May Weather in Locarno, Switzerland

Last updated: August 27, 2025

In May, Locarno, Switzerland experiences a dynamic climate, with temperatures ranging from a cool minimum of -7°C (21°F) to a warm maximum of 25°C (77°F), yielding an average of 11°C (51°F). Rainfall is quite prevalent during this month, accumulating to 176 mm (6.9 in) over 19 days, which contributes to the region's lush greenery. With an average humidity level of 80%, visitors can expect a refreshing yet occasionally damp environment. This blend of conditions makes May an intriguing time to explore Locarno's stunning landscapes and vibrant ambiance.

May Temperature in Locarno

May in Locarno, Switzerland, marks a delightful transition into warmer weather as temperatures begin to rise significantly. With minimum temperatures hovering around -7°C (21°F) and reaching an average of 11°C (51°F), the month brings a refreshing warmth, inviting locals and tourists alike to enjoy the burgeoning beauty of spring. Max temperatures can reach up to 25°C (77°F), making it a perfect time for outdoor activities and exploration of the stunning scenery that surrounds the area. As the chill of winter fades, May stands out as a promising prelude to the summer months, setting the stage for an increasing brightness that continues into June and beyond. This shift not only enhances the charm of Locarno but also showcases the region's breathtaking landscapes, which are best appreciated in the milder climate.

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

The chart illustrates May temperature patterns in Locarno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Locarno, 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).
JanFebMarAprMayJunJulAugSepOctNovDec293337445160626255473731
Data source: Temperature data for Locarno 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 Locarno

May marks a notable peak in precipitation for Locarno, Switzerland, with 176 mm (6.9 in) of rain falling over 19 days. This significant amount not only represents the highest monthly total of the year but also highlights a gradual upward trend in rainfall as spring transitions to summer. Following April's 136 mm (5.3 in), May's increase signals a shift towards wetter conditions typical of the warmer months. The frequency of rainy days in May further emphasizes this shift, as it surpasses the preceding months, suggesting that the region experiences a robust climax of spring showers before the summer heat sets in. Overall, May serves as a rich tapestry of fluctuating weather, nurturing the lush landscapes that define this picturesque locale.

May Precipitation Trends in Locarno

The chart displays monthly precipitation patterns in Locarno, 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 Locarno, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7156106136176159124169136242168119
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Locarno

In Locarno, Switzerland, May marks a notable shift in humidity as it gradually decreases to 80%, providing a refreshing reprieve from the winter months. Following the wetter conditions experienced in January through April—with humidity peaking at a striking 92% in January—May introduces a trend towards more comfortable levels. This decline continues into the summer, with humidity hovering around 82% in June and 83% in July. Interestingly, August also maintains a humidity of 80%, suggesting a consistent balance as the warm season unfolds. However, as autumn approaches, the trend reverses, with humidity values climbing back to higher levels, reaching 90% by October. Thus, May serves as a pivotal point in Locarno's yearly cycle, where humidity begins to stabilize, catering to both locals and visitors seeking to enjoy the blossoming beauty of spring.

May Average Humidity in Locarno

This chart illustrates the average monthly humidity levels in Locarno, 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 Locarno 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 Locarno

As May arrives in Locarno, Switzerland, the UV Index escalates to 9, categorizing the exposure as very high. This increase continues a notable trend from earlier months, where the UV Index rapidly climbs from a manageable 2 in January to a striking 8 in April, demonstrating the approach of summer. In May, residents and visitors alike should be aware that the risk of harm from unprotected sun exposure is significant, with a burn time of just 15 minutes. This pattern of high UV levels persists into June and July, making it crucial to adopt sun safety measures. To learn more about the UV Index throughout the year, visit Locarno UV Index.

Maximum UV Index Levels in Locarno for May

The chart shows the monthly maximum UV Index (UVI) for Locarno 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 Locarno typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097532
Data source: Locarno 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 Locarno

As May unfolds in Locarno, Switzerland, it marks a delightful peak in sunshine hours, boasting a remarkable 350 hours of bright daylight. This trend of increasing sunshine is evident as it builds from 301 hours in March to a radiant 330 in April, finally culminating in May's sunshine bounty. Following the gentle warmth of spring, June ramps up the brightness even further with 379 hours, illustrating the region's gradual transition into a sun-drenched summer. This pattern not only enhances the picturesque landscapes of Locarno but also invites visitors to bask in the natural beauty that emerges as the days grow longer and sunnier.

Monthly Sunshine Duration in Locarno: May Highlighted

The May sunshine duration represents the total number of hours Locarno 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.
JanFebMarAprMayJunJulAugSepOctNovDec174h225h301h330h350h379h404h362h302h265h194h193h
Data source: Locarno May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Locarno During May

In Locarno, Switzerland, the likelihood of sunny weather in May presents a somewhat mixed picture, with a 38% chance of sunshine. This figure follows a notable rise in sun exposure during March, which peaks at 58%, before tapering down in April. Interestingly, May's sunshine potential is slightly less than that of the preceding month, hinting at a transition period as spring gives way to the summer months. Compared to the broader seasonal trends, May’s chances of sunshine are higher than those in January and April but fall behind the summer months of August, which boasts a promising 50% chance. Overall, while May might not guarantee unbroken sunshine, it's a month of renewal, making it a delightful time to bask in the emerging warmth as nature awakens.

Percentage of Sunny Days in May in Locarno

The chart illustrates the percentage of sunny days in Locarno 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 Locarno experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%40%58%46%38%33%37%50%35%44%40%46%
Data source: Locarno May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Locarno in May

In Locarno, Switzerland, the transition into May brings a delightful increase in daylight, with the sun shining for an impressive 14 hours each day. This marks a significant leap from January's 9 hours and continues the upward trend seen since the beginning of the year. As spring unfolds, April already showcased 13 hours of daylight, setting the stage for May's vibrant sunshine. The days grow longer leading into summer, peaking in June and July with 15 hours of daylight, before gradually tapering off again in the fall. This rhythmic dance of daylight not only highlights the natural cycle of the year but also invites residents and visitors alike to embrace the outdