Last updated: August 27, 2025
January in Gersau, Switzerland is a month of contrasts, where temperatures fluctuate between a mild 11°C (52°F) and a brisk -15°C (5°F), with an average hovering around -1°C (30°F). Visitors can expect 144 mm (5.7 in) of precipitation spread over 13 days, enveloped in a high humidity level of 92% that adds a crisp chill to the air. This combination sets the stage for a picturesque winter landscape, perfect for cozy retreats and snowy adventures amidst the serene beauty of the Swiss Alps.
In January, Gersau, Switzerland, embraces its winter charm with temperatures that oscillate between a chilly minimum of -15°C (5°F) and a max reaching a mild 11°C (52°F). The month averages around -1°C (30°F), hinting at the bite of winter while laying the foundation for a transition into slightly warmer days ahead. As the season progresses into February, temperatures dip even lower, showcasing the coldest nights with a minimum of -19°C (-1°F), but by February's end, the month offers a sneak peek at spring with daytime highs of 14°C (58°F). This trend of colder evenings and progressively warmer afternoons continues in March, with temperatures gradually improving as the snow melts and the landscape begins to awaken, offering a glimpse of the warmer months on the horizon.
In Gersau, Switzerland, January marks the beginning of the year with a notable precipitation total of 144 mm (5.7 in) spread over approximately 13 days. This sets a somewhat damp tone for the winter, as the precipitation begins to taper in February with 106 mm (4.2 in) over 12 days. The trend continues with a slight rise in March, where 127 mm (5.0 in) falls over 17 days, but the overall pattern shows that the winter months remain relatively wet. As the seasons progress into spring and summer, the precipitation amounts typically surge, peaking in the lush months of July and August. January's precipitation establishes a solid base in the region's climate, ensuring a vibrant landscape as the year unfolds.
In January, Gersau, Switzerland, typically experiences a high humidity level of 92%, making it one of the dampest months of the year. This significant humidity not only contributes to the chill in the air but also affects the overall atmosphere of the picturesque town. As the year progresses, humidity levels gradually decrease, reaching their lowest point in May at 80%. However, a slight uptick occurs during the summer months, with July and August hovering around 83% and 80%, respectively. As autumn sets in, humidity rises again, peaking at 90% in both October and December, illustrating a cyclical pattern that highlights the interplay between seasonal changes and moisture levels in this beautiful Swiss locale.
In January, Gersau experiences a UV Index of 2, categorized as low, which means residents and visitors can enjoy the serene winter landscape with a minimal risk of sunburn—approximately 45 minutes of unprotected exposure is safe. As the seasons transition into February and March, the UV Index rises to 3 and 5 respectively, indicating a shift to a moderate exposure category. This gradual increase suggests that as sunlight strengthens in early spring, outdoor enthusiasts should remain mindful of their time in the sun. By April, the Index peaks at 6, marking the onset of high exposure levels, where protective measures become increasingly important. This upward trend continues through the summer months, with May and June reaching 8 and 9—both classified as very high, necessitating caution with only 15 minutes of burn time. As summer fades into fall, the UV Index declines, returning to a more moderate 4 in October and 3 in November, before dipping back to 2 in December. The data highlights a distinct seasonal pattern, urging residents to adjust their sun protection habits throughout the year. For more details, visit the Gersau UV Index.
UV Risk Categories
In January, Gersau, Switzerland, basks in an average of 164 hours of sunshine, setting the stage for a gradual increase as winter melts into spring. The days brighten significantly by February, with 228 hours of sunlight, hinting at the awakening of nature. March embraces the theme of renewal, witnessing a jump to 300 hours, while April and May continue this trend, reaching 358 and 370 hours respectively. As summer approaches, the sun shines most brilliantly in July, offering 415 hours of radiant warmth, followed closely by August, which provides 384 hours. This summer glow starts to fade in September, dropping to 320 hours, and continues its descent into autumn. By November, the sunshine retreats to 219 hours, and December concludes the year with a cozy 185 hours, reminding us of the seasonal cycles that bring both light and shadows to this picturesque Swiss locale.
January in Gersau, Switzerland, presents a modest 14% chance of sunny weather, marking it as one of the cloudier months of the year. As winter gives way to spring, the likelihood of sunshine begins a steady ascent, with February rising to 35% and March reaching 42%. This trend continues, culminating in April at 44%, suggesting that while January is often overcast, brighter days are just around the corner. Following the initial spring warmth, the probability fluctuates somewhat, with May and June experiencing lower chances of sun at 29% and 30% respectively, before stabilizing in the summer months. If you’re hoping for sunshine in January, it’s best to keep your expectations low, but take heart—more brilliant days are on the horizon!
In Gersau, Switzerland, January ushers in the year with a modest 8 hours of daylight, inviting a tranquil ambiance as winter rules the landscape. As the month fades into February, sunlight gradually increases, reaching 10 hours, hinting at the approaching warmth of spring. March continues this uplifting trend, further extending daylight to 11 hours, while April illuminates the scene with 13 hours of sunlight, bringing a vibrant start to the blooming season. The longest days arrive in the summer months, with May through July basking in 15 hours of daylight, beckoning outdoor enthusiasts to revel in nature’s beauty. As summer fades into autumn, daylight begins its gradual decline, with August still clinging to 14 hours, before September and October see it drop to 12 and 10 hours, respectively. By November, daylight reaches a low of 9 hours, before cycling back to 8 hours in December, completing the seasonal ebb and flow. This rhythmic pattern underscores the beauty of Gersau’s changing seasons, where each month uniquely contributes to the tapestry of daylight.
In January, the winds of Gersau, Switzerland gently sweep through the region with an average speed of 1.6 m/s (4 mph), making it one of the calmer months for this picturesque lakeside town. This moderate breeze continues into February, holding steady at the same brisk pace. However, as spring approaches, the wind begins to taper slightly, dropping to 1.4 m/s (3 mph) in March and consistently hovering around that speed for the following months, reaching its lowest point in August at just 1.2 m/s (3 mph). Interestingly, while the spring months show minimal fluctuations, a slight increase is observed again in October and December, hinting at the return of gentle breezes as winter sets in. Overall, the wind in Gersau provides a gentle backdrop to the serene beauty of its winter landscape, creating an atmosphere of tranquility that complements the stunning Alpine views.
Weather in Gersau varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Gersau, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February present distinct but somewhat similar winter weather conditions. In January, temperatures range from a chilly -15°C (5°F) at night to a milder 11°C (52°F) during the day, with an average temperature of -1°C (30°F). The month sees considerable precipitation of 144 mm (5.7 in) over 13 days and a high humidity of 92%. In contrast, February experiences slightly colder nights, with minimum temperatures dropping to -19°C (-1°F), yet daytime highs can still reach 14°C (58°F), leading to an average temperature of 1°C (34°F). Precipitation is somewhat reduced in February at 106 mm (4.2 in) over 12 days, and humidity levels are also slightly lower at 89%. For more detailed insights on February weather, you can check Gersau weather in February.
January and March in Gersau present distinct weather characteristics. In January, temperatures range from a chilly -15°C (5°F) at night to a slightly milder 11°C (52°F) during the day, with an average of -1°C (30°F). The month is marked by considerable precipitation, totaling 144 mm (5.7 in) over 13 days, and a high humidity level of 92%.
In contrast, March shows a noticeable warming trend, with minimum temperatures remaining at -15°C (6°F) but daytime highs reaching up to 18°C (64°F), resulting in an average temperature of 3°C (38°F). While precipitation decreases to 127 mm (5.0 in), it is experienced over more days, totaling 17. Despite the drop in humidity to 87%, March clearly feels more spring-like compared to the depths of winter in January. For a detailed look at the weather in March, you can explore Gersau weather in March.
In January, weather conditions are typically much colder, with temperatures ranging from a frigid -15°C (5°F) to a more moderate max of 11°C (52°F). The month experiences heavy precipitation, averaging 144 mm (5.7 in) over 13 days, and a high humidity level of 92%. In contrast, April brings a noticeable warming trend, with temperatures fluctuating between -7°C (19°F) and 22°C (71°F) and an average of 7°C (45°F). Although April has slightly less precipitation at 104 mm (4.1 in) over 12 days, the humidity decreases to 84%. For more details on this month's climate, check out Gersau weather in April.
The weather in January and May presents a stark contrast, with January experiencing chilling temperatures that range from a minimum of -15°C (5°F) to a maximum of 11°C (52°F), while May boasts milder conditions with temperatures starting at a low of -7°C (19°F) and soaring to a maximum of 27°C (80°F). January is characterized by high humidity at 92% and significant precipitation, totaling 144 mm (5.7 in) over 13 days. In contrast, May sees a slight increase in precipitation to 163 mm (6.4 in) across 19 days, but with lower humidity at 80%, signaling a shift towards a more pleasant atmosphere. For those interested in more detailed information, check out Gersau weather in May.
In January, temperatures often plummet, with minimums reaching as low as -15°C (5°F) and an average hovering around -1°C (30°F). The month experiences significant precipitation, totaling 144 mm (5.7 in) over 13 days, and maintains a high humidity level of 92%. In contrast, June brings a warm, vibrant atmosphere as temperatures rise, ranging from a minimum of 4°C (39°F) to a maximum of 31°C (88°F) with an average of 16°C (60°F). Despite having more precipitation at 189 mm (7.4 in) over 18 days, the humidity is comparatively lower at 82%. To explore more about the pleasant weather conditions in this summer month, visit Gersau weather in June.
January and July exhibit stark contrasts in weather conditions. In January, temperatures can drop as low as -15°C (5°F), with an average of -1°C (30°F) and a maximum of 11°C (52°F), making it the coldest month of the year. This chill is accompanied by high humidity at 92% and moderate precipitation of 144 mm (5.7 in) over 13 days. In contrast, July brings warmth and a more pleasant climate, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 31°C (87°F) and an average of 17°C (63°F). Although July sees a bit more precipitation at 190 mm (7.5 in) across 18 days, the humidity is slightly lower at 83%. For a closer look at July's weather in Gersau, check out Gersau weather in July.
In January, the weather is characterized by bitter cold, with temperatures ranging from a chilling -15°C (5°F) to a mild 11°C (52°F), creating an average of -1°C (30°F). This month also sees a high frequency of precipitation, totaling 144 mm (5.7 in) over 13 days, coupled with a humidity level of 92%, making it feel quite damp. In contrast, August brings a warm and pleasant climate, with temperatures varying from a minimum of 7°C (45°F) to a maximum of 29°C (84°F), resulting in an average of 17°C (63°F). Though it experiences more precipitation, totaling 203 mm (8.0 in) over 18 days, the humidity is lower at 80%, contributing to a more comfortable feel. For a closer look at August conditions, check out Gersau weather in August.
January and September offer strikingly different weather experiences. January is characterized by cold temperatures, with minimums plunging to -15°C (5°F) and an average around -1°C (30°F), presenting a wintery landscape and high humidity at 92%. In contrast, September brings a milder climate, where temperatures range from a minimum of 1°C (34°F) to a comfortable maximum of 25°C (77°F), accompanied by a lower humidity level of 83%. Both months see similar precipitation levels—144 mm (5.7 in) in January and 146 mm (5.8 in) in September—but the distribution of rainy days is slightly higher in September with 15 days compared to January's 13. To learn more about September weather, check out Gersau weather in September.
January and October present stark contrasts in weather characteristics. In January, temperatures can plunge as low as -15°C (5°F), with an average of -1°C (30°F) and a maximum reaching 11°C (52°F). The month sees considerable precipitation, totaling 144 mm (5.7 in) across approximately 13 days, accompanied by high humidity at 92%. In contrast, October offers a more moderate climate, with minimum temperatures around 1°C (34°F), an average of 9°C (49°F), and highs that can reach 20°C (68°F). Precipitation increases slightly to 165 mm (6.5 in) over 14 days, while humidity remains relatively high at 90%. For more insights into October weather, check out Gersau weather in October.
In comparing the weather between January and November, January typically showcases much colder temperatures, with averages slightly below freezing at -1°C (30°F), while November feels milder with an average of 4°C (39°F). The minimum temperatures in January can plunge to as low as -15°C (5°F), compared to November's cooler minimum of -7°C (19°F). Precipitation is more significant in January, with 144 mm (5.7 in) over 13 days, whereas November sees 102 mm (4.0 in) of rain across 14 days. Humidity is slightly higher in January at 92%, compared to November's 88%, making January feel notably chillier and damp. For a closer look at November weather, you can refer to Gersau weather in November.
In comparing the weather between January and December, January tends to be slightly colder, with average temperatures ranging from a minimum of -15°C (5°F) to an average of -1°C (30°F), whereas December sees milder temperatures, with a minimum of -11°C (12°F) and an average of 1°C (33°F). Although both months can experience similar maximum temperatures of up to 11°C (52°F), January receives less precipitation overall, with 144 mm (5.7 in) compared to December’s 171 mm (6.7 in), and features fewer rainy days, occurring on 13 days compared to December's 18 days. Additionally, humidity levels are slightly higher in January at 92%, compared to December's 90%. For more detailed information on December weather, you can refer to Gersau weather in December.
January in Gersau brings a striking contrast to the milder months, with colder temperatures and notable precipitation. While the average is chillier than in both preceding and following months, the bracing winter air often feels invigorating against the picturesque alpine backdrop. With high humidity levels making the chill feel even more pronounced, residents and visitors alike can expect 13 days of precipitation, adding a dramatic flair to the landscape. This month effectively captures the essence of winter, making it a unique time to experience the region's snowy charm. For more detailed climate insights, check out Gersau Climate.