May Weather in Schwyz, Switzerland

Last updated: August 27, 2025

In May, Schwyz, Switzerland welcomes a blend of springtime warmth and scenic beauty, with temperatures ranging from a maximum of 25°C (77°F) to a minimum of -9°C (15°F). The average temperature hovers around 8°C (48°F), offering a pleasant climate for outdoor activities. However, be prepared for frequent rain, as the region experiences 190 mm (7.5 in) of precipitation over 22 days, contributing to a humidity level of 80%. This mix of conditions creates a vibrant environment, perfect for appreciating the lush landscapes and flourishing flora that characterize this idyllic Swiss locale.

May Temperature in Schwyz

As May unfolds in Schwyz, Switzerland, the chill of winter gradually gives way to a pleasant warmth, making it an ideal time to appreciate the stunning landscapes. Average temperatures rise to a comfortable 8°C (48°F), with daytime highs reaching a delightful 25°C (77°F), signaling the approach of summer. The nights can still be brisk, dipping to a chilly -9°C (15°F), but overall, the month offers a noticeable warmth compared to the preceding months. May marks a transition filled with blooming flowers and budding trees, inviting outdoor activities against the backdrop of Switzerland's breathtaking scenery. With temperatures escalating steadily from April's cooler nights, this month is a picturesque prelude to summer’s full embrace.

May Weather in Schwyz: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Schwyz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Schwyz, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec252934414757595952453528
Data source: Temperature data for Schwyz generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Schwyz

May in Schwyz, Switzerland typically showcases a remarkable surge in precipitation, with an average of 190 mm (7.5 in)—making it one of the wettest months of the year. The increase in rainfall is accompanied by a notable rise in the number of rainy days, with about 22 days experiencing precipitation. This trend marks a significant uptick from April's 14 days of rain, indicating a transition into the lush, green landscapes that characterize the Swiss spring. As the month progresses, the region prepares for an even wetter June, with rain continuing to play a vital role in nurturing the thriving flora and fauna of this stunning locale.

May Precipitation Trends in Schwyz

The chart displays monthly precipitation patterns in Schwyz, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Schwyz, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec154108136114190229208231168162102190
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Schwyz

May in Schwyz, Switzerland, welcomes a comfortable dip in humidity, resting at 80%. This marks a decline from the higher levels seen in the early months of the year, where January's humidity reached a notable 92%. As spring unfolds, residents and visitors alike can enjoy a refreshing environment, with humidity gradually easing from the more intense moisture of winter. Following May, the humidity slightly rises again in June, settling at 82%, while the summer months maintain levels that hover around the 80-83% range. This trend indicates a seasonal rhythm, where the air becomes less saturated as warmer temperatures arrive, providing a pleasant balance that many look forward to as spring transitions into summer.

May Average Humidity in Schwyz

This chart illustrates the average monthly humidity levels in Schwyz, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Schwyz is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Schwyz

As spring transitions into summer in Schwyz, Switzerland, the UV Index makes a significant leap in May, reaching a noteworthy 8. This corresponds to a very high exposure category, reducing the safe burn time to just 15 minutes. The increase follows a steady rise from an Index of 2 in January to 7 in April, highlighting a trend towards more intense sun exposure as the year progresses. It’s essential to be mindful of sun safety during this period, as skin can burn quickly under such UV levels. For more information on the UV Index in Schwyz throughout the year, visit Schwyz UV Index.

Maximum UV Index Levels in Schwyz for May

The chart shows the monthly maximum UV Index (UVI) for Schwyz in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Schwyz typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810986432
Data source: Schwyz May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Schwyz

As May unfolds in Schwyz, Switzerland, the region revels in a remarkable 365 hours of sunshine, strikingly marking the peak of luminosity for the year. Following a gradual ascent from the 163 hours in January to 355 hours in April, May not only reaches the pinnacle of daylight but also sets the stage for the sunniest months ahead. The upward trend continues into June and July, with sunny hours escalating even further, highlighting a vibrant and lively atmosphere. This pattern of increasing sunshine provides a delightful backdrop, enticing both locals and visitors to embrace the beauty of Schwyz during this enchanting time of year.

Monthly Sunshine Duration in Schwyz: May Highlighted

The May sunshine duration represents the total number of hours Schwyz experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec163h227h299h355h365h382h410h377h314h275h211h183h
Data source: Schwyz May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Schwyz During May

In Schwyz, Switzerland, the likelihood of sunny weather in May reflects a notable dip in sunshine, with just a 29% chance of clear skies. This marks a decrease from the preceding months of March and April, which hover around the 40% mark. Interestingly, May's sunshine probability aligns with June's, suggesting that the transition into summer might not always guarantee bright days. As the region moves from the chill of spring, one can expect a mix of sun and clouds, emphasizing the variable nature of Schwyz's May weather.

Percentage of Sunny Days in May in Schwyz

The chart illustrates the percentage of sunny days in Schwyz throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Schwyz experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%38%41%40%30%29%30%30%36%40%31%37%
Data source: Schwyz May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Schwyz in May

As spring transitions into summer, Schwyz, Switzerland, enjoys a significant increase in daylight, culminating in May with an impressive 15 hours of sunshine. This month marks a clear turning point after the gradual ascent from 8 hours of daylight in January, reflecting the region's shift towards longer, brighter days. Following the earlier months, where daylight steadily increases from 10 hours in February to 13 hours in April, May sets the stage for peak sunlight, matched only by June and July. As daylight begins to taper off in August, with 14 hours, the area's vibrant nature thrives in these longer days, creating a picturesque setting perfect for outdoor activities and exploring the enchanting landscapes of the Switzerland Alps. The ebb and flow of daylight throughout the year not only marks the changing seasons but also enhances the allure of Schwyz.

Average Daylight Hours in Schwyz for May

The chart illustrates the variation in daylight duration in Schwyz throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 58m10h 17m11h 56m13h 37m15h 4m15h 48m15h 25m14h 7m12h 30m10h 49m9h 20m8h 34m
Data source: Schwyz daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Schwyz

In Schwyz, Switzerland, the month of May brings a gentle average wind speed of 1.5 m/s (3 mph), maintaining a calm and serene atmosphere that is characteristic throughout much of the year. Notably, the wind speeds in May reflect a consistency seen from February through October, where the variations hover around 1.3 to 1.7 m/s. This steadiness, particularly when compared to the slightly higher speeds in February, suggests a transitional ease as winter fades and spring flourishes, providing perfect conditions for leisurely outdoor activities. As the year progresses, the winds settle, with July to September showing a consistent 1.3 m/s, creating a tranquil environment ideal for enjoying the picturesque landscape of Schwyz.

Average May Wind Speed in Schwyz

The chart displays monthly wind speed patterns in Schwyz, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.71.31.41.5 m/s1.31.31.31.31.51.31.5
Data source: Schwyz May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Schwyz Compares to Other Months

Weather in Schwyz varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Schwyz, focusing on differences in temperature, rainfall, humidity, and UV levels.

May's weather is marked by a significant warming trend compared to January. With temperatures ranging from a low of -9°C (15°F) to a pleasant high of 25°C (77°F), May offers an average temperature of 8°C (48°F). In contrast, January experiences much colder conditions, with temperatures plummeting to a minimum of -18°C (-1°F) and peaking at just 9°C (49°F), resulting in an average temperature of -4°C (26°F). Additionally, while May sees approximately 190 mm (7.5 in) of precipitation over 22 days, January is slightly drier with 154 mm (6.1 in) of precipitation across 12 days, though it comes with higher humidity levels at 92%. For a detailed look at January's weather patterns, visit Schwyz weather in January.

When comparing the weather in May and February, the differences are quite pronounced. May experiences a much wider temperature range, with minimums of -9°C (15°F) and maximums reaching 25°C (77°F), while February is colder, ranging from -21°C (-5°F) to a maximum of 12°C (54°F). In terms of precipitation, May sees more rainfall with 190 mm (7.5 in) over 22 days, compared to February's 108 mm (4.2 in) across 12 days. Furthermore, the humidity in February is slightly higher at 89%, while May has a humidity level of 80%. For a more detailed look at February weather, you can refer to Schwyz weather in February.

When comparing the weather in May and March, the differences are quite pronounced. May enjoys a significantly warmer temperature range, with minimums around -9°C (15°F) and maximums reaching up to 25°C (77°F). In contrast, March is much colder, with minimum temperatures dropping to -24°C (-10°F) and maximums only peaking at 16°C (62°F). Additionally, May experiences higher average temperatures at 8°C (48°F) compared to March's average of just 1°C (34°F). Precipitation is also greater in May, with 190 mm (7.5 in) over 22 days versus March's 136 mm (5.3 in) over 17 days. Interestingly, March has a slightly higher humidity level at 87% compared to May's 80%. For a detailed look at the weather patterns, you can refer to Schwyz weather in March.

In comparing the weather patterns of April and May, May generally offers milder temperatures, with a minimum of -9°C (15°F) and an average of 8°C (48°F), while April can be chillier, with a minimum of -16°C (4°F) and an average of 5°C (41°F). The maximum temperature in May reaches up to 25°C (77°F), providing warmer days than April's peak of 20°C (68°F). However, May experiences significantly higher precipitation at 190 mm (7.5 in) over 22 days, compared to April's 114 mm (4.5 in) over just 14 days. Humidity levels are relatively high in both months, though slightly higher in April at 84% compared to May's 80%. For a more detailed look at April's weather, you can visit Schwyz weather in April.

