Last updated: August 27, 2025
In Riehen, Switzerland, January brings a striking contrast in weather, with temperatures ranging from a brisk -13°C (8°F) to a pleasant 17°C (62°F). The average temperature hovers around a chilly 1°C (35°F), inviting winter enthusiasts to embrace the season. Throughout the month, precipitation totals 89 mm (3.5 in), falling on approximately 12 days, which contributes to the region's lush landscapes. Humidity levels remain high at 92%, creating a moist atmosphere that enhances the cold, crisp air. This combination of temperatures and moisture showcases January as a dynamic month in Riehen, perfect for those who appreciate the beauty and challenges of winter weather.
In January, Riehen, Switzerland experiences a striking range of temperatures, with nights dipping as low as -13°C (8°F) and daytime highs reaching a modest 17°C (62°F). This month marks the coldest point in the year, where the average temperature hovers around 1°C (35°F), setting the stage for a chilly winter landscape. As one moves into February and March, a gradual warming trend emerges, with average temperatures climbing to 4°C (39°F) and 6°C (44°F), respectively. This early transition hints at the approaching spring, as highs inch closer to the 20°C (68°F) mark by late March. January's cold might chill the air, but it ultimately paves the way for the warmer and more temperate months ahead, creating a canvas of seasonal transformations that truly define this picturesque Swiss region.
In January, Riehen, Switzerland experiences an average precipitation of 89 mm (3.5 in) over 12 days, establishing a wet tone for the year. This month frequently ushers in a flurry of winter weather, with rainfall continuing at a steady pace into February, though slightly less intense. Interestingly, precipitation levels exhibit a tendency to fluctuate, peaking in spring and summer, particularly in May when it reaches 126 mm (5.0 in) across 17 days. Overall, while January may not be the wettest month, it sets the stage for a dynamic weather pattern that evolves throughout the year, with marked increases in both rainfall and frequency of wet days as the seasons shift.
In January, Riehen, Switzerland experiences its highest humidity level of the year at a notable 92%, setting a damp tone for the month. This elevated moisture tends to decrease as winter transitions to spring, with February and March showing a gradual decline to 89% and 87%, respectively. As temperatures begin to rise in April and May, humidity continues to drop, reaching 84% and 80%. The trend stabilizes during the summer months, hovering around 80% to 83%, before a slight uptick in moisture returns in the fall. By October and December, humidity levels climb back up to 90%, confirming that Riehen’s weather is characterized by its notable dampness throughout the year, especially in the winter months.
In Riehen, Switzerland, the UV index in January is relatively low, sitting at 2, which indicates minimal risk of harm from unprotected sun exposure. With a burn time of 45 minutes, this month offers a great opportunity for outdoor activities without significant sun protection concerns. However, as winter progresses into February and March, the UV index gradually rises to 3 and 5, respectively, shifting the exposure category from low to moderate, and shortening burn time to 30 minutes. This trend continues into spring, when by April, the index reaches a noteworthy 6, marking a high exposure category and a burn time of just 25 minutes. As the days get longer and sunnier, the summer months bring the highest UV levels, peaking at 9 in both June and July, requiring vigilant sun protection as burn times dwindle to just 15 minutes. The UV index then begins to decline again in August and September, before settling to lower levels in the fall and winter months, reminding us that even in the colder seasons, UV protection remains essential. For more detailed insights, visit Riehen UV Index.
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In January, Riehen, Switzerland, greets the new year with 136 hours of sunshine, setting a serene tone for winter. As the months progress, sunlight steadily increases, with February shining for 211 hours and March early hinting at spring with 283 hours. By April, the days grow longer still, basking in 353 hours, while May and June reach their peak, offering a warm embrace with 361 and 389 hours respectively. The golden summer stretches into July, boasting 413 hours of glorious sunshine, before slightly tapering off in August and September, where 381 hours and 323 hours suggest a gentle transition into autumn. As the year closes, October to December witnesses a gradual decline, with 265 and 156 hours, reflecting winter's gradual return, but leaving behind a rich tapestry of light that invigorates the spirit throughout the year.
In Riehen, Switzerland, January often bids farewell to sunshine with just a 17% chance of clear skies, making it one of the dreariest months for sunlight. As winter takes its course, the likelihood of sunny weather gradually increases, surging to 38% by February and peaking at 51% in April. This trend reflects the slow emergence of spring, with March and April providing a delightful transition towards sunnier days. While May experiences a dip back to 33%, it sets the stage for the sunnier summer months ahead, illustrating a palpable shift in Riehen's weather from the low winter sun to the vibrant warmth of spring and summer.
In Riehen, Switzerland, the transition from winter to spring is marked by a gradual increase in daylight, beginning with just 8 hours in January. As the days lengthen, February sees an uplifting rise to 10 hours, setting the stage for March's 11 hours. By April, daylight reaches 13 hours, and the lush month of May ushers in a generous 15 hours of sunshine, peaking in June, July, and August which maintain this delightful duration. However, the balance begins to shift in September as daylight retreats to 12 hours, followed by October's 10 hours, leading back to November's 9 hours and returning to the crisp 8 hours of December. Overall, this rhythmic cycle beautifully showcases the ebb and flow of sunlight throughout the year, enhancing Riehen's seasonal charm.
In January, Riehen, Switzerland, welcomes the year with a brisk average wind speed of 2.5 m/s (6 mph), marking one of the month's most invigorating traits. As winter progresses into February and March, the wind slightly eases to 2.3 m/s (5 mph), creating a serene atmosphere perfect for strolling through the snow-dusted landscapes. As spring approaches, April maintains this gentle breeze, but by May, the winds pick up once again to 2.7 m/s (6 mph), heralding the season's vibrant awakening. The summer months see a noticeable decline, with June recording the year's lowest average of 1.7 m/s (4 mph), followed by consistent calmness through July and August. However, as autumn arrives, the winds begin to strengthen once more, with November registering 2.0 m/s (4 mph) and December bouncing back to 2.5 m/s (6 mph). This cyclical dance of wind speeds paints a vivid picture of Riehen's changing seasons, capturing both the tranquility of winter and the refreshing breezes of spring and fall.
Weather in Riehen varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Riehen, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather typically experiences a broader range of temperatures with a minimum of -13°C (8°F) and a maximum of 17°C (62°F), resulting in an average temperature of around 1°C (35°F). This month sees significant humidity at 92% and higher precipitation levels of 89 mm (3.5 in) over 12 days. In contrast, February shows a slight warming trend, with average temperatures rising to 4°C (39°F), and the maximum reaching 19°C (66°F), while maintaining the same minimum temperature of -13°C (9°F). February also has a lower total precipitation of 75 mm (2.9 in) over the same number of days, combined with a slightly reduced humidity level of 89%. For more details, you can visit this link: Riehen weather in February.
January and March present contrasting weather patterns. In January, temperatures range from a chilly minimum of -13°C (8°F) to a maximum of 17°C (62°F), with an average temperature of about 1°C (35°F). The month is marked by high humidity at 92% and a total precipitation of 89 mm (3.5 in) over 12 days. In comparison, March experiences slightly milder temperatures, with a minimum of -12°C (10°F) and a maximum of 21°C (71°F), bringing the average up to 6°C (44°F). Although March has slightly less total precipitation at 87 mm (3.4 in) over 14 days, humidity decreases to 87%. For more detailed information on March weather, you can visit Riehen weather in March.
January and April present contrasting weather patterns. In January, temperatures can plummet to a minimum of -13°C (8°F), with an average of around 1°C (35°F) and a maximum reaching 17°C (62°F). The month is characterized by high humidity at 92% and significant precipitation, totaling 89 mm (3.5 inches) over 12 days. In contrast, April experiences milder temperatures, with a minimum of -4°C (26°F), an average of 10°C (50°F), and a maximum of 26°C (80°F). Although there is still some precipitation, it is less intense, totaling 59 mm (2.3 inches) over 10 days, and humidity drops to 84%. For those specifically interested in April weather, additional details can be found at Riehen weather in April.
January weather presents a stark contrast to that of May. In January, temperatures can plummet as low as -13°C (8°F), with an average around 1°C (35°F) and highs reaching only 17°C (62°F). The season is characterized by high humidity levels at 92% and 89 mm (3.5 in) of precipitation over 12 days.
In comparison, May brings a much milder climate with temperatures ranging from a minimum of 1°C (33°F) to an average of 14°C (57°F) and reaching up to 31°C (87°F). Although May experiences slightly more precipitation at 126 mm (5.0 in) over 17 days, humidity decreases to 80%, making the warmer days feel more comfortable. For more detailed information, you can check out Riehen weather in May.
The weather comparison between January and June reveals striking contrasts. In January, temperatures can plunge to a minimum of -13°C (8°F), with an average temperature of around 1°C (35°F) and a maximum reaching only 17°C (62°F). The month is characterized by high humidity at 92% and 89 mm (3.5 in) of precipitation over 12 days. In stark contrast, June sees a much milder climate, with temperatures ranging from a minimum of 6°C (43°F) to an average of 19°C (66°F), peaking at a warm 34°C (94°F). Although June experiences more days of precipitation, totaling 120 mm (4.7 in) over 16 days, the humidity is lower at 82%. To explore more about Riehen's weather in June, you can visit this link: Riehen weather in June.
January and July offer starkly contrasting weather conditions. In January, temperatures plummet to a minimum of -13°C (8°F) and hover around an average of 1°C (35°F), with occasional highs reaching up to 17°C (62°F). The month sees significant precipitation of 89 mm (3.5 in) over about 12 days, and the humidity remains quite high at 92%. In contrast, July brings a warmer climate with minimum temperatures of 9°C (49°F) and an average of 20°C (69°F), peaking at a scorching 36°C (98°F). Although July experiences slightly more rainfall at 122 mm (4.8 in) over 15 days, the humidity is notably lower at 83%. For more details on weather conditions in July, check out Riehen weather in July.
January and August present contrasting weather conditions. In January, temperatures can plunge as low as -13°C (8°F), with an average of just 1°C (35°F) and a maximum of 17°C (62°F). The month is marked by high humidity at 92% and receives 89 mm (3.5 in) of precipitation over 12 days. In stark contrast, August boasts more temperate conditions, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 34°C (94°F) and an average of 20°C (68°F). Although August has slightly higher precipitation at 115 mm (4.5 in) over 15 days, the humidity is lower at 80%. For more details, check Riehen weather in August.
In January, weather conditions lean towards the colder side, with minimum temperatures dropping to -13°C (8°F) and an average of just 1°C (35°F), while maximums reach only up to 17°C (62°F). The month is marked by high humidity at 92% and notable precipitation, with 89 mm (3.5 in) falling over 12 days. In contrast, September showcases a much milder and more pleasant climate, with minimum temperatures of 2°C (36°F) and a comfortably warm average of 16°C (61°F). The maximum temperature can soar up to 30°C (86°F), and the month experiences less precipitation at 69 mm (2.7 in), also over 12 days, but with a reduced humidity level of 83%. For more details on the weather in Riehen during this month, you can refer to Riehen weather in September.
In January, temperatures can plummet as low as -13°C (8°F), with an average of just 1°C (35°F) and a maximum reaching 17°C (62°F). The month experiences about 89 mm (3.5 in) of precipitation over 12 days, accompanied by a high humidity level of 92%. In contrast, October sees a milder climate, where temperatures range from a minimum of -1°C (30°F) to an average of 11°C (52°F), peaking at 24°C (75°F). Precipitation remains similar at 89 mm (3.5 in), but it occurs slightly more frequently over 13 days, while humidity decreases slightly to 90%. For more insights on the October weather, refer to Riehen weather in October.
January and November present distinctly different weather characteristics. In January, temperatures plunge to a minimum of -13°C (8°F) and average around 1°C (35°F), with a maximum reaching 17°C (62°F). The month sees significant precipitation of 89 mm (3.5 in) over 12 days and maintains a high humidity level of 92%. In contrast, November offers milder conditions with a minimum temperature of -4°C (25°F) and an average of 5°C (42°F), peaking at 21°C (70°F). Precipitation is slightly lower at 73 mm (2.9 in) across the same number of days, and humidity is also slightly reduced at 88%. For a closer look at what to expect, check out Riehen weather in November.
January tends to be colder than December, with January's minimum temperatures dropping to -13°C (8°F) compared to December's milder minimum of -5°C (24°F). While the average temperature in January is slightly lower at 1°C (35°F) compared to December's 3°C (38°F), it does experience a higher maximum temperature of 17°C (62°F) during the month. Precipitation levels are also noteworthy, with January receiving 89 mm (3.5 in) over 12 days, while December has more significant rainfall of 124 mm (4.9 in) across 18 days. Humidity remains high in both months, but January is marginally more humid at 92% compared to December's 90%. For more detailed insights into weather in December, you can visit Riehen weather in December.
January in Riehen is a month of contrasts, showcasing chilly temperatures that can dip significantly lower than other seasons, with an average hovering around 1°C. This coolness is often accented by high humidity levels of 92%, creating a distinct dampness in the air. Unlike the warmer months, January tends to experience increased precipitation, totaling around 89 mm over about 12 days, making it one of the wetter months in the year. These conditions combined give January a unique atmosphere, starkly different from the sunnier, more temperate months. For a deeper dive into how January weather compares throughout the year, explore Riehen Climate.