Last updated: August 27, 2025
In May, Grindelwald, Switzerland, presents a captivating yet unpredictable climate. With temperatures ranging from a maximum of 16°C (62°F) to a minimum of -11°C (12°F), visitors can expect a blend of mild days and chilly nights, averaging around 3°C (37°F). Rainfall is a notable feature of the month, accumulating to 165 mm (6.5 in) across approximately 21 days, creating lush landscapes perfect for exploration. The humidity level, sitting at 80%, adds a refreshing ambiance to this stunning alpine destination, where beauty and variability coexist in harmony.
As spring unfolds in Grindelwald, Switzerland, May brings a noticeable shift in temperatures, marking a transition from the chilling grasp of winter to the promising warmth of summer. With minimums around -11°C (12°F) and averages climbing to 3°C (37°F), the month offers a refreshing respite from the deep freezes of earlier months. The maximum temperature can soar to 16°C (62°F), allowing for more outdoor activities amidst lush landscapes. This gentle warming trend is a clear indication that the snowy peaks will soon give way to vibrant greenery, making May a delightful time for travelers seeking to experience the serene beauty of the Swiss Alps.
In May, Grindelwald experiences a significant uptick in rainfall, tallying 165 mm (6.5 in) over 21 days, making it one of the wetter months of the year. This trend of increased precipitation follows the milder, drier spring months, such as April, which recorded only 102 mm (4.0 in). As the spring blossoms, so does the rain, hinting at the approaching summer. With May's rainfall rivalling that of January and June, it’s clear that the region is transitioning into a lush, vibrant season, setting the stage for the verdant landscapes that attract visitors from around the world. The consistent precipitation throughout the month underscores the importance of this period in nurturing the stunning alpine flora that defines Grindelwald.
As spring unfolds in Grindelwald, May brings a notable shift in humidity, dipping to 80%, the lowest level since the cozy winter months. This gradual decline from January's cozy 92% reflects the region's transition away from the heavier, moisture-laden atmosphere. As the temperatures rise and the days grow longer, this decrease in humidity paves the way for more comfortable outdoor adventures. Interestingly, this trend continues into the summer months, with June and July hovering slightly higher at 82% and 83%, respectively, maintaining a pleasant balance that allows visitors to fully embrace the breathtaking landscapes without the oppressive dampness. Overall, May represents a refreshing respite, hinting at the approaching warmth while still holding onto a touch of spring's lingering embrace.
As spring transitions into summer, the UV Index in Grindelwald, Switzerland continues to climb, peaking in May at a notable 10. This level categorizes it as very high, meaning sun exposure should be approached with caution, as the recommended burn time is just 15 minutes. The trend is clear: following a moderate index in the earlier months, the UV levels escalate dramatically, highlighting the importance of sun protection as summer approaches. By June, the index reaches an extreme level of 11, further emphasizing the need for vigilance. As you enjoy the stunning alpine scenery, don’t forget to check the UV levels and stay safe under the sun. For more information, visit Grindelwald UV Index.
UV Risk Categories
As spring unfolds in Grindelwald, Switzerland, May shines brightly with an impressive 365 hours of sunshine, marking it as the sunniest month of the year. This surge in daylight is a continuation of a steady increase that begins in January with a mere 181 hours of sunshine, gradually climbing each month. By April, the sun starts to make its presence felt, delivering 353 hours, paving the way for May's brilliance. The trend of abundant sunlight not only enhances the beauty of the majestic Alps but also invites outdoor enthusiasts to embrace hiking, biking, and sightseeing. As the summer months approach, June and July experience even more sunshine, peaking at 389 and 417 hours respectively. Thus, May serves as a delightful prelude to the vibrant summer, showcasing Grindelwald at its sun-kissed best.
In Grindelwald, Switzerland, the likelihood of enjoying sunny weather in May is somewhat modest, with only a 23% chance of sunshine gracing the picturesque village. This figure aligns with the average for the preceding months of March and April, both at 36%, but noticeably lower than the burgeoning days of summer that follow, where sunny probabilities stabilize around 23% for June and July. As the year transitions from the frosty depths of winter to the gentler warmth of late spring, May retains a bit of unpredictability in its weather patterns. Despite the overall decrease in sunny prospects compared to early spring, visitors can still revel in the beauty of the Swiss Alps, even if sunshine is not guaranteed.
In Grindelwald, Switzerland, the delightful progression of daylight hours throughout the year showcases a beautiful rhythm of change. Beginning with a modest 9 hours in January, daylight gradually increases, highlighting the shift from winter to spring. February brings 10 hours, while March sees an uplifting 11 hours. By April, as nature awakens, daylight reaches 13 hours, paving the way for May, when it peaks at a vibrant 15 hours. This glorious abundance of light continues through June and July, providing long, sun-drenched days perfect for exploring the stunning alpine scenery. As summer gives way to autumn, daylight begins its gradual retreat, dropping to 14 hours in August and down to 12 hours in September. By the time November rolls around, the daylight dwindles back to 9 hours, and winter descends with only 8 hours in December. This cyclical ebb and flow of daylight beautifully illustrates the seasonal transformations that define Grindelwald's enchanting landscape.
In May, Grindelwald enjoys a refreshing and gentle breeze, with average wind speeds holding steady at 1.3 m/s (3 mph). This mild wind velocity is typical for the spring season, reflecting a trend of consistent low winds that prevails from April through June. Uninterrupted by the harsher gusts of winter, May offers an ideal climate for outdoor adventures amidst the breathtaking Alpine scenery, encouraging visitors to partake in hiking, biking, and leisurely strolls. As summer approaches, the winds begin to taper off slightly, yet the ambiance remains pleasantly serene, making May a perfect time to embrace the natural beauty of this Swiss gem.
Weather in Grindelwald varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Grindelwald, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present starkly contrasting weather conditions. In May, temperatures range from a chilly -11°C (12°F) at night to a mild 16°C (62°F) during the day, with an average of 3°C (37°F). The month sees a significant amount of precipitation, totaling 165 mm (6.5 in) over 21 days, accompanied by a humidity level of 80%. In contrast, January is much colder, with temperatures dipping to a minimum of -24°C (-11°F), averaging -10°C (15°F), and peaking at just 5°C (41°F). Although January experiences slightly more precipitation at 168 mm (6.6 in), it does so over fewer days, just 13, along with a higher humidity of 92%. For more details, you can explore Grindelwald weather in January.
May and February present contrasting weather profiles. In May, temperatures range from a chilly minimum of -11°C (12°F) to a more pleasant maximum of 16°C (62°F), with an average of 3°C (37°F). The month receives about 165 mm (6.5 in) of precipitation over 21 days, coupled with a humidity level of 80%. In contrast, February is much colder, with temperatures dipping as low as -25°C (-12°F) and only reaching a maximum of 7°C (45°F), averaging -7°C (20°F). Despite having less precipitation at 114 mm (4.5 in), it occurs over 12 days, and the humidity is slightly higher at 89%. For more detailed information on February weather, you can check out Grindelwald weather in February.
Comparing the weather between March and May reveals a notable transition as spring progresses. In March, temperatures are significantly colder, with a minimum of -26°C (-15°F) and an average of -5°C (24°F), while May enjoys milder conditions, starting with a minimum of -11°C (12°F) and an average of 3°C (37°F). Precipitation is slightly higher in May at 165 mm (6.5 in), occurring over 21 days, compared to March's 147 mm (5.8 in) over 16 days. Humidity levels are also elevated in March at 87%, compared to 80% in May, indicating a more comfortable feel as the spring climate sets in. For more details on March weather specifics, check Grindelwald weather in March.
In comparing the weather of May and April, May generally presents a milder outlook with average temperatures rising to 3°C (37°F), while April struggles with colder conditions, averaging at -1°C (30°F). The minimum temperatures are also notably higher in May, with a low of -11°C (12°F) compared to April's chilling -17°C (1°F). Additionally, May sees an increase in precipitation, totaling 165 mm (6.5 in) over 21 days, whereas April records 102 mm (4.0 in) across 13 days, reflecting a wetter climate as spring progresses. Despite experiencing slightly lower humidity in May at 80% compared to 84% in April, both months exhibit a significant amount of moisture typical of the transition into the warmer season. For a more detailed look into April's conditions, you can visit Grindelwald weather in April.
May and June present a notable shift in weather conditions. In May, temperatures range from a chilly -11°C (12°F) at night to a pleasant 16°C (62°F) during the day, with an average temperature of 3°C (37°F). This month also sees considerable precipitation, totaling 165 mm (6.5 in) across 21 days, accompanied by high humidity levels of 80%. In contrast, June starts to warm up, with nighttime lows of -4°C (25°F) and daytime highs reaching 25°C (77°F), averaging out at 9°C (48°F). Although June experiences a similar amount of precipitation at 168 mm (6.6 in) over 20 days and slightly higher humidity at 82%, the overall transition to milder temperatures signals the arrival of summer. For more details, you can check Grindelwald weather in June.
