Last updated: August 27, 2025
January in Rheinfelden, Switzerland presents a captivating winter landscape marked by varied temperatures, with a maximum of 17°C (62°F) and a minimum dipping to -13°C (8°F). The average temperature hovers around a chilly 1°C (35°F), creating a crisp atmosphere ideal for embracing the season's beauty. With 89 mm (3.5 in) of precipitation over 12 days, the month is characterized by a mix of rain and snow, accompanied by a high humidity level of 92%. This wintery weather invites both locals and visitors to enjoy the enchanting, frosty charm of Rheinfelden.
In Rheinfelden, Switzerland, January is characterized by its chilly temperatures, where the mercury can dip to a brisk -13°C (8°F) at night, yet occasionally reaches a comfortable maximum of 17°C (62°F) during the day. With an average temperature hovering around 1°C (35°F), the month sets the tone for a winter season that gradually transitions into milder conditions by February, where both minimum and average temperatures see a slight rise. This trend continues into March, as temperatures steadily increase, leading to more temperate days. As winter melts into spring, January’s cold days give way to warmer climates, hinting at the vibrant changes ahead in the months to come.
In January, Rheinfelden experiences a notable average precipitation of 89 mm (3.5 in), spread over approximately 12 rainy days. This marks a slight decline compared to the wetter conditions of December, which sees 124 mm of rain, hinting at the transitional nature of winter into early spring. The steady rains in January contribute to the region's lush landscapes, as this month typically serves as a precursor to slightly drier conditions in February with only 75 mm of precipitation. Interestingly, the rain frequency during January indicates a pattern of consistent, albeit moderate, rainfall, setting the tone for the month-to-month variation that characterizes Rheinfelden’s climate throughout the year.
In Rheinfelden, Switzerland, January sets the stage for the year with a notably high humidity level of 92%, creating a damp and chill atmosphere that lingers throughout the winter months. As the seasons transition, February and March see a gradual decline in humidity to 89% and 87%, respectively, hinting at the slow approach of spring. However, April continues this trend downward, settling at 84%, before humidity stabilizes in the coming months. By mid-year, from May to August, levels hover around the 80% mark, providing a refreshing break from the winter's moisture. Yet, the humidity resurges in September and October, bouncing back to 83% and a hearty 90%, respectively, as autumn takes hold. November maintains this elevated humidity at 88%, while December mirrors January's dampness, rounding out the year with another 90%. This cyclical dance of humidity reveals a clear seasonal pattern, with winter and fall saturating the air, while spring and summer offer a brief reprieve.
In January, Rheinfelden experiences a low UV Index of 2, indicating minimal sun exposure risk, with a burn time of 45 minutes. As the months progress, the UV Index steadily climbs; by February, it rises to 3, marking a shift to a moderate exposure category. This trend continues into March at a UV Index of 5, before peaking at 6 in April, where sun safety becomes more essential with a reduced burn time of just 25 minutes. The summer months unveil a striking increase, with May and June reaching 8 and 9, respectively, classifying the exposure as very high and significantly cutting burn time to 15 minutes. As summer fades into autumn, the UV Index begins to taper off, returning to 4 in October and dropping back to 2 in November, with December presenting the year’s lowest at 1. This annual pattern underscores the need for heightened sun protection during peak months while allowing for more relaxed exposure during the winter. For more detailed information on the UV Index trends throughout the year, check out Rheinfelden UV Index.
UV Risk Categories
January in Rheinfelden, Switzerland, sees 136 hours of sunshine, marking the beginning of a gradual increase in daylight as the year unfolds. February brings a notable jump to 211 hours, hinting at the awakening of spring. As the days lengthen, March basks in an impressive 283 hours, further fueling the anticipation of warmer months. The sunniest period arrives in the summer, peaking in July with 413 hours, followed closely by August, which retains 381 hours of radiant warmth. As summer wanes, the hours of sunshine begin to decline, with September at 323 hours and October dropping to 265 hours. By the time we reach November and December, sunshine diminishes to 192 hours and 156 hours, respectively, reminding us of the cycle of light and the cozy charm of winter in Rheinfelden.
In January, Rheinfelden experiences a modest 17% chance of sunny weather, which marks the beginning of a gradual increase in sunshine as the year progresses. This trend becomes more pronounced in February, with the likelihood of sun rising to 38%, and continues to climb rapidly as spring approaches, reaching 51% in April. Interestingly, the chance of sunny days fluctuates slightly through the summer months, stabilizing around 32% to 39% from June to August. By autumn, the likelihood dips again, with November and December showing 23% and 26% respectively. Overall, January's low sunshine probability is a precursor to the brighter days that follow, showcasing a clear seasonal evolution in Rheinfelden's weather patterns.
