Last updated: August 27, 2025
Sierre, Switzerland, experiences a dynamic May characterized by a maximum temperature of 22°C (72°F), ideal for enjoying the stunning alpine scenery. However, the average temperature hovers around a cool 6°C (43°F), while nights can plunge to a chilly minimum of -16°C (4°F). With 160 mm (6.3 in) of precipitation spread across 20 days, residents and visitors often navigate wet conditions amidst an 80% humidity level, making layers essential for outdoor activities. Whether exploring vibrant flora or cozying up in local cafes, May offers a unique blend of springtime charm in this picturesque Swiss town.
In May, Sierre, Switzerland experiences a noticeable transition from the biting cold of winter to the gentle warmth of spring. With minimum temperatures hovering around -16°C (4°F) and maximums reaching a pleasant 22°C (72°F), this month embodies a delightful shift in climate. The average temperature peaks at 6°C (43°F), signaling a significant increase compared to the earlier months. As spring unfolds, Sierre’s landscapes begin to blossom, inviting locals and visitors alike to bask in the emerging warmth and enjoy the vibrant beauty of nature. This gradual warming trend not only enhances outdoor activities but also sets the stage for a splendid summer ahead.
In May 2023, Sierre, Switzerland, experiences a notable increase in precipitation, with 160 mm (6.3 in) of rainfall recorded over 20 days. This uptick follows a drier April, highlighting May as the wettest month of the year so far. The steady rise in wet days indicates a shift towards a more temperate climate, where delightful spring showers prepare the landscape for the vibrant growth of summer. Notably, this trend of increased precipitation continues into June, albeit at slightly lower levels, suggesting that May’s rains play a crucial role in enriching the environment as the seasons transition.
In Sierre, Switzerland, the humidity experiences a noticeable decline as spring transitions to summer. Starting from a humid 91% in January, the levels gradually decrease each month, reaching 80% by May. This drop reflects the warming temperatures and the drying influence of approaching summer. Interestingly, as the year progresses, humidity levels stabilize somewhat, with June and July hovering around 82% before dipping in August to 77%. This trend illustrates a shift from the damp chill of winter to a milder, more comfortable atmosphere, making May a delightful precursor to the sunny days ahead. As autumn approaches again, humidity rises back up, peaking at 89% in late fall, bringing that familiar coolness back to the region.
In May, Sierre, Switzerland experiences a significant uptick in the UV Index, reaching an impressive 10, categorizing exposure as very high. As spring unfolds, the potential for sunburn decreases to just 15 minutes of unprotected exposure, marking a stark contrast to the earlier months where the burn times were notably longer. This trend of increasing UV intensity from January’s moderate index of 3 to the extreme levels in June highlights the importance of sun safety as the summer approaches. With skin protection becoming crucial, residents and visitors alike should stay informed about daily UV levels. For detailed information, check the Sierre UV Index.
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In Sierre, Switzerland, the month of May shines brightly, boasting an impressive 360 hours of sunshine. This delightful increase in sunlight follows a steady upward trend from April, which recorded 355 hours, and continues into the sun-soaked days of June with 388 hours. The transition from spring to summer emerges as the sun bathes the region for longer periods, making May not only a pivotal moment of warmth but also a precursor to the sunniest months of the year. As each month moves forward, Sierre benefits from more sunlight, creating an inviting atmosphere that encourages both locals and visitors to bask in the beauty of the Alps under the golden rays.
In Sierre, Switzerland, May brings a 32% chance of sunny weather, a slight dip compared to the more promising months of March and April, which see opportunities for sunshine at 45% and 44%, respectively. As spring transitions into summer, the likelihood of sun begins to level out, with June holding steady at 32%. While May may not boast the highest probability for sunny skies, the enchanting blooms and pleasant temperatures still make it an appealing time to visit. Interestingly, the chances of sunlight improve as the year progresses, with a notable peak around October, suggesting that while May can be somewhat unpredictable, the allure of Sierre's springtime beauty remains undeniable.
As spring blossoms into summer in Sierre, Switzerland, the increase in daylight duration is a testament to the region's vibrant transition. Starting from a modest 9 hours in January, the days gradually lengthen, reaching 14 hours by May. This trend continues, peaking at a delightful 15 hours during the peak of summer in June and July. As summer wanes, daylight starts to recede in August, with 14 hours still gracing the evenings before tapering off to 12 hours in September. The shift from long sunlit days to shorter winter hours underscores the rhythmic beauty of the seasons, as Sierre gracefully navigates through its annual cycle of light.
