Following a year marked by fluctuating UV levels, reaching a peak of 9 in the summer months, December stands in stark contrast, allowing for more leisurely outdoor activities. With the sun's rays less intense, it's a perfect time to embrace winter delights while keeping skin protection in mind. For those interested in keeping track of UV levels throughout the year, detailed information is available at Rheinfelden UV Index.
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While December may bring shorter days to Rheinfelden, Switzerland, the town still enjoys a respectable 156 hours of sunshine. This marks a notable decline compared to the earlier months, particularly from the sun-drenched heights of July's 413 hours and June's 389 hours. As the year progresses, the trend shows a gradual shift in light, with sunshine hours peaking in the warmer months of April through August and then tapering off as temperatures drop. Though December's hours are less than half of those in peak summer, the crisp winter sun offers a unique charm, providing a gentle warmth that invites residents and visitors alike to embrace the beauty of the season.
In Rheinfelden, Switzerland, the likelihood of sunny weather in December is relatively low, with only a 26% chance of sunshine. This trend reflects the gradual decrease in sun exposure as the year progresses from the brighter months of spring, peaking at 51% in April, to the gloomier late autumn and winter months. As December approaches, the chances dwindle significantly, following November's 23% and noticeably trailing behind the sunnier spells seen in earlier months. This pattern underscores the region's transition into a colder season, inviting cozy gatherings indoors rather than outdoor sunshine adventures.
In Rheinfelden, Switzerland, the daylight duration paints a clear picture of the changing seasons throughout the year. Starting from a low of 8 hours in both January and December, daylight gradually stretches to a peak of 15 hours during the vibrant months of May, June, and July. As spring blossoms into summer, the days lengthen, offering the most sunlight and encouraging outdoor activities. However, as autumn casts its spell, daylight diminishes, tapering back to 10 hours in October and 9 hours in November before returning to the winter norm of 8 hours. This rhythmic ebb and flow of sunlight not only shapes the daily life of Rheinfelden but also reflects the enchanting cycle of nature in this picturesque Swiss town.
As December rolls into Rheinfelden, Switzerland, the average wind speed picks up to 2.5 m/s (6 mph), mirroring the winds of January and hinting at a more spirited end to the year. This slight uptick from the summer months, with their calmer breezes that dipped to 1.7 m/s (4 mph) in June, suggests a transition into a brisk and invigorating winter atmosphere. Following a gradual increase through late autumn, the stability of December's winds emphasizes the region's shift towards the colder season, inviting both locals and visitors to embrace the refreshing, invigorating air while enjoying the charming winter landscapes.
Weather in Rheinfelden varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rheinfelden, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present notable differences in weather patterns. In December, temperatures range from a chilly minimum of -5°C (24°F) to a maximum of 14°C (58°F), with an average temperature of 3°C (38°F). The month experiences considerable precipitation, totaling 124 mm (4.9 in) over 18 days, accompanied by high humidity at 90%. January, on the other hand, sees even colder temperatures with minima dropping to -13°C (8°F) and a slightly warmer maximum of 17°C (62°F), averaging around 1°C (35°F). The precipitation level decreases to 89 mm (3.5 in) over 12 days, while humidity remains high at 92%. For more specific information about weather conditions in January, you can visit Rheinfelden weather in January.
December in Rheinfelden features a temperature range with a minimum of -5°C (24°F) and an average of 3°C (38°F), peaking at a maximum of 14°C (58°F). It is characterized by substantial precipitation, totaling 124 mm (4.9 in) over 18 days, and high humidity at 90%. In contrast, February presents slightly cooler temperatures, with a minimum of -13°C (9°F) and an average of 4°C (39°F), reaching up to 19°C (66°F) at its warmest. Precipitation decreases to 75 mm (2.9 in) across 12 days, and humidity remains similar at 89%. For more detailed insights into February's climate, check out Rheinfelden weather in February.
In December, temperatures tend to be milder with averages around 3°C (38°F) and highs reaching up to 14°C (58°F), although it can drop as low as -5°C (24°F). In contrast, March presents a wider temperature range, with lows of -12°C (10°F), average temperatures of 6°C (44°F), and maximums hitting 21°C (71°F), making it noticeably warmer during the day despite the low nighttime temperatures. Precipitation is somewhat higher in December, totaling 124 mm (4.9 in) over 18 days, compared to 87 mm (3.4 in) spread over 14 days in March. Humidity levels are fairly high in both months, at 90% in December and slightly lower at 87% in March. For more detailed insights into March weather patterns, you can refer to Rheinfelden weather in March.
December and April present contrasting weather conditions. In December, temperatures range from a chilly -5°C (24°F) at night to a milder 14°C (58°F) during the day, with an average of around 3°C (38°F). The month experiences significant precipitation, totaling 124 mm (4.9 in) over 18 rainy days, coupled with high humidity levels of 90%. In contrast, April shows a noticeable warming trend, with nighttime lows of -4°C (26°F) and daytime highs reaching up to 26°C (80°F), leading to an average of 10°C (50°F). The precipitation in April is lower at 59 mm (2.3 in) over just 10 days, and humidity decreases slightly to 84%. For more details on weather conditions in April, you can refer to Rheinfelden weather in April.
December and May present strikingly different weather patterns. December is characterized by colder temperatures, with minimums dropping to -5°C (24°F) and averages around 3°C (38°F), whereas May sees a more pleasant climate, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 31°C (87°F) and an average of 14°C (57°F). While both months experience similar amounts of precipitation—124 mm (4.9 in) in December and 126 mm (5.0 in) in May—the number of rainy days is fairly close, at 18 in December and 17 in May. Additionally, December's humidity level sits at a high 90%, compared to a slightly lower 80% in May, suggesting a more crisp and invigorating atmosphere in the latter month. For more detailed information, check out Rheinfelden weather in May.
When comparing the weather in December and June, it's evident that these months present contrasting climates. December typically experiences colder temperatures, with minimums dropping to -5°C (24°F) and an average of around 3°C (38°F). In contrast, June boasts much milder conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 34°C (94°F) and an average of 19°C (66°F). Although December sees higher humidity levels at 90%, June remains relatively comfortable at 82%. Precipitation is quite similar, with December experiencing 124 mm (4.9 in) over about 18 days, while June has slightly less at 120 mm (4.7 in) over 16 days. For more detailed information, check out Rheinfelden weather in June.
The weather in December contrasts sharply with that of July. In December, temperatures can plunge as low as -5°C (24°F), with an average temperature of around 3°C (38°F) and a maximum of 14°C (58°F). The month is quite damp, experiencing about 124 mm (4.9 in) of precipitation over 18 days, and high humidity levels hover around 90%. In contrast, July showcases much warmer conditions, with minimum temperatures starting at 9°C (49°F), averaging 20°C (69°F), and reaching a maximum of 36°C (98°F). While precipitation is similar at 122 mm (4.8 in), it occurs over fewer days—just 15—resulting in a lower humidity level of 83%. For more detailed insights into July weather, you can check out Rheinfelden weather in July.
The weather in December is notably colder than in August, with temperatures ranging from a frigid minimum of -5°C (24°F) to a comfortable maximum of 14°C (58°F), while the average sits at 3°C (38°F). In contrast, August brings warmer conditions, with temperatures starting at a minimum of 7°C (44°F), peaking at a scorching 34°C (94°F), and averaging around 20°C (68°F). December also experiences higher humidity levels at 90% compared to August's 80%, along with more precipitation spread across 18 days versus August's 15 days. The total rainfall, however, is slightly higher in December at 124 mm (4.9 in) compared to 115 mm (4.5 in) in August. For more detailed weather insights specific to August, you can check Rheinfelden weather in August.
In December, the weather in Rheinfelden is notably colder, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F) and an average of just 3°C (38°F). The month is quite wet as well, receiving 124 mm (4.9 in) of precipitation over approximately 18 days, resulting in high humidity levels of 90%. In contrast, September offers a mild climate, with a significant range in temperatures from a minimum of 2°C (36°F) up to a warm maximum of 30°C (86°F) and an average of 16°C (61°F). Precipitation is lower, totaling 69 mm (2.7 in) over about 12 days, and the humidity is comparatively less at 83%. For those interested in more details, you can find additional information in this link: Rheinfelden weather in September.
In comparing the weather patterns of December and October, we find notable differences in temperature and precipitation. December experiences colder temperatures, with a minimum of -5°C (24°F) and an average of just 3°C (38°F), while October enjoys a milder range, featuring a minimum of -1°C (30°F) and an average of 11°C (52°F). Peak temperatures in December reach only 14°C (58°F) compared to October's maximum of 24°C (75°F). Additionally, December receives more precipitation, totaling 124 mm (4.9 in) over 18 days, whereas October experiences less rain with 89 mm (3.5 in) across 13 days. Both months share a humidity level of 90%, but December’s chill and dampness contrast sharply with the softer, warmer conditions of October. For more details on October's climate, check out Rheinfelden weather in October.
In comparing the weather between December and November, December tends to be cooler with average temperatures ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), while November's temperatures are slightly milder, averaging between -4°C (25°F) and a maximum of 21°C (70°F). Additionally, December experiences significantly more precipitation, totaling 124 mm (4.9 in) over 18 days, compared to November's 73 mm (2.9 in) over 12 days. Humidity levels also rise during December, averaging 90% as opposed to November's 88%. For more detailed insights into November weather, you can visit Rheinfelden weather in November.
As December unfolds in Rheinfelden, the weather presents a striking contrast to the milder months of the year. Chillier temperatures set the tone, with an average that dips significantly, inviting the crispness of winter into daily life. Frequent precipitation transforms the landscape as rain falls on nearly half the days of the month, resulting in a high humidity level that adds to the wintry ambiance. Unlike the warmer seasons, December's cool embrace encourages cozy gatherings and festive celebrations, making it a distinctive month in the annual climate cycle. For a comprehensive overview of what to expect throughout the year, explore more at Rheinfelden Climate.