Last updated: August 27, 2025
In Saillon, Switzerland, May brings a delightful mix of mild temperatures and fresh alpine air. The maximum temperature can reach up to 24°C (75°F), while an average of 7°C (45°F) offers a comfortable backdrop for outdoor activities. However, the month can also surprise visitors with a chilling minimum temperature dropping to -14°C (7°F). Expect significant rainfall during this time, as 191 mm (7.5 in) of precipitation is spread across approximately 20 days, resulting in a humid atmosphere with averages around 80%. This combination of climate conditions shapes a vibrant and lush landscape, perfect for exploring the picturesque surroundings of the region.
In May, Saillon, Switzerland, emerges from the grips of winter, welcoming increasingly pleasant temperatures that hint at the arrival of summer. With a minimum of -14°C (7°F) and an average temperature rising to 7°C (45°F), the region begins to shed its icy cloak. The maximum temperature can reach a delightful 24°C (75°F), inviting outdoor activities and picturesque moments amidst the alpine scenery. This transition is adorned with vibrant blooms and lush greenery, making May a truly enchanting time in Saillon as it shakes off the cold and embraces the warmth, setting the stage for the inviting summer months ahead.
May in Saillon, Switzerland, is characterized by a significant increase in precipitation, with 191 mm (7.5 in) of rain accumulating over 20 days. This surge marks a stark contrast to the drier month of April, which recorded only 87 mm (3.4 in) over 12 days. The transition from spring to early summer brings a lush vibrancy to the region, as the rain not only nourishes the landscape but also contributes to Saillon's renowned vineyards. This month often sees the most rainy days in the year, indicating a shift toward wetter weather, setting the stage for the upcoming summer months where precipitation remains substantial yet slightly lower than in May, with June tallying 177 mm (7.0 in) over 18 days. As nature blossoms, the variability in spring rainfall ensures that the beautiful surroundings continue to thrive.
In Saillon, Switzerland, humidity levels exhibit a gradual decline as spring transitions into summer. Starting the year with a high of 91% in January, the moisture-rich atmosphere slowly eases to 80% in May, marking a noticeable shift as flowers bloom and the temperatures rise. Following this dip, humidity bounces back slightly to 82% in June and July, creating a comfortable environment for outdoor activities. The trend continues into late summer with a drop to 77% in August, before gradually increasing again as autumn approaches, reflecting the region's characteristic seasonal rhythm. This ebb and flow in humidity enriches Saillon's picturesque landscape, enhancing the beauty of its vineyards and charming countryside.
In May, Saillon experiences a significant rise in the UV Index, peaking at 9, which falls under the very high exposure category. This noteworthy increase from April's index of 8 indicates that sun exposure becomes considerably more intense, with a burn time of only 15 minutes. As summer approaches, the trend continues, with June and July reaching an even higher UV index of 10. This pattern highlights the importance of protection against harmful rays in the early summer months. Residents and visitors alike should be mindful of these changes and take necessary precautions to enjoy the beautiful Swiss sun safely. For more details, check out the Saillon UV Index.
UV Risk Categories
In May, Saillon, Switzerland, basks in an impressive 355 hours of sunshine, marking a delightful continuation of the upward trend established since April. This month mirrors the golden rays of April, but what sets May apart is the vibrant burst of spring flourishing across the picturesque landscapes. Following the gradual increase from January’s 172 hours, sunshine hours soar notably throughout the spring, reaching a peak with June's 390 hours just around the corner. This progressive journey from early winter's shadows to the bright embrace of summer reflects not only the allure of warmer days but also the growing anticipation for outdoor adventures in this charming Swiss locale. As the sun shines brighter, so does the potential for unforgettable experiences bathed in Saillon's scenic beauty.
In Saillon, Switzerland, May offers a 30% chance of sunny weather, which is a notable dip compared to the gradual increase seen from the winter months through to April, where the likelihood reaches 44%. As spring transitions into early summer, the weather patterns indicate a slight decline in sunshine, with June and July showing similar probabilities of 31% and 33%, respectively. This trend suggests that while May retains a reasonable chance for sun-filled days, it does not reach the peak enjoyed in the preceding months. Whether you're planning a getaway or a local adventure, keep this in mind when scheduling your activities during this beautiful time of year.
As the seasons transition in Saillon, Switzerland, daylight duration undergoes a fascinating transformation. In January, the sun graces the town with a modest 9 hours, gradually increasing to a welcoming 10 hours by February. By March, the days lengthen further to 11 hours, and April signals the onset of spring with a significant leap to 13 hours of daylight. The peak is reached in June and July, where residents enjoy a glorious 15 hours, basking in the warmth of long summer days. However, as August rolls in, the daylight begins to wane, decreasing to 14 hours, and the cycle continues with September bringing 12 hours, while the shorter days of October and November see daylight shrink back to 10 and 9 hours, respectively. Finally, December ushers in the year’s shortest days, with only 8 hours of daylight. This rhythmic fluctuation not only highlights the changing seasons but also paints a beautiful picture of life in Saillon throughout the year.
In May, Saillon, Switzerland, experiences a gentle breeze with an average wind speed of 1.2 m/s (approximately 3 mph), slightly below the peaks seen earlier in the year. The wind patterns remain consistent throughout the months, with other spring months like March and April recording similar low speeds. This tranquility is a hallmark of the region, as the winter chill gives way to milder temperatures, making outdoor activities more inviting. As summer approaches, the wind tends to ease further, hinting at a serene ambiance that is characteristic of Saillon in the warmer months. Overall, the subtle variations in wind speed serve to enrich the charming atmosphere of this picturesque Swiss village.
Weather in Saillon varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Saillon, 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 chilly minimum of -14°C (7°F) to a pleasant maximum of 24°C (75°F), with an average of 7°C (45°F). This month also sees significant precipitation at 191 mm (7.5 in) over 20 days, coupled with a humidity level of 80%. In contrast, January is much colder, with temperatures dipping to a minimum of -26°C (-15°F), averaging -8°C (18°F) and peaking at 8°C (46°F). Precipitation is lower in January at 140 mm (5.5 in) but occurs over just 10 days, and humidity is slightly higher at 91%. For more details, check out Saillon weather in January.
May and February exhibit notable differences in weather conditions. In May, temperatures range from a low of -14°C (7°F) to a high of 24°C (75°F), with an average temperature of 7°C (45°F). This month experiences substantial precipitation, totaling 191 mm (7.5 in) over about 20 days, and the humidity sits at 80%. In contrast, February is considerably colder, with temperatures ranging from -21°C (-5°F) to a maximum of 12°C (55°F) and an average of -4°C (26°F). February has less precipitation, measuring 108 mm (4.3 in) over 11 days and features higher humidity at 89%. For more detailed insights, you can view the information at Saillon weather in February.
In comparing the weather of May and March, it's clear that May experiences milder temperatures with a minimum of -14°C (7°F), an average of 7°C (45°F), and a maximum of 24°C (75°F), making it significantly warmer overall. In contrast, March is colder, with temperatures ranging from a minimum of -24°C (-11°F) to a maximum of 16°C (60°F), reflecting a stark difference as spring approaches. Additionally, May sees higher precipitation levels at 191 mm (7.5 in) over 20 days, compared to March's 135 mm (5.3 in) over 15 days. The humidity in both months is relatively high, with March at 87% and May slightly lower at 80%. For detailed insights on the conditions in March, you can visit Saillon weather in March.
In comparing the weather patterns of April and May, we observe notable differences in temperature, precipitation, and humidity. May generally offers a milder climate with average temperatures reaching 7°C (45°F), compared to April's cooler average of 4°C (39°F). While both months experience cold minima, May's minimum temperature of -14°C (7°F) is slightly more forgiving than April's -17°C (3°F). Precipitation in May is significantly higher, with 191 mm (7.5 in) spread over 20 days, in contrast to April’s 87 mm (3.4 in) across 12 days. Humidity levels are fairly similar, with April at 84% and May slightly lower at 80%. For more detailed insights, you can check Saillon weather in April.
May and June weather show a notable transition as spring gives way to early summer. In May, temperatures range from a chilly -14°C (7°F) at night to a pleasant 24°C (75°F) during the day, averaging around 7°C (45°F). The month experiences significant rainfall, with 191 mm (7.5 in) of precipitation spread over 20 days and a humidity level of 80%.
In contrast, June presents more temperate conditions, with minimum temperatures rising to -3°C (27°F) and daily highs reaching 28°C (83°F), resulting in an average temperature of 13°C (55°F). Although the amount of rainfall decreases slightly to 177 mm (7.0 in) over 18 days, humidity remains high at 82%. These changes reflect a gradual warming and drying trend as summer approaches. For more detailed information, you can check Saillon weather in June.
May and July present distinct weather patterns, with May experiencing a broader temperature range. In May, temperatures can drop as low as -14°C (7°F) and reach up to 24°C (75°F), averaging around 7°C (45°F). This month also sees significant rainfall, with 191 mm (7.5 in) of precipitation over 20 days and an 80% humidity level. In contrast, July's temperatures are milder, ranging from a minimum of 1°C (35°F) to a maximum of 28°C (82°F) and averaging 14°C (58°F). July has slightly less precipitation at 182 mm (7.2 in) across 17 days, with humidity remaining relatively high at 82%. For more specific details on July's climate, you can check Saillon weather in July.
May weather presents a varied temperature range with a minimum of -14°C (7°F) and a maximum of 24°C (75°F), leading to an average temperature of around 7°C (45°F). It is also marked by significant precipitation, totaling 191 mm (7.5 in) over 20 days, and high humidity levels at 80%. In contrast, August enjoys a milder climate, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 27°C (80°F) and an average of 14°C (57°F). Precipitation is slightly lower at 173 mm (6.8 in) across 17 days, and humidity remains relatively comfortable at 77%. For more information about August weather, you can explore Saillon weather in August.
In comparing the weather of May and September, we see notable differences and similarities. May experiences a wider temperature range, with minimums dipping to -14°C (7°F) and maximums reaching up to 24°C (75°F), while September maintains a milder temperature spectrum, with lows of -6°C (22°F) and highs peaking at 23°C (73°F). Precipitation is more significant in May, totaling 191 mm (7.5 in) over 20 days, compared to September's 113 mm (4.5 in) over 15 days, indicating a wetter start to the summer season. Both months feature high humidity, with May at 80% and September slightly higher at 81%. For more detailed insights on September weather, you can check Saillon weather in September.
May and October showcase distinctly different weather patterns, which can greatly influence outdoor plans. In May, temperatures range from a chilly -14°C (7°F) to a pleasant maximum of 24°C (75°F), with an average of 7°C (45°F). This month also sees significant precipitation, with 191 mm (7.5 in) falling over about 20 days, resulting in a humidity level of around 80%. In contrast, October brings cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 18°C (65°F), averaging at 6°C (43°F). The month is drier than May, with 131 mm (5.2 in) of rain across 13 days and a slightly higher humidity of 89%. For more insights into October weather in this region, you can visit Saillon weather in October.
May and November present quite distinct weather patterns, reflecting the transition from spring to autumn. In May, temperatures range from a chilly minimum of -14°C (7°F) to a pleasant maximum of 24°C (75°F), with an average of 7°C (45°F). This month experiences considerable precipitation at 191 mm (7.5 in) over approximately 20 days, accompanied by a humidity level of 80%.
In contrast, November sees colder temperatures, with a minimum of -20°C (-4°F) and a maximum of 16°C (61°F), resulting in a cooler average of -1°C (31°F). The precipitation is lower at 101 mm (4.0 in) over 13 days, but the humidity increases slightly to 89%. For more detailed information, you can check Saillon weather in November.
May and December present stark contrasts in weather conditions. In May, temperatures range from a chilly minimum of -14°C (7°F) to a pleasant maximum of 24°C (75°F), with an average of 7°C (45°F). This month experiences significant precipitation, totaling 191 mm (7.5 in) over about 20 days, and humidity levels averaging 80%. In comparison, December brings colder temperatures, with a minimum of -29°C (-21°F) and a maximum of 8°C (46°F), averaging -6°C (21°F). Precipitation levels are slightly higher at 213 mm (8.4 in), occurring over 16 days, and humidity rises to 91%. For more details on December weather, visit Saillon weather in December.
As May unfolds in Saillon, the weather begins to transition from the chill of winter to the warmth of summer, creating a unique blend of conditions. With maximum temperatures reaching a pleasant 24°C (75°F) and average lows at 7°C (45°F), this month offers a significant contrast to the colder winter months. Still, chillier evenings remind us of the lingering frost, reflected in the occasional -14°C (7°F) lows. May’s 191 mm (7.5 in) of precipitation over 20 days contributes to the lush landscape, while high humidity levels of around 80% enhance the vibrant colors of blossoming flora. This combination of warmth and moisture makes May one of the most beautiful times to visit Saillon. For a deeper dive into the climatic patterns, check out Saillon Climate.