Last updated: August 27, 2025
May in Pontresina, Switzerland brings a blend of varying temperatures and frequent precipitation. With maximum temperatures reaching 18°C (65°F) and dropping to a chilly -16°C (4°F) at night, visitors can expect an average of 4°C (39°F) throughout the month. Rain is quite common, with 133 mm (5.2 in) falling over 21 days, contributing to the region's lush landscapes. Humidity lingers at around 80%, creating a refreshing, albeit damp atmosphere that showcases the stunning natural beauty of this alpine village.
In May, Pontresina, Switzerland begins to shed the chill of winter, marking a transition into milder temperatures. With minimum lows around -16°C (4°F) and average highs reaching a pleasant 18°C (65°F), the month showcases a significant warming trend compared to the preceding colder months. As the average temperature climbs to 4°C (39°F), visitors can expect more inviting conditions for outdoor activities against a stunning alpine backdrop. This gradual warming heralds the onset of summer, offering a refreshing escape from the lingering winter temperatures that dominate the early part of the year, making it an ideal time for hiking and exploring the breathtaking landscapes of the region.
May marks a notable shift in Pontresina's precipitation landscape, with a significant increase in both the amount and frequency of rainfall. Accumulating 133 mm (5.2 inches) over 21 days, this month not only delivers the highest precipitation so far in the year but also sees nearly double the number of rainy days compared to April. The transition from a cooler, drier spring to a wetter May hints at the approaching summer season, suggesting that the region's lush landscapes are rejuvenated by this abundant rainfall. Subsequently, this trend continues into June and July, where 133 mm of precipitation is recorded again, indicating a pattern of sustained moisture that shapes Pontresina's vibrant seasonal character.
As spring fully unfolds in Pontresina, Switzerland, May brings a noticeable shift in humidity levels, dipping to 80%—the lowest since January. This decline from April's 84% suggests a gradual easing of moisture in the air as the region transitions into the warmer months. While June sees a slight uptick to 82%, the overall trend indicates a more temperate climate that encourages outdoor activities. With humidity levels gently fluctuating through the spring and summer, May provides a refreshing respite before the more humid months of August and September re-emerge. This distinctive pattern of humidity not only shapes the seasonal experience of Pontresina but also invites visitors to revel in its breathtaking landscapes and vibrant alpine atmosphere.
As spring transitions into summer, May in Pontresina, Switzerland, marks a noticeable peak in the UV Index, reaching 10, which falls into the very high exposure category. This significant increase signals the importance of sun protection, as the burn time diminishes to just 15 minutes. Following the upward trend from earlier months, where UV levels escalated from a moderate 3 in January to a high 8 in April, May’s conditions serve as a reminder that prolonged outdoor activities require diligent sun safety measures. The intensity of ultraviolet radiation will continue to soar into June and July, emphasizing the need for sunblock and protective clothing to safeguard against harmful rays. Stay informed about the UV Index and plan your outdoor adventures wisely by checking out Pontresina UV Index.
UV Risk Categories
As May arrives in Pontresina, Switzerland, the sunshine peaks to an impressive 363 hours, showcasing a vibrant shift towards warmer months. This gradual increase in daylight is evident as the year progresses—starting from a mere 182 hours in January, sunshine hours steadily climb, reflecting the burgeoning energy of spring. With every passing month leading up to May, the sun's presence grows stronger, culminating in a delightful prelude to summer. Following May, June and July promise even more radiance, with 389 and 414 hours respectively, inviting countless outdoor adventures amid the breathtaking alpine scenery. The upward trend in sunshine hours not only enhances the beauty of this quaint village but also sets a cheerful tone for locals and visitors alike, celebrating the splendor of daylight in the Swiss Alps.
In Pontresina, Switzerland, the likelihood of sunny weather in May sits at a moderate 31%, reflecting a slight dip from the sunnier days of early spring. As the seasons transition, March and April enjoy higher probabilities of sunshine at 43% and 40%, respectively. This trend suggests that while May does not bask in the sun's full glory, it remains a promising precursor to the summer months, inviting visitors to relish the serene mountain landscape. However, the sunshine chances drop slightly again in both July and August, maintaining a consistent forecast around 31% to 36%. As such, those planning a visit in May should embrace the variability of the alpine weather, preparing for both radiant moments and the refreshing mountain chill.
As the seasons shift in Pontresina, Switzerland, May heralds a delightful increase in daylight, offering approximately 15 hours of sunlight. This trend of growing brightness starts in January with 9 hours, steadily climbing through February and March. By April, days lengthen further, reaching 13 hours, but it’s May that truly maximizes exposure to sunlight. This month is part of a peak that continues into June, July, and slightly tapers in August, where daylight remains plentiful at 14 hours. The gradual decrease begins in September, leading to shorter days in the fall months, yet the vibrant daylight of May highlights the transition into summer and captivates both visitors and locals alike.
In Pontresina, Switzerland, May welcomes a delightful shift in the air with an average wind speed of 1.7 m/s (4 mph), mirroring the conditions of the preceding and succeeding months. This consistency hints at a stable climatic pattern, with the winds remaining gentle and inviting throughout spring and early summer. Notably, the slight uptick from April’s 1.5 m/s (3 mph) reflects a subtle and refreshing breeze, perfect for outdoor adventures amid the stunning alpine scenery. As the year progresses, wind speeds fluctuate minimally, maintaining a serene atmosphere ideal for enjoying the breathtaking landscapes and activities that this picturesque locale offers.
Weather in Pontresina varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Pontresina, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January weather present a striking contrast in temperature and precipitation patterns. In May, temperatures range from a minimum of -16°C (4°F) to a maximum of 18°C (65°F), with an average of 4°C (39°F). The month experiences 133 mm (5.2 in) of precipitation over 21 days and maintains a humidity level of 80%. In contrast, January is much colder, with temperatures ranging from a minimum of -29°C (-20°F) to a maximum of 2°C (35°F), averaging -11°C (12°F). January sees significantly lower precipitation at 67 mm (2.6 in) over just 9 days, but it has higher humidity at 92%. For a detailed look at January weather, visit Pontresina weather in January.
In comparing the weather of May and February, a stark contrast emerges. May experiences a more moderate temperature range, with minimums around -16°C (4°F) and maximums reaching up to 18°C (65°F), resulting in an average of 4°C (39°F). In terms of precipitation, May is significantly wetter, receiving 133 mm (5.2 in) over 21 days, while February sees much less, with only 52 mm (2.1 in) over 10 days. The humidity levels during both months are relatively high, but February is slightly more humid at 89% compared to May's 80%. This difference suggests that February's colder climate brings a more biting chill, while May's weather introduces a hint of spring warmth. For a closer look at February's weather specifics, you can visit Pontresina weather in February.
When comparing the weather in March and May, it's clear that May emerges with notably milder temperatures. While March's temperatures range from a minimum of -24°C (-12°F) to a maximum of 11°C (51°F), May offers a more favorable range, with lows around -16°C (4°F) and highs reaching up to 18°C (65°F). Precipitation also differs significantly; March sees 77 mm (3.0 in) over 12 days, while May experiences 133 mm (5.2 in) across 21 days, indicating that May is not only wetter but also more variable in terms of weather conditions. Additionally, the humidity is high in both months, with March at 87% and May slightly lower at 80%, making both months feel damp, but March is notably colder. For a closer look at March's weather specifics, check out Pontresina weather in March.
In comparing the weather of April and May, it is evident that May tends to be warmer and wetter. The minimum temperature in both months is the same at -16°C (4°F), but May boasts a higher average temperature of 4°C (39°F) compared to April’s -1°C (31°F). Additionally, the maximum temperature in May reaches up to 18°C (65°F), while April's highest is only 12°C (54°F).
Precipitation also significantly increases in May, with 133 mm (5.2 in) recorded over 21 days, compared to April’s 82 mm (3.2 in) over just 11 days. The humidity levels are slightly lower in May at 80%, compared to April’s 84%. For more detailed insights, you can explore Pontresina weather in April.
May and June exhibit notable differences in weather patterns, showcasing a shift towards warmer temperatures as spring transitions into summer. In May, temperatures range from a chilly minimum of -16°C (4°F) to a maximum of 18°C (65°F), with an average of just 4°C (39°F). The month experiences significant rainfall, totaling 133 mm (5.2 in) over 21 days, accompanied by high humidity levels of 80%. In contrast, June brings milder conditions with temperatures ranging from a minimum of -3°C (27°F) to a much warmer maximum of 24°C (76°F), and an average of 10°C (50°F). The precipitation slightly decreases to 120 mm (4.7 in) over 18 days, while humidity remains high at 82%. For more specific details on the weather in June, you can check Pontresina weather in June.
In May, the weather is quite cool, with temperatures ranging from a chilly -16°C (4°F) at night to a comfortable 18°C (65°F) during the day, resulting in an average of 4°C (39°F). The month experiences a significant amount of precipitation, with 133 mm (5.2 in) falling over 21 days, coupled with high humidity levels around 80%.
In contrast, July brings warmer conditions, with nighttime lows of 1°C (34°F) and daytime highs reaching 24°C (75°F), averaging 11°C (52°F). While precipitation remains the same at 133 mm (5.2 in) over 21 days, humidity slightly increases to 83%. For more detailed information, check out Pontresina weather in July.
In May, temperatures range from a chilly minimum of -16°C (4°F) to a pleasant maximum of 18°C (65°F), averaging around 4°C (39°F). The month experiences considerable precipitation, with about 133 mm (5.2 in) falling over 21 days, contributing to a humid environment with 80% humidity. In contrast, August offers a wider temperature range with a minimum of 0°C (33°F) and a maximum of 22°C (71°F), averaging 11°C (52°F). Although it sees slightly more precipitation at 160 mm (6.3 in) over 19 days, the humidity remains the same at 80%. For more details, you can visit Pontresina weather in August.
May and September both present cool temperatures, but with notable differences in their weather patterns. In May, the temperatures range from a chilly minimum of -16°C (4°F) to an average of 4°C (39°F), peaking at 18°C (65°F). This month experiences higher precipitation, totaling 133 mm (5.2 in) over 21 days, coupled with a humidity level of 80%. On the other hand, September offers slightly milder conditions, with temperatures ranging from a minimum of -13°C (9°F) to an average of 7°C (44°F), and a maximum of 19°C (66°F). Precipitation in September is lower at 109 mm (4.3 in) over 14 days, and humidity increases slightly to 83%. For a detailed look at September weather, you can refer to Pontresina weather in September.
In comparing the weather of May and October, May presents a wider temperature range, with lows reaching -16°C (4°F) and highs peaking at 18°C (65°F), resulting in an average of 4°C (39°F). The month experiences significant precipitation, with 133 mm (5.2 in) falling over 21 days, and humidity levels around 80%. In contrast, October offers a slightly narrower temperature range, featuring minimums of -12°C (11°F) and maximums of 14°C (58°F), averaging 2°C (37°F). Although it has slightly less overall precipitation at 126 mm (5.0 in) over just 10 days, the humidity is higher at 90%. For a detailed look at Pontresina's October weather, you can check Pontresina weather in October.
In May, temperatures begin to warm up, ranging from a chilly minimum of -16°C (4°F) to a pleasant maximum of 18°C (65°F), with an average of around 4°C (39°F). The month sees considerable precipitation, totaling 133 mm (5.2 in) over 21 days, contributing to a relatively humid atmosphere with levels around 80%. In contrast, November brings much colder conditions, with temperatures dropping to a minimum of -23°C (-9°F) and an average of -4°C (25°F), peaking at just 9°C (48°F). Although November's precipitation is slightly lower at 123 mm (4.8 in), it occurs over fewer days—13 in total—and the humidity rises to 88%. For more detailed information, you can check Pontresina weather in November.
May and December present starkly contrasting weather conditions. In May, temperatures typically range from a minimum of -16°C (4°F) to a pleasant average of 4°C (39°F), peaking at 18°C (65°F). The month sees considerable precipitation, averaging 133 mm (5.2 in) over 21 days, coupled with a humidity level of 80%.
In contrast, December experiences much colder temperatures, with averages dropping to -9°C (16°F) and maximums only reaching 2°C (36°F). Although precipitation is slightly lower at 116 mm (4.6 in) over 14 days, the humidity rises to 90%, creating a frosty atmosphere. For more details on December conditions, refer to Pontresina weather in December.
As winter gives way to spring, May in Pontresina is marked by a gentle transition, showcasing milder temperatures compared to the chill of previous months. While averages peak at a comfortable 18°C for a few days, the lingering coolness reminds us of the region's alpine essence, with lows descending to near-freezing temperatures. Although precipitation remains prevalent, with about 21 days of rain, this is balanced by the vibrant greenery and blooming flora that emerge during this month. The increased humidity at around 80% adds to the refreshing feel of the surroundings, making May a unique and invigorating time to experience the beauty of Pontresina. For a deeper understanding of weather patterns throughout the year, explore the detailed Pontresina Climate information.