Last updated: August 27, 2025
In May, Zermatt, Switzerland, showcases a fascinating blend of springtime beauty and lingering winter chill. With maximum temperatures reaching 15°C (58°F) and an average of just 2°C (37°F), visitors can expect a crisp and refreshing atmosphere. Nights can plunge to a brisk minimum of -13°C (9°F), reminding us that winter is not yet fully behind us. Precipitation is significant this month, totaling around 180 mm (7.1 in) over 20 days, contributing to the lush landscape that Zermatt is renowned for. The humidity levels, averaging 74%, enhance the vibrant aromas of blooming flora, making it a picturesque time for outdoor adventures amidst the stunning backdrop of the Alps.
In May, Zermatt, Switzerland, starts to shake off the winter chill as temperatures gradually rise. With a minimum of -13°C (9°F) and a pleasant maximum of 15°C (58°F), this month marks a significant warming trend compared to the lingering depths of winter. The average temperature hovers around 2°C (37°F), hinting at the promising approaches of summer. As sunlight begins to bathe the majestic Matterhorn, May offers the perfect balance for outdoor enthusiasts, inviting both hiker and skier alike to enjoy the breathtaking alpine scenery without the harshness of colder months. This transition serves as a vibrant prelude to the lushness that June will bring.
May in Zermatt, Switzerland, marks a notable pivot in the precipitation landscape, showcasing the highest monthly rainfall of the year at 180 mm (7.1 in). This substantial accumulation occurs over approximately 20 days, making May a month characterized by frequent showers and lush greenery. The transition from the drier months of winter to the wet spring season is evident, as precipitation begins to rise significantly; April, with 135 mm, serves as a precursor, while the subsequent months of June through August continue this trend, each receiving even more rainfall. This increase aligns with the arrival of warmer temperatures, suggesting that May is not only a transition period but also a time for growth and rejuvenation in the breathtaking alpine landscape of Zermatt.
In Zermatt, Switzerland, May marks a significant transition in humidity levels, as the atmospheric moisture begins to decline following the peak of winter. With an average humidity of 74%, May showcases a more moderate environment compared to the winter months, when humidity levels hover around 88% in January. This decline continues into summer, culminating in a low of 64% in August. The gradual decrease during this spring month hints at the approaching warm season, offering a refreshing contrast to the cooler, more humid conditions experienced earlier in the year. As the air becomes less saturated, visitors can enjoy the breathtaking scenery of the Alps in a more comfortable climate, paving the way for engaging outdoor adventures.
In Zermatt, Switzerland, the UV Index in May remains elevated at 9, falling into the very high exposure category, much like the preceding month of April. This consistency highlights a trend towards stronger sun exposure as spring transitions into summer. With a swift burn time of just 15 minutes, it's essential for residents and visitors alike to prioritize sun protection to avoid skin damage. As the warmer months approach, awareness of these signals is crucial, especially when the UV Index escalates to extremes in June. For detailed insights on UV levels throughout the year, check out Zermatt UV Index.
UV Risk Categories
In the enchanting mountain town of Zermatt, Switzerland, the arrival of May brings a vibrant surge of sunshine, providing a remarkable 378 hours of daylight—an increase that marks the transition into the sunnier months. Following a steady upward trend since January, where sunlight was more scarce at 184 hours, each successive month brings brighter days: from 244 hours in February to a delightful 355 hours in April. As the landscape flourishes and the majestic peaks of the Alps bask in warmth, May stands out as a pivotal moment, leading seamlessly into a summer characterized by even longer days, with June and July peaking at 402 and 425 hours, respectively. This radiant progression not only enhances the beauty of Zermatt but also ignites the spirit of adventure among visitors, inviting exploration and enjoyment in nature's splendid embrace.
In Zermatt, Switzerland, the likelihood of sunny weather in May is 31%, which reflects a slight dip from the preceding months of April and March, where the chances were higher at 42% and 47%, respectively. This trend suggests that as spring progresses, the sunny days may become less frequent. Interestingly, while the summer months of July and August also maintain a 31% chance of sun, the overall pattern indicates that the peak sunny days are more prevalent in early spring rather than late spring or early summer. Thus, May presents a transitional period in Zermatt's weather, where sun-seekers should prepare for a mix of sunny spells and potential clouds.
As spring transitions into summer, Zermatt, Switzerland experiences a remarkable increase in daylight, culminating in May with 14 hours of sunlight. This growth begins subtly in January with just 9 hours, and by February, the sun graces the valley for 10 hours. The days continue to lengthen, reaching 11 hours in March and 13 hours in April. May marks a vibrant peak as the warmth of extended daylight encourages outdoor exploration and enjoyment of the breathtaking alpine scenery. The daylight hours remain plentiful through June and July, where it stabilizes at 15 hours, before gracefully tapering off in the following months. This clear progression not only highlights the arrival of summer but also serves as an invitation to revel in Zermatt's stunning landscapes under the sun.
In Zermatt, Switzerland, the May winds are gentle and calm, echoing the transition from the briskness of winter to the tenderness of spring. The average wind speed in May is 1.4 m/s (3 mph), slightly higher than the previous month’s 1.3 m/s, yet still among the milder readings of the year. Following a consistent trend, the winds remain relatively subdued from January through June, fluctuating between 1.1 to 1.7 m/s, with a noticeable dip in June where the winds reach their annual low. This gentle breeze in May, coupled with the blooming landscape, creates a serene atmosphere perfect for exploring the enchanting alps, ensuring that the winds inspire more than just movement, but also a sense of tranquility amidst breathtaking views.
Weather in Zermatt varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Zermatt, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present stark contrasts in weather conditions. In May, temperatures range from a minimum of -13°C (9°F) to a comfortable average of 2°C (37°F), peaking at a pleasant 15°C (58°F). The month sees about 180 mm (7.1 in) of precipitation spread over 20 days, accompanied by a humidity level of 74%. In contrast, January is much colder, with temperatures dipping down to a minimum of -27°C (-17°F) and averaging -11°C (12°F), with a maximum of only 1°C (34°F). Despite having less precipitation at 117 mm (4.6 in) over 10 days, January is notably more humid, with levels reaching 88%. For more information on January weather, you can visit Zermatt weather in January.
When comparing the weather in May and February, a clear contrast emerges. May enjoys milder temperatures, ranging from a minimum of -13°C (9°F) to a maximum of 15°C (58°F), with an average around 2°C (37°F). In contrast, February is much colder, with temperatures dipping as low as -26°C (-14°F) and reaching a maximum of 7°C (45°F) on average. Precipitation is significantly higher in May, with 180 mm (7.1 in) falling over 20 days, compared to February's 66 mm (2.6 in) spread over just 11 days. Furthermore, humidity levels are somewhat higher in February at 81%, while May has a humidity of 74%. For more details, check Zermatt weather in February.
When comparing the weather in May and March, it is clear that May offers significantly milder temperatures, with averages around 2°C (37°F) and maximums reaching 15°C (58°F). In contrast, March presents much colder conditions, with average temperatures around -6°C (22°F) and a stark minimum of -29°C (-19°F). Precipitation levels are also higher in May, totaling 180 mm (7.1 in) over 20 days, compared to 105 mm (4.2 in) over 14 days in March. The humidity is slightly lower in May at 74%, compared to 76% in March. For more detailed insights, check out Zermatt weather in March.
In comparing the weather of April and May, May presents a notable warming trend, with average temperatures rising from -2°C (30°F) in April to 2°C (37°F). Additionally, May's maximum temperature reaches 15°C (58°F), compared to April's 11°C (52°F). While both months experience significant precipitation, May sees a higher amount at 180 mm (7.1 in) over 20 days, compared to April's 135 mm (5.3 in) across just 12 days. Humidity levels remain relatively high, averaging 74% in May and 77% in April. For further details on conditions in April, you can explore Zermatt weather in April.
May in Zermatt experiences chilly temperatures, with a minimum of -13°C (9°F) and an average of 2°C (37°F), peaking at 15°C (58°F). The month is quite wet, recording 180 mm (7.1 in) of precipitation over 20 days, accompanied by a relatively high humidity of 74%. In contrast, June shows a marked warming trend, with minimum temperatures rising to -5°C (24°F) and an average of 8°C (47°F), while maximum temperatures can reach 23°C (74°F). However, June also brings slightly more precipitation at 210 mm (8.3 in) over 21 days, with humidity decreasing to 71%. For a deeper dive into what to expect during this month, check out Zermatt weather in June.
In comparing the weather between May and July, we see notable differences in temperature and humidity levels. May typically experiences cooler conditions, with average temperatures around 2°C (37°F), while July warms up significantly, boasting an average temperature of 10°C (51°F). Precipitation remains relatively consistent, with May receiving 180 mm (7.1 in) over 20 days and July recording slightly higher precipitation at 187 mm (7.3 in) over 21 days. Additionally, humidity levels decrease from 74% in May to 67% in July, contributing to a more comfortable summer atmosphere. For a more detailed look at July's weather, you can visit Zermatt weather in July.
May and August showcase distinct weather patterns in Zermatt. In May, temperatures range from a chilly minimum of -13°C (9°F) to a pleasant maximum of 15°C (58°F), with an average of 2°C (37°F). The month experiences significant precipitation, with 180 mm (7.1 in) falling over 20 days, and a humidity level of 74% contributes to the cool, damp atmosphere. In contrast, August offers a milder climate, featuring temperatures that range from a minimum of -1°C (30°F) to a comfortable maximum of 21°C (70°F), with an average of 10°C (50°F). While August is slightly wetter, with 215 mm (8.4 in) of rain over 21 days, the humidity is lower at 64%. For more details on August's weather, you can visit Zermatt weather in August.
In May, the weather is characterized by colder temperatures, with a minimum of -13°C (9°F) and an average of 2°C (37°F), reaching a high of 15°C (58°F). This month also sees a significant amount of precipitation, totaling 180 mm (7.1 in) over 20 days, with humidity lingering at 74%. In contrast, September brings milder conditions, with temperatures ranging from a minimum of -7°C (20°F) to an average of 6°C (44°F) and a maximum of 17°C (64°F). Precipitation in September is lower at 116 mm (4.6 in) over 19 days, while humidity remains constant at 74%. For more detailed insights into the weather during this month, you can check Zermatt weather in September.
May and October in Zermatt exhibit similar cold temperatures, with both months experiencing a minimum of -13°C (9°F). However, the average temperatures differ slightly, with May averaging 2°C (37°F) and October slightly lower at 2°C (35°F). Precipitation levels are also comparable; May sees 180 mm across 20 days, while October has a bit more at 193 mm over 13 days. Interestingly, October tends to be more humid, with 87% humidity compared to May's 74%. For more details on October weather, you can visit Zermatt weather in October.
May and November present distinctly different weather patterns. In May, temperatures begin to warm with a minimum of -13°C (9°F) and maximum of 15°C (58°F), leading to an average of 2°C (37°F). The month experiences considerable precipitation, totaling 180 mm (7.1 in) over about 20 days, with humidity at a relatively moderate 74%. In contrast, November is much colder, with a minimum temperature plunging to -24°C (-11°F) and a maximum of only 9°C (49°F), averaging -5°C (24°F). Precipitation is slightly lower at 167 mm (6.6 in) over 16 days, but the humidity increases to 88%, creating a chillier atmosphere. For more details, you can refer to Zermatt weather in November.
In May, temperatures in Zermatt show a marked increase, with lows around -13°C (9°F) and highs reaching up to 15°C (58°F), resulting in a mild average of 2°C (37°F). The month sees about 180 mm (7.1 in) of precipitation over approximately 20 days, with humidity levels at 74%. In contrast, December experiences much colder temperatures, with a minimum of -26°C (-14°F) and a maximum of just 2°C (36°F), leading to an average of -10°C (14°F). The precipitation in December is slightly lower at 145 mm (5.7 in) over 16 days, but humidity is higher at 85%. For more insights, you can check Zermatt weather in December.
As May unfolds in Zermatt, the weather takes on a unique character compared to the harsher winter months. Temperatures begin to warm up, reaching a pleasant maximum of 15°C, contrasting sharply with the cold of earlier seasons, while nights still retain a chill. However, May is marked by increased precipitation, averaging around 180 mm over about 20 days, giving a refreshing yet damp ambiance to the landscape. Humidity levels hover around 74%, adding to the refreshing air, making it a transition month for both the weather and the natural beauty of the area. If you seek a detailed overview of how the climate evolves throughout the year, you can explore Zermatt Climate.