In Sierre, Switzerland, the May winds create a gentle ambiance, with an average speed of 1.1 m/s (3 mph). This consistent breeze is mirrored by the preceding months of April and March, which also showcase tranquil wind patterns, averaging at 1.1 m/s (3 mph) and 1.1 m/s (3 mph), respectively. As the season transitions toward summer, the upcoming months of June and July predict a slight decrease in wind speed, dipping to 1.0 m/s (2 mph). This trend suggests a serene atmosphere as nature unfolds in full bloom, allowing residents and visitors to relish the idyllic charm of the region without the distraction of gusty winds. Through the year, Sierre enjoys a generally mild wind experience, with peaks occurring in the late fall and winter, reinforcing the cozy, picturesque allure of this Swiss gem.
Weather in Sierre varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sierre, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between May and January, there are significant contrasts in temperature and conditions. May experiences a wider temperature range, with lows around -16°C (4°F) and highs reaching up to 22°C (72°F), resulting in an average of 6°C (43°F). The month also sees substantial precipitation of 160 mm (6.3 in) over about 20 days, with a humidity level of 80%. In contrast, January is much colder, with average temperatures hovering at -9°C (16°F) and a maximum of only 6°C (44°F), though it can drop as low as -27°C (-17°F). January's precipitation is slightly lower at 135 mm (5.3 in), but it occurs over fewer days—just 10—while humidity remains high at 91%. For more detailed information, see Sierre weather in January.
In comparison to February, May experiences a significant rise in temperatures, with averages around 6°C (43°F) compared to February's chilling average of -5°C (23°F). The minimum temperatures in May are noticeably milder at -16°C (4°F), while February can plunge to -23°C (-8°F), making it a much colder month. Additionally, May sees higher precipitation levels of 160 mm (6.3 in) over 20 days, indicating a wetter climate, whereas February has just 95 mm (3.8 in) falling over 11 days. Humidity remains relatively high in both months, with May at 80% and February slightly higher at 89%. For a detailed look at February weather, you can check Sierre weather in February.
When comparing the weather in March and May, it's clear that May tends to be much milder and more pleasant. In March, the temperatures can drop as low as -25°C (-12°F), with an average of -2°C (29°F), while May sees a minimum temperature of -16°C (4°F) and an average temperature of 6°C (43°F), reaching up to 22°C (72°F) at its peak. Additionally, while March experiences slightly less precipitation (122 mm) over 15 days, May is wetter with 160 mm falling across 20 days. Humidity levels are also high in both months, with March averaging 87% and May at 80%. Overall, May offers a more inviting climate compared to the chillier, damp conditions of March. For more details, you can check out Sierre weather in March.
In comparing the weather between April and May, we see a notable shift in temperature and precipitation levels. May generally experiences slightly warmer conditions with an average temperature of 6°C (43°F), while April has a lower average of 3°C (37°F). The maximum temperatures also rise from 17°C (63°F) in April to 22°C (72°F) in May, indicating more pleasant days as spring progresses. However, May is considerably wetter, with 160 mm (6.3 in) of precipitation over 20 days compared to April's 81 mm (3.2 in) over just 11 days. Despite this increase in rainfall, humidity levels only slightly decrease in May to 80%, down from 84% in April. For a closer look at the weather specifics in April, check out Sierre weather in April.
In May, temperatures range from a chilly minimum of -16°C (4°F) to a comfortable maximum of 22°C (72°F), with an average of 6°C (43°F). The month sees significant precipitation, totaling 160 mm (6.3 in) over 20 days, along with a relative humidity of 80%. Conversely, June brings milder conditions, with temperatures ranging from a minimum of -4°C (25°F) to a higher maximum of 27°C (81°F), and an average of 12°C (53°F). Rainfall decreases to 130 mm (5.1 in) over 16 days, while humidity slightly rises to 82%. For a more detailed look at June weather, you can visit Sierre weather in June.
May and July weather display significant differences in temperature and precipitation patterns. In May, temperatures range from a frigid minimum of -16°C (4°F) to a comfortable maximum of 22°C (72°F), with an average of 6°C (43°F). This month experiences substantial rainfall, accumulating 160 mm (6.3 in) over approximately 20 days, while humidity levels hover around 80%.