In comparing the weather between May and June, we see a notable increase in temperatures. May boasts a minimum of -9°C (15°F) and an average of 8°C (48°F), while June begins with a higher minimum of 1°C (35°F) and an average temperature of 14°C (57°F). Additionally, June experiences warmer maximum temperatures, reaching up to 29°C (85°F) compared to May’s high of 25°C (77°F). While precipitation in June is slightly higher at 229 mm (9.0 in) over 20 days, May's total is 190 mm (7.5 in) spread across 22 days. Despite the increase in rainfall, humidity remains relatively consistent, with May at 80% and June at 82%. For more detailed information, you can check Schwyz weather in June.

In comparing the weather between May and July, we observe distinct differences in temperature and precipitation. May features a broader temperature range, with minimums dropping to -9°C (15°F) and maximums reaching 25°C (77°F), resulting in an average temperature of 8°C (48°F). In contrast, July's warmer climate sees minimum temperatures of 5°C (42°F) and maximums peaking at 29°C (84°F), leading to a more comfortable average of 15°C (59°F). Both months experience significant rainfall, with May receiving 190 mm (7.5 in) over 22 days and July slightly wetter at 208 mm (8.2 in) across 19 days. The humidity levels are similar, with May at 80% and July at 83%. For more specific details about July weather, check out Schwyz weather in July.

In May, the weather is quite variable, with temperatures ranging from a chilly -9°C (15°F) at the minimum to a pleasant 25°C (77°F) at the maximum, averaging around 8°C (48°F). The month experiences significant precipitation, totaling 190 mm (7.5 in) over 22 days, with humidity levels lingering at 80%.

In contrast, August offers slightly warmer conditions, with minimum temperatures of 5°C (41°F) and maximums reaching 27°C (80°F), while the average is around 15°C (59°F). However, it also sees an increase in precipitation, amounting to 231 mm (9.1 in) over 19 days, with humidity remaining consistent at 80%.

For more detailed information, you can check the Schwyz weather in August.

May and September present distinct weather patterns, with May characterized by a wider temperature range, displaying minimums plunging to -9°C (15°F) and maximums reaching up to 25°C (77°F). Despite its warmer peaks, May experiences higher precipitation, averaging 190 mm (7.5 in) over 22 rainy days and humidity hovering around 80%. In contrast, September shows a milder temperature profile, with a minimum of -1°C (30°F) and a maximum of 23°C (74°F). The month sees slightly less rainfall at 168 mm (6.6 in), spread over 16 days, and a modest increase in humidity at 83%. For further details, you can check Schwyz weather in September.

May presents a more varied temperature range, with minimums dipping as low as -9°C (15°F) and maximums reaching up to 25°C (77°F), leading to an average of 8°C (48°F). In contrast, October features milder temperatures, with a minimum of -3°C (26°F), an average of 7°C (45°F), and a maximum of 18°C (65°F). While May experiences greater precipitation at 190 mm (7.5 in) over 22 days, October sees slightly less at 162 mm (6.4 in) over 14 days, along with increased humidity levels of 90%. For more details, you can check Schwyz weather in October.

May and November present distinct contrasts in weather conditions. In May, temperatures range from a chilly -9°C (15°F) at their lowest to a pleasant 25°C (77°F) at their peak, with an average of 8°C (48°F). The month experiences considerable precipitation, totaling 190 mm (7.5 in) over 22 days, and humidity levels hover around 80%. In contrast, November is cooler, with temperatures dipping as low as -11°C (12°F) and only reaching a maximum of 17°C (62°F), resulting in an average of just 2°C (35°F). Precipitation decreases to 102 mm (4.0 in) over 12 days, while humidity rises slightly to 88%. For a detailed look at November weather, visit Schwyz weather in November.

May and December offer contrasting weather conditions. In May, temperatures range from a chilly minimum of -9°C (15°F) to a pleasant maximum of 25°C (77°F), with an average temperature of 8°C (48°F). The month receives a total of 190 mm (7.5 in) of precipitation over 22 days, coupled with a humidity level of 80%. In contrast, December experiences colder temperatures, with lows dipping to -15°C (6°F) and highs reaching only 8°C (47°F), resulting in an average of -2°C (29°F). Although the total precipitation remains similar at 190 mm (7.5 in), it occurs over slightly fewer days, 19 in total, and with a higher humidity of 90%. For more specifics on winter conditions, you can check Schwyz weather in December.

Compare Schwyz's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Schwyz

As May arrives in Schwyz, the weather begins to awaken from its winter slumber, presenting a striking contrast to the chill of previous months. With temperatures rising significantly, this month offers a refreshing blend of cool mornings and pleasantly warm afternoons, inviting outdoor activities amidst the stunning alpine backdrop. However, May also brings its fair share of rain, with numerous wet days contributing to the lush scenery. The air is notably humid, creating a vibrant atmosphere that distinguishes it from the drier spells of summer. For those interested in a deeper understanding of the fluctuations throughout the year, explore more about the region's climate at Schwyz Climate.