May and July exhibit notable differences in weather patterns. In May, temperatures range from a chilly minimum of -11°C (12°F) to a mild maximum of 16°C (62°F), with an average of just 3°C (37°F). This month experiences significant precipitation, totaling 165 mm (6.5 in) over 21 days, coupled with high humidity levels at 80%. In contrast, July offers a much warmer atmosphere with temperatures starting at 0°C (32°F) and peaking at 24°C (75°F), with an average of 10°C (51°F). Rainfall increases slightly to 197 mm (7.8 in) over 24 days, while humidity also rises to 83%. These factors contribute to a more vibrant and lively summer climate. For more details, you can check Grindelwald weather in July.
When comparing the weather in May and August, it's evident that August generally offers milder temperatures. In May, the temperatures range from a chilly -11°C (12°F) at night to a maximum of 16°C (62°F) during the day, with an average of just 3°C (37°F). Although May sees significant precipitation—165 mm (6.5 in) over 21 days—humidity remains high at 80%. In contrast, August experiences warmer conditions, with temperatures ranging from a minimum of -1°C (31°F) to a pleasant maximum of 21°C (70°F), averaging around 10°C (50°F). While precipitation slightly increases to 195 mm (7.7 in) over the same number of days, the humidity remains consistent at 80%. For more details on August's weather, check out Grindelwald weather in August.
In May, the weather is characterized by cooler temperatures, with a minimum of -11°C (12°F) and an average of 3°C (37°F), while highs can reach up to 16°C (62°F). This month also sees significant precipitation, averaging 165 mm (6.5 in) over 21 days, accompanied by a relatively high humidity level of 80%. In contrast, September brings slightly milder conditions with temperatures ranging from a minimum of -8°C (17°F) to an average of 6°C (44°F) and a maximum of 18°C (65°F). Precipitation is also lower in September, totaling 122 mm (4.8 in) over 16 days, and humidity increases slightly to 83%. For more detailed insights on September weather, you can check Grindelwald weather in September.
In comparing the weather of May and October, both months experience similar minimum temperatures, dropping to -11°C (12°F). However, May tends to be slightly warmer overall, with an average of 3°C (37°F) and a maximum of 16°C (62°F), while October has an average of 2°C (35°F) and a maximum of 14°C (57°F). Precipitation is more frequent in May, with rain on 21 days accumulating to 165 mm (6.5 in), compared to October, which sees 181 mm (7.1 in) over 13 days. Additionally, October exhibits higher humidity at 90%, slightly elevated from May's 80%. For a detailed look at October weather patterns, visit Grindelwald weather in October.
May and November present strikingly different weather patterns. In May, temperatures range from a chilly -11°C (12°F) at night to a mild 16°C (62°F) during the day, with an average of 3°C (37°F). The month is characterized by significant rainfall, with 165 mm (6.5 in) of precipitation spread over 21 days and an overall humidity of 80%. In contrast, November is colder, with temperatures dipping as low as -21°C (-5°F) at night and peaking at 10°C (50°F) during the day, resulting in an average temperature of -4°C (25°F). While November has less precipitation at 117 mm (4.6 in) over 15 days, humidity is slightly higher at 88%. For a closer look at the November climate, you can explore Grindelwald weather in November.
May and December present distinct contrasts in weather. In May, temperatures range from a minimum of -11°C (12°F) to a maximum of 16°C (62°F), with an average of 3°C (37°F). The month experiences notable precipitation of 165 mm (6.5 in) over approximately 21 days, combined with a humidity level of 80%. In contrast, December is characterized by much colder temperatures, with a low of -24°C (-11°F), an average of -8°C (18°F), and a maximum of only 4°C (39°F). With 229 mm (9.0 in) of precipitation spread across 19 days and a higher humidity of 90%, December's weather is more severe. For more detailed insights, you can check Grindelwald weather in December.
As May unfolds in Grindelwald, the weather begins to transition from the chill of winter towards the milder embrace of spring. With its average temperature hovering around 3°C, visitors can expect a refreshing yet brisk atmosphere, markedly different from the harsher conditions of the preceding months. Precipitation remains significant, with many days experiencing light rain, which nourishes the vibrant flora awakening from a long winter slumber. This high level of humidity, typically around 80%, adds to the fresh, crisp feel of the air, creating a unique blend of moisture that can sometimes lead to fleeting fog. For those planning a trip, the changing climate offers a captivating experience that showcases Grindelwald's stunning beauty. To learn more about the area's weather patterns, check out Grindelwald Climate.