In contrast, July sees a milder range with minimum temperatures at 1°C (34°F), an average of 14°C (57°F), and maximums reaching 28°C (82°F). Precipitation in July is lower, totaling 121 mm (4.8 in) across 16 days, and humidity slightly increases to 82%. For more detailed insights, you can check Sierre weather in July.
May and August present quite different weather experiences. In May, temperatures typically range from a chilly minimum of -16°C (4°F) to a pleasant maximum of 22°C (72°F), with an average temperature of around 6°C (43°F). This month is characterized by high humidity at 80% and considerable precipitation, totaling 160 mm (6.3 in) over approximately 20 days. In contrast, August offers milder weather with temperatures ranging from a minimum of 1°C (34°F) to a warmer maximum of 26°C (80°F), resulting in an average of 13°C (56°F). The precipitation in August is lower, at 129 mm (5.1 in) over 16 days, and the humidity also slightly decreases to 77%. For more detailed insights on August weather, you can check Sierre weather in August.
In May, the weather showcases a broader temperature range, with minimums dipping to -16°C (4°F) and averaging 6°C (43°F), while maximums can reach up to 22°C (72°F). This month experiences significant precipitation, totaling 160 mm (6.3 in) over approximately 20 days, and humidity levels hover around 80%. In contrast, September presents a milder climate with minimums around -5°C (23°F) and an average temperature of 9°C (49°F), while still peaking at 22°C (72°F). Precipitation decreases significantly to 90 mm (3.6 in) across 12 days, with humidity remaining quite high at 81%. Overall, while both months can reach the same maximum temperatures, May is characterized by harsher lows and considerably more rainfall. For more detailed information, check out Sierre weather in September.
May and October present distinct weather patterns, both marked by cool temperatures and relatively high humidity. In May, temperatures can range from a brisk -16°C (4°F) to a pleasant maximum of 22°C (72°F), with an average of 6°C (43°F). The month sees considerable rainfall, with 160 mm (6.3 in) over about 20 days, resulting in a humidity level of 80%. Conversely, October offers a milder temperature range, from a minimum of -6°C (21°F) to a maximum of 18°C (64°F), with an average of 5°C (41°F). While it experiences slightly less precipitation at 135 mm (5.3 in) across 13 days, the humidity rises to 89%. For more insights on the specific weather conditions in October, you can refer to Sierre weather in October.
May and November present contrasting weather patterns, highlighting the transition from spring to late autumn. In May, temperatures range from a minimum of -16°C (4°F) to a maximum of 22°C (72°F), with an average of 6°C (43°F), while November sees a chillier range, with lows reaching -23°C (-10°F) and highs peaking at 14°C (58°F), averaging at -2°C (29°F). Precipitation is more prominent in May, totaling 160 mm (6.3 in) over approximately 20 days, compared to November's 98 mm (3.8 in) over 14 days. Additionally, with humidity levels at 80% in May and 89% in November, the latter month tends to feel more damp and brisk. For more detailed insights on November weather, you can refer to Sierre weather in November.
In May, the weather is significantly milder, with temperatures ranging from a chilly -16°C (4°F) at night to a pleasant 22°C (72°F) during the day, resulting in an average temperature of 6°C (43°F). The month experiences 160 mm (6.3 in) of precipitation over 20 days, with a humidity level of 80%. In contrast, December brings harsher conditions, with temperatures plummeting to a minimum of -30°C (-22°F) and only reaching a maximum of 7°C (45°F), averaging at -8°C (18°F). Precipitation is slightly higher at 188 mm (7.4 in) but occurs over fewer days, just 16, and the humidity rises to 91%. For more detailed information, you can check Sierre weather in December.
As May unfolds in Sierre, the weather transitions into a more inviting phase, marked by a noticeable uplift in temperatures when compared to the chillier months of winter. While nights may still be brisk, the days offer a welcome warmth, perfect for enjoying the stunning landscapes. However, it's also a time when the umbrella might come in handy, as May sees increased precipitation and humidity, giving the region its lush green appeal. In contrast to the dry spells of summer, this month serves as a bridge, showcasing Sierre's temperamental climate. For a more detailed understanding of what to expect throughout the year, visit Sierre Climate.