In Rheinfelden, Switzerland, January marks the beginning of the year with just 8 hours of daylight, a time when nature slowly awakens from its winter slumber. As the calendar turns to February, a noticeable shift occurs, extending daylight to 10 hours—a gentle hint of the spring ahead. By March, the days lengthen further to 11 hours, igniting a sense of renewal. April brings even more light, with 13 hours shining down, and May reaches a vibrant 15 hours, perfect for outdoor activities as life blooms around. Summer maintains this peak daylight, showcasing a consistent 15 hours in June and July, before slightly tapering off to 14 hours in August. The gradual descent begins with September at 12 hours, then further retreats to 10 hours in October. November and December return to the quieter rhythms of winter, each with 9 and 8 hours of daylight respectively, reflecting a full circle of seasonal change and inviting time for introspection. This captivating cycle of light and dark in Rheinfelden not only paints the landscape but also shapes the local rhythm of life.
In Rheinfelden, Switzerland, January ushers in the winter with an average wind speed of 2.5 m/s (6 mph), making it one of the breezier months of the year. As the seasons transition into spring, winds begin to calm slightly, with February through April consistently hovering around 2.3 m/s (5 mph), suggesting a tranquil spell before the warmth of summer. As May arrives, the wind picks up again to 2.7 m/s (6 mph), hinting at the season's energetic vibe. However, the summer months present a noticeable drop, with June to August experiencing some of the calmest winds of the year, averaging around 1.9 m/s (4 mph). The breezes pick up slightly again in the autumn, particularly in November, reaching 2.0 m/s (4 mph), before mirroring January's winds once more in December. This gentle cyclical pattern reflects the changing seasons, intertwining calmness with invigorating bursts of wind throughout the year.
Weather in Rheinfelden varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Rheinfelden, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather typically features a wide range of temperatures, with a minimum of -13°C (8°F), an average of 1°C (35°F), and a maximum of 17°C (62°F). This month experiences around 89 mm (3.5 in) of precipitation over 12 days, and humidity levels are quite high at 92%. In contrast, February shows a slight warming trend, with temperatures ranging from a minimum of -13°C (9°F) to an average of 4°C (39°F) and a maximum of 19°C (66°F). Precipitation decreases to 75 mm (2.9 in) over the same 12 days, and humidity drops slightly to 89%. For more detailed weather information, you can check Rheinfelden weather in February.
In January, temperatures in Rheinfelden are quite chilly, with a minimum of -13°C (8°F) and an average of 1°C (35°F), while reaching a maximum of 17°C (62°F) on warmer days. The month also sees significant precipitation, totaling 89 mm (3.5 in) over about 12 days, accompanied by high humidity at 92%. In contrast, March brings slightly milder temperatures, with a minimum of -12°C (10°F) and an average of 6°C (44°F), peaking at 21°C (71°F). Although precipitation remains similar at 87 mm (3.4 in) over about 14 days, humidity decreases to 87%. For more details on how weather trends change in March, you can check Rheinfelden weather in March.
In January, the weather is characterized by colder temperatures, with minimums plunging to -13°C (8°F) and maximums reaching only up to 17°C (62°F). The average temperature hovers around 1°C (35°F), while the high humidity at 92% combined with 89 mm (3.5 in) of precipitation over 12 days creates a rather chilly and damp atmosphere. In contrast, April brings a noticeable warmth, with minimum temperatures of -4°C (26°F) and maximums soaring to 26°C (80°F). The average temperature rises to a comfortable 10°C (50°F), accompanied by significantly less precipitation at 59 mm (2.3 in) over 10 days and humidity decreasing to 84%. For more detailed information, you can check out Rheinfelden weather in April.
In January, Rheinfelden experiences colder temperatures, with a minimum of -13°C (8°F) and an average of just 1°C (35°F). The weather is marked by high humidity at 92% and a total precipitation of 89 mm (3.5 in) over about 12 days. In contrast, May brings a much milder climate, where temperatures range from a minimum of 1°C (33°F) to a maximum of 31°C (87°F), resulting in an average of 14°C (57°F). Although May sees slightly more precipitation at 126 mm (5.0 in) across 17 days, the humidity decreases to 80%, making the weather feel more comfortable. For more details on May weather, you can visit Rheinfelden weather in May.
January and June present stark contrasts in weather conditions. In January, temperatures can dip to a chilling -13°C (8°F), with an average of just 1°C (35°F) and a maximum of 17°C (62°F). The month experiences significant precipitation at 89 mm (3.5 in) across 12 days, accompanied by high humidity at 92%. In contrast, June boasts a much milder climate with minimum temperatures at 6°C (43°F) and an average of 19°C (66°F), soaring to a warm maximum of 34°C (94°F). Although June sees more rainfall at 120 mm (4.7 in) over 16 days, humidity drops to 82%, making the overall experience more comfortable and inviting. For those interested in specific weather details for Rheinfelden, you can explore Rheinfelden weather in June.
In January, the weather is characterized by cold temperatures, with a minimum of -13°C (8°F) and an average of just 1°C (35°F), peaking at 17°C (62°F). The month sees significant precipitation of 89 mm (3.5 in) over 12 days, combined with high humidity levels at 92%. In contrast, July experiences much warmer conditions, with temperatures ranging from a minimum of 9°C (49°F) to an average of 20°C (69°F) and a maximum reaching 36°C (98°F). Although July receives slightly more precipitation at 122 mm (4.8 in) across 15 days, humidity levels are lower at 83%, contributing to a more comfortable summer atmosphere. For more details, check out Rheinfelden weather in July.
In comparing the weather between January and August, notable differences emerge in both temperature and humidity. January experiences colder temperatures, with a minimum of -13°C (8°F) and an average of just 1°C (35°F), while August sees a much warmer average of 20°C (68°F) and maximum temperatures reaching 34°C (94°F). Precipitation is slightly higher in August, totaling 115 mm (4.5 in) over 15 days, compared to January's 89 mm (3.5 in) over 12 days. Additionally, January's humidity level is considerably higher at 92%, compared to August's 80%, creating a stark contrast in the overall feel of the two months. For more information, you can check Rheinfelden weather in August.
In January, temperatures in Rheinfelden can be quite frigid, with minimums plunging to -13°C (8°F) and an average temperature around 1°C (35°F). The month also experiences significant precipitation, totaling 89 mm (3.5 in) over about 12 days, alongside a high humidity level of 92%. In contrast, September brings a much milder climate, with temperatures ranging from a minimum of 2°C (36°F) to an average of 16°C (61°F) and maximums reaching up to 30°C (86°F). Precipitation decreases to 69 mm (2.7 in) over the same number of rain days, and humidity also drops to 83%. For a closer look at the climate specifics, you can check out Rheinfelden weather in September.
In comparing the weather of January and October, January is characterized by much colder temperatures, with averages around 1°C (35°F) and a minimum dropping to -13°C (8°F). Meanwhile, October experiences a more mild climate, with average temperatures reaching 11°C (52°F) and maximums of 24°C (75°F). Both months receive similar amounts of precipitation, around 89 mm (3.5 in), but October has one additional rainy day, totaling 13 days. Humidity levels are slightly higher in January at 92%, compared to October’s 90%. For more detailed information, you can check out Rheinfelden weather in October.
In comparing the weather between January and November, one can observe notable differences in temperature and precipitation. January experiences colder conditions, with average temperatures around 1°C (35°F) and a minimum dipping as low as -13°C (8°F), while November offers milder temperatures, averaging 5°C (42°F) and a minimum of -4°C (25°F). Precipitation levels are slightly higher in January at 89 mm (3.5 in) compared to November's 73 mm (2.9 in), while both months have a similar number of wet days, around 12. Additionally, January's humidity is higher at 92%, creating a more frigid atmosphere, while November’s 88% humidity feels slightly less oppressive. For more detailed insights into the weather patterns in November, visit Rheinfelden weather in November.
January and December exhibit distinctly different weather patterns, with January generally being colder and slightly drier. The average temperature in January hovers around 1°C (35°F), with a minimum of -13°C (8°F) and a maximum of 17°C (62°F). In contrast, December has a slightly milder average temperature of 3°C (38°F), with minimums reaching -5°C (24°F) and maximums of 14°C (58°F). Precipitation levels are also notable; January receives 89 mm (3.5 in) of rain over 12 days, while December sees higher precipitation at 124 mm (4.9 in) over 18 days. Both months maintain high humidity, with January at 92% and December at 90%. For more detailed insights on December weather, you can check Rheinfelden weather in December.
January in Rheinfelden is a month of contrasts, where the crisp chill of winter prevails with temperatures hovering around freezing. Unlike the milder and sunnier months that follow, January's average temperature underscores the depth of winter, with cold mornings giving way to brief warm spells of up to 17°C. The stark humidity at 92% often cloaks the town in a damp chill, and with 12 days of precipitation, residents experience a characteristic overcast landscape. As winter conditions tighten their grip, Rheinfelden's January weather starkly contrasts with the more temperate and vibrant seasons ahead. For a deeper insight into the climate, visit Rheinfelden Climate.