Last updated: August 27, 2025
January in Winterthur, Switzerland presents a chilly yet picturesque landscape, where temperatures fluctuate from a maximum of 15°C (60°F) to a minimum of -13°C (9°F). With an average temperature resting at 1°C (34°F), the month is characterized by a notable humidity level of 92%. Travelers can expect 11 days of precipitation, accumulating around 97 mm (3.8 in), infusing the atmosphere with a refreshing vibrancy. Embrace the winter charm as this Swiss city transforms into a serene wonderland during the depths of January.
In January, Winterthur experiences a chilly climate, with temperatures ranging from a minimum of -13°C (9°F) to a pleasant maximum of 15°C (60°F). The average temperature hovers around 1°C (34°F), setting a brisk tone for the month. Interestingly, as winter progresses into February, temperatures rise slightly, with averages hitting 3°C (38°F) and maximums climbing to 18°C (65°F). This upward trend continues into March, as the average reaches 6°C (43°F), hinting at the approaching spring. Overall, January serves as a foundational month for Winterthur's winter climate, where the cold gradually gives way to more moderate February temperatures, paving the way for the first hints of warmth as the season unfolds.
January in Winterthur, Switzerland, ushers in 97 mm (3.8 in) of precipitation over roughly 11 days, setting a wet tone for the winter season. As the first month of the year, it typically experiences more rainfall compared to its neighbor February, which sees a drop to 75 mm (3.0 in) despite having more precipitation days. Interestingly, winter transitions into spring bring varying precipitation patterns, with March seeing a slight uptick to 86 mm (3.4 in), paving the way for the wetter months ahead. This trend showcases a defined seasonal shift, where the early winter chill gives way to spring's increased moisture, culminating in May's peak of 123 mm (4.9 in). Overall, January's significant rainfall reflects the region's winter weather dynamics, hinting at the impending awakening of spring as snow melts and rivers swell.
January in Winterthur, Switzerland, ushers in a season marked by high humidity, peaking at a notable 92%. This elevated moisture level signals the onset of winter's chill, and while February follows closely with 89% humidity, a gradual decline is observed as we transition into spring. By March, the humidity dips to 87%, continuing its descent to 84% in April and 80% by May, as warmer temperatures begin to emerge. However, the humidity remains relatively stable throughout the summer months, fluctuating between 80% and 83%. As the year progresses into autumn, the numbers rise again, with October and December each hitting 90%. This cycle emphasizes Winterthur's damp winter conditions and the gradual shift towards dryer seasons, ultimately reinforcing the city’s distinct seasonal contrasts.
In January, Winterthur, Switzerland, experiences a low UV Index of 2, indicating minimal risk of harm from unprotected sun exposure, with a burn time of about 45 minutes. As the months progress, the UV Index gradually rises, reaching moderate levels in February and March, where safe sun exposure time decreases to 30 minutes. By April, the UV Index escalates to 6, categorized as high, slashing the burn time to 25 minutes. This upward trend continues sharply into late spring and summer, peaking at a very high UV Index of 9 in both June and July, with an even shorter burn time of 15 minutes during these crucial months. As temperatures begin to cool in September, the UV Index diminishes to 6, signaling a return to moderate risk, while November and December usher in lower levels of UV radiation, with the index dropping to 1 and 2 respectively. For a comprehensive look at the UV levels month-by-month, visit Winterthur UV Index.
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In Winterthur, Switzerland, January ushers in a modest 147 hours of sunshine, setting the stage for winter's chill. As the months unfold, a noticeable trend emerges: the sun begins to reclaim its prominence. February enjoys a leap to 215 hours, hinting at the promise of spring, while March accelerates this surge, offering 286 hours as days grow longer. By the time April rolls around, Winterthur bathes in 351 hours of sunlight, and May continues this upward trajectory with a peak of 358 hours, encapsulating the vibrant awakening of nature. The sunny days crescendo in July, reaching a glorious 406 hours, before gradually tapering off in the late summer and autumn months. By October, sunshine dips to 266 hours, and as winter approaches, November and December close the year with 195 and 165 hours respectively, reminding us of the cyclical dance between light and dark in this picturesque Swiss city.
In Winterthur, Switzerland, the likelihood of sunny weather takes a notable dip during January, with only a 16% chance of sunshine. This trend marks the beginning of the year where the optimism for clear skies lags far behind the sunnier months that follow. As winter gives way to spring, the chances steadily increase, with February experiencing a jump to 38%, and further rising to 45% by March. The upward trajectory continues into April at 49%, peaking as the region transitions into warmer weather, suggesting that although January may feel gloomier, brighter days are just around the corner.
In Winterthur, Switzerland, January heralds the start of the year with a modest daylight duration of just 8 hours. As winter unfolds, daylight gradually increases, with February bringing 10 hours into the mix. This upward trend continues into spring, where March boasts 11 hours, and by April, residents can enjoy 13 hours of sunlight. The days reach their peak in May and June, each offering an impressive 15 hours of daylight, creating the perfect backdrop for outdoor activities and social gatherings. As summer wanes, the hours begin to taper off, with August providing 14 hours, followed by a steady decrease to 12 hours in September and 10 hours in October. As autumn deepens, November sees a slight drop to 9 hours, echoing January's wintry feel with another 8 hours of daylight in December—completing the cycle of seasonal change in this picturesque Swiss town.
In January, Winterthur greets the year with a gentle average wind speed of 2.5 m/s (6 mph), making it one of the windiest months of the winter season. As the year gradually unfolds, the winds seem to soften, with February and March experiencing slight declines, hovering around 2.2 m/s (5 mph) and 2.3 m/s (5 mph), respectively. The trend continues into the spring months, where the wind speed remains stable, indicating a calm atmosphere as nature begins to awaken. Interestingly, May introduces a mild increase to 2.8 m/s (6 mph), suggesting a refreshing breeze as the flowers bloom. However, the summer months shift towards calmer conditions, with wind speeds dipping to 1.8 m/s (4 mph) in June and remaining steady throughout July and August. In contrast, a slight resurgence occurs in November and December, hinting at winter's re-emergence with winds hovering around 2.0 m/s (4 mph) and 2.3 m/s (5 mph), respectively. Overall, January marks the beginning of a year characterized by gentle fluctuations in wind, guiding us from the briskness of winter to the calm of summer, before welcoming the return of seasonal breezes.
Weather in Winterthur varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Winterthur, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of January and February, January tends to be slightly colder with average temperatures hovering around 1°C (34°F), while February sees a mild increase to an average of 3°C (38°F). The temperature range also widens in February, reaching a maximum of 18°C (65°F) compared to January's maximum of 15°C (60°F). Precipitation in January is higher at 97 mm (3.8 in) over 11 days, in contrast to February's 75 mm (3.0 in) over 12 days. Humidity remains relatively high in both months, with January at 92% and February slightly lower at 89%. For more detailed information, you can check Winterthur weather in February.
In January, the weather features cold temperatures, with a minimum of -13°C (9°F) and an average of 1°C (34°F), while March sees a slight warming trend with an average temperature of 6°C (43°F) and a maximum of 20°C (69°F). While January experiences more days of precipitation, totaling 11 days and 97 mm (3.8 in), March has 14 days of precipitation but with slightly less rainfall at 86 mm (3.4 in). Humidity is higher in January at 92%, compared to March's 87%, reflecting the lingering chill of winter in January and a gradual shift towards spring in March. For more details on the weather conditions, you can check Winterthur weather in March.
January and April present a stark contrast in weather patterns. In January, temperatures can plummet as low as -13°C (9°F), with an average of 1°C (34°F) and a maximum reaching 15°C (60°F). The month typically experiences 97 mm (3.8 in) of precipitation across 11 days, along with high humidity levels at 92%. In contrast, April brings a significant warming trend, with minimum temperatures around -4°C (25°F) and an average increase to 10°C (50°F), peaking at 26°C (79°F). Precipitation decreases to 63 mm (2.5 in) over 9 days, and the humidity slightly drops to 84%. For more detailed insights specifically about April's climate, you can visit Winterthur weather in April.
January and May present starkly contrasting weather conditions. In January, temperatures can plunge as low as -13°C (9°F), with an average around 1°C (34°F) and a maximum reaching 15°C (60°F). This month is characterized by significant humidity at 92%, accompanied by 97 mm (3.8 in) of precipitation over 11 days. In comparison, May experiences a more temperate climate, with minimum temperatures of -2°C (28°F) and an average of 13°C (56°F). The highs can soar to 30°C (87°F), and while May sees more total precipitation at 123 mm (4.9 in) over 17 days, the humidity is noticeably lower at 80%. For more details on the weather in this vibrant month, you can explore Winterthur weather in May.
In January, the weather is characterized by cold temperatures, with a minimum of -13°C (9°F) and an average of around 1°C (34°F). The month sees significant precipitation of 97 mm (3.8 in) over approximately 11 days, coupled with high humidity at 92%. In stark contrast, June experiences much milder weather, with minimum temperatures of 5°C (42°F) and an average of 18°C (65°F), peaking at a warm 33°C (92°F). Precipitation increases slightly to 138 mm (5.4 in) over 14 days, and humidity drops to a more comfortable 82%. For more detailed insights, visit Winterthur weather in June.
January and July present stark contrasts in weather conditions. In January, temperatures range from a frigid minimum of -13°C (9°F) to a mild maximum of 15°C (60°F), with an average temperature around 1°C (34°F). The month is characterized by high humidity at 92% and frequent precipitation, totaling 97 mm (3.8 in) over 11 days. In contrast, July boasts warmer temperatures, with a minimum of 8°C (47°F) and a maximum reaching up to 36°C (96°F), resulting in an average of 20°C (68°F). Although it experiences slightly less precipitation, totaling 92 mm (3.6 in) across 14 days, the humidity is lower at 83%. For more details, you can check out Winterthur weather in July.
January and August present strikingly different weather patterns. In January, temperatures can drop to a chilling -13°C (9°F), with an average around 1°C (34°F) and highs reaching up to 15°C (60°F). This month also experiences considerable precipitation, with about 97 mm (3.8 in) over 11 days and a high humidity level of 92%. Conversely, August brings a much milder climate, with minimum temperatures of 8°C (46°F), an average of 19°C (67°F), and maximums soaring to 35°C (95°F). While August sees a slight increase in total precipitation to 114 mm (4.5 in) over 12 days, the humidity is lower at 80%. The contrast between the two months highlights the dramatic seasonal changes one can expect in this region. For a more detailed view of August weather, you can visit Winterthur weather in August.
In January, the weather is characterized by frigid temperatures, with a minimum of -13°C (9°F) and an average hovering around 1°C (34°F), occasionally peaking at a maximum of 15°C (60°F). The month also sees a high level of humidity at 92% and receives considerable precipitation, totaling 97 mm (3.8 in) over 11 days. In stark contrast, September enjoys milder conditions, with temperatures ranging from a minimum of 3°C (38°F) to an average of 15°C (59°F), and maximums reaching 29°C (84°F). Although September has slightly less precipitation at 84 mm (3.3 in) over the same number of days, the humidity is lower at 83%. For more insights on the transition to autumn, check out Winterthur weather in September.
In January, the weather is significantly colder, with temperatures ranging from a frigid -13°C (9°F) to a mild 15°C (60°F), averaging around 1°C (34°F). The month experiences considerable precipitation, totaling 97 mm (3.8 in) over approximately 11 days, coupled with high humidity levels at 92%. In contrast, October boasts a much milder climate with temperatures ranging from -1°C (31°F) to a comfortable 23°C (73°F), averaging 10°C (51°F). Despite slightly less precipitation at 94 mm (3.7 in) distributed over 12 days and a lower humidity level of 90%, October feels much more pleasant. For those interested in exploring more about the October weather, visit Winterthur weather in October.
January and November present contrasting winter experiences. January is colder, with temperatures ranging from a frigid -13°C (9°F) to a mild 15°C (60°F), averaging around 1°C (34°F). It also sees higher precipitation levels at 97 mm (3.8 in) over 11 days, accompanied by high humidity at 92%. In contrast, November offers relatively milder conditions, with temperatures fluctuating between -3°C (26°F) and 20°C (69°F), averaging 5°C (41°F). This month receives less precipitation, totaling 62 mm (2.5 in) over the same number of days, and the humidity is slightly lower at 88%. For more detailed insights, you can check Winterthur weather in November.
In December, temperatures in Winterthur generally range from a minimum of -8°C (19°F) to a maximum of 14°C (57°F), with an average of 3°C (37°F). This month tends to be wetter, with about 121 mm (4.8 in) of precipitation over 18 days and a humidity level of 90%. In contrast, January sees slightly colder temperatures, with a minimum of -13°C (9°F) and an average of 1°C (34°F), peaking at 15°C (60°F). Precipitation decreases to 97 mm (3.8 in) over 11 days, while humidity rises slightly to 92%. For more details on the December weather in Winterthur, visit Winterthur weather in December.
As winter blankets Winterthur in January, the weather takes a notably cooler turn compared to other months of the year. With temperatures rarely climbing beyond a mild 15°C, the average dips significantly, plunging down to around 1°C, and even hitting chilling lows of -13°C on the coldest nights. The high humidity levels and frequent precipitation—averaging 97 mm over approximately 11 days—contribute to a soggy atmosphere that feels distinctly different from the warmer, drier seasons. If you're curious to explore more about how January's climate shapes Winterthur's overall weather patterns, check out Winterthur Climate.