Last updated: August 27, 2025
In May, Sankt Gallen experiences a diverse range of weather conditions, showcasing the beauty of spring in Switzerland. With maximum temperatures reaching a pleasant 29°C (85°F) and an average of 13°C (56°F), the month brings warmth and vibrancy to the region. However, chilly nights dip to as low as 0°C (32°F), reminding us of the lingering cold snap. A total of 147 mm (5.8 in) of precipitation falls over 17 rainy days, resulting in an 80% humidity level that enhances the lush greenery characteristic of this picturesque area. Whether exploring the vibrant streets or enjoying the scenic landscapes, May in Sankt Gallen offers a dynamic interplay between sun and rain, making for an enchanting experience.
As May unfolds in Sankt Gallen, Switzerland, the town basks in a refreshing spring atmosphere, with temperatures marking a significant upward trend. The month begins with a pleasant minimum of 0°C (32°F), leading to an average of 13°C (56°F) and peaking at a delightful 29°C (85°F). This warming pattern follows the gradual increase seen from the chill of winter, where January's frigid lows of -14°C (7°F) slowly give way to more inviting conditions. By May, the landscape transitions into vibrant greenery, enticing locals and visitors to enjoy the blossoming scenery under the sun's comforting rays. The progression towards warmer temperatures makes May a truly enchanting time to experience the charm of Sankt Gallen.
In May, Sankt Gallen experiences a notable increase in precipitation, with 147 mm (5.8 in) of rain falling over 17 days. This marks a significant uptick compared to the preceding months, showcasing the transition into wetter conditions as spring unfolds. Following a relatively dry April with only 79 mm over 11 days, May's rainfall sets the stage for a lush landscape, powered by the longer days and warming temperatures. As the month progresses, the average daily precipitation not only surpasses that of any previous month since January but also foreshadows the wetter summer months ahead, highlighting a clear trend of increasing moisture as the year advances.
As spring transitions into summer in Sankt Gallen, Switzerland, May brings a noticeable shift in humidity levels, dipping to 80%. This reduction marks a significant decline from the higher humidity figures of winter, which hover around 92% in January and taper off to 84% by April. The gradual decrease in humidity throughout the spring months reflects the warming climate, paving the way for the more comfortable conditions of summer. Interestingly, the trend continues, with June and July seeing a slight rise in humidity, correlating with rising temperatures, yet May remains a pivotal month where residents often enjoy a refreshing break from the heavier, damp air characteristic of the earlier months.
As spring unfolds in Sankt Gallen, May marks a significant spike in the UV Index, rising to an impressive 8, categorized as very high. This increase signals a dramatic shift from the moderate exposure levels earlier in the year, particularly notable from February through April. With a burn time of just 15 minutes, it’s imperative for residents and visitors to gear up for sun protection. This trend continues into June and July, where the UV Index remains at a challenging 9. As the days grow longer and sunnier, taking proactive measures becomes essential. For more insights on UV exposure and safety, check out Sankt Gallen UV Index.
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As spring unfolds in Sankt Gallen, May shines brightly with an impressive 356 hours of sunshine, marking a delightful peak in the month-to-month increase that began in January. With each passing month, the sun has gradually increased its presence, rising from 150 hours in January to its highest point in July. Notably, May's sunshine hours outshine those of the previous months, reflecting the transition into the vibrant and warm days of late spring. This steady rise from a meager 218 hours in February to nearly 400 hours by July signals the approach of summer, inviting residents and visitors alike to embrace the outdoors and bask in the rejuvenating rays of sunlight. As the season transitions, the freshness of May serves as a gentle reminder of nature's beauty, setting the stage for sun-soaked summer adventures ahead.
In Sankt Gallen, Switzerland, the likelihood of sunny weather shows a fascinating seasonal dance, peaking in spring before gradually tapering off into the summer months. Notably, May, with its 34% chance of sunshine, reveals a slight dip from the sunnier April days at 47%. As residents eagerly anticipate warmer weather, the sun's appearances become less certain as summer approaches, where June and July both hover around 34%. This trend underscores the transition from the invigorating brightness of early spring to the more temperate, although potentially cloudier, summer days, inviting locals and visitors alike to savor each sunny moment while it lasts.
As spring unfolds in Sankt Gallen, Switzerland, May brings a radiant flourish with an impressive 15 hours of daylight. This marks a delightful peak in illumination, following a gradual increase from 8 hours in January to 13 hours by April. As the days stretch longer, the vibrant natural beauty of the region is on full display, inviting residents and visitors alike to bask in the sunshine. Following May, daylight begins to slowly taper off, stabilizing at 15 hours in June and July before gradually descending through the late summer and autumn months. This rhythmic dance of daylight not only enhances outdoor activities but also enriches the idyllic atmosphere that defines Sankt Gallen throughout the year.
May in Sankt Gallen, Switzerland, ushers in a refreshing shift in wind patterns, with an average wind speed of 2.6 m/s (6 mph)—the highest since the beginning of the year. As spring reaches its peak, the gentle breezes begin to invigorate the landscape, contrasting with the calmer winds of earlier months. Notably, this marked increase from the 2.1 m/s (5 mph) observed in April hints at a transition to a more dynamic seasonal climate. As the city blooms with life, the slightly elevated winds in May create a lively atmosphere, setting the stage for the approaching summer, where wind speeds tend to mellow once more. This upward trend during May invites both locals and visitors alike to embrace the outdoors, enjoying the combination of warmer temperatures and invigorating winds.
Weather in Sankt Gallen varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sankt Gallen, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of May and January, significant differences are evident. May experiences much milder temperatures, with averages around 13°C (56°F) and highs reaching up to 29°C (85°F), while January's temperatures are considerably colder, averaging 0°C (33°F) and peaking at just 14°C (57°F). Additionally, May has higher precipitation levels at 147 mm (5.8 in) over 17 days, compared to January's 106 mm (4.2 in) across 12 days, though January’s humidity is slightly higher at 92% versus May's 80%. For more information on January weather specifics, check Sankt Gallen weather in January.
May presents a much warmer landscape compared to February. While February experiences chilling temperatures with a minimum of -13°C and an average of just 2°C, May sees a more inviting minimum of 0°C and an average of 13°C, sometimes peaking at 29°C. Additionally, February's shorter days can feel dreary with heavier humidity at 89%, but May’s 80% humidity, despite being still high, brings a touch of warmth along with its significantly greater precipitation amount of 147 mm over 17 days. In contrast, February has less rain at 85 mm over 12 days. For more detailed weather comparisons, you can refer to Sankt Gallen weather in February.
In comparing the weather of March and May, it is clear that May offers significantly warmer temperatures, with averages reaching 13°C (56°F) compared to March's average of just 5°C (42°F). While March experiences a chillier minimum temperature of -14°C (8°F), May's temperatures can climb to a pleasant maximum of 29°C (85°F). Both months bring a similar number of rainy days, with May recording 17 days of precipitation versus March's 16 days, but May accumulates a higher total rainfall of 147 mm (5.8 in) compared to March's 100 mm (3.9 in). Additionally, humidity levels are slightly lower in May at 80% compared to March's 87%, which may contribute to a more comfortable atmosphere as spring progresses. For more detailed insights into March weather, you can refer to Sankt Gallen weather in March.
In comparing the weather of April and May, we see a noticeable warming trend as spring progresses. April experiences a minimum temperature of -6°C (22°F) and an average of 9°C (49°F), while May sees a minimum of 0°C (32°F) and an average of 13°C (56°F). The maximum temperatures in April reach 24°C (76°F), compared to May’s higher peak of 29°C (85°F). Precipitation also increases in May, with 147 mm (5.8 in) over 17 days, compared to April's 79 mm (3.1 in) over 11 days. Humidity slightly decreases from 84% in April to 80% in May. For more detailed information, you can check Sankt Gallen weather in April.
May and June exhibit notable differences in weather patterns. While May experiences cooler temperatures, with a minimum of 0°C (32°F) and an average high of 29°C (85°F), June sees a substantial rise in warmth, where the minimum temperature starts at 7°C (44°F) and peaks at 32°C (91°F). Precipitation remains relatively consistent, with May receiving 147 mm (5.8 in) and June slightly higher at 168 mm (6.6 in), although both months experience rain on approximately 17 days. Additionally, humidity levels are quite similar, hovering around 80% in May and slightly increasing to 82% in June. For a more detailed look at June's weather, check out Sankt Gallen weather in June.
May and July exhibit quite distinct weather patterns, reflecting the transition from spring to summer. In May, temperatures range from a chilly minimum of 0°C (32°F) to a comfortable maximum of 29°C (85°F), with an average of 13°C (56°F). Precipitation is relatively high, totaling 147 mm (5.8 in) over 17 days, and humidity levels hover around 80%. In contrast, July brings warmer conditions, with minimum temperatures of 10°C (51°F) and maximums reaching 33°C (91°F), averaging 19°C (67°F). Although July sees a higher total precipitation of 159 mm (6.3 in) over 18 days, the humidity slightly increases to 83%. For more information on July's weather specifics, visit Sankt Gallen weather in July.
In comparing the weather between May and August, we can observe notable differences. May experiences a wider range of temperatures, with a minimum of 0°C (32°F) and a maximum of 29°C (85°F), resulting in an average temperature of 13°C (56°F). In contrast, August is generally warmer, with minimum temperatures at 9°C (49°F) and maximums reaching 33°C (91°F), yielding a comfortable average of 19°C (66°F). Precipitation is slightly higher in August at 194 mm (7.7 in), compared to May's 147 mm (5.8 in), though both months have rain on about 17 days. The humidity remains consistent at 80% throughout both months. For a detailed look at August's weather, you can check out Sankt Gallen weather in August.
May and September present distinct weather profiles as spring transitions into autumn. In May, temperatures range from a chilly 0°C (32°F) at night to a warm 29°C (85°F) during the day, with an average temperature of 13°C (56°F). The month experiences considerable precipitation, totaling 147 mm (5.8 in) across 17 days, and a humidity level averaging 80%. In contrast, September sees a milder temperature spectrum, with minimums of 4°C (40°F), an average of 15°C (59°F), and maximums reaching 27°C (80°F). Precipitation is slightly lower at 128 mm (5.0 in) over 13 days, along with a modest increase in humidity at 83%. For a detailed look at the September weather, you can visit Sankt Gallen weather in September.
May and October exhibit distinct weather patterns, with May generally being warmer and sunnier. In May, temperatures fluctuate from a chilly 0°C (32°F) at night to a comfortable high of 29°C (85°F) during the day, with an average of 13°C (56°F). However, it also sees considerable precipitation, totaling 147 mm (5.8 in) over about 17 days, and a humidity level of 80%. In contrast, October is cooler, with minimum temperatures around 2°C (35°F) and maximums reaching 23°C (73°F), averaging at 10°C (51°F). It experiences slightly less rainfall at 119 mm (4.7 in) over 14 days and a higher humidity level of 90%. For more detailed information, you can refer to Sankt Gallen weather in October.
May and November showcase distinctly different weather patterns. In May, temperatures range from a chilly 0°C (32°F) at night to a warm 29°C (85°F) during the day, contributing to an average of 13°C (56°F). This month sees significant precipitation, with over 147 mm (5.8 in) falling over approximately 17 days, and humidity levels remain high at 80%. In contrast, November experiences cooler temperatures, with nighttime lows dipping to -2°C (29°F) and daytime highs reaching only 19°C (67°F), averaging just 5°C (42°F). Precipitation drops to 72 mm (2.8 in) over 11 days, while humidity increases slightly to 88%. These variations highlight the transition from spring warmth to late autumn chill. For more details, you can check out Sankt Gallen weather in November.
May and December exhibit contrasting weather patterns in Sankt Gallen. In May, temperatures range from a chilly 0°C (32°F) at night to a warm 29°C (85°F) during the day, with an average temperature of 13°C (56°F). The month sees considerable precipitation, amounting to 147 mm (5.8 in) over 17 days, accompanied by a humidity level of 80%. In contrast, December experiences much colder conditions, with temperatures dropping to a minimum of -7°C (19°F) and an average of only 2°C (36°F), peaking at 12°C (54°F). While precipitation is slightly less at 135 mm (5.3 in) over 18 days, the humidity rises to 90%. For a detailed look at December weather, you can refer to Sankt Gallen weather in December.
As spring reaches its peak in Sankt Gallen, May brings a delightful warmth that sets it apart from the chillier months that precede it. With maximum temperatures soaring up to 29°C, the days become increasingly inviting, perfect for outdoor activities. However, the month is also characterized by a fair share of rainfall, with 17 days registering precipitation, adding a refreshing touch to the environment. Despite the occasional showers, the average temperature hovers around a pleasant 13°C, making it a favorable time for both locals and travelers. The heightened humidity ensures that the air feels lush, transforming the landscape into a vibrant spectacle. For more detailed insights into the weather patterns throughout the year, check out Sankt Gallen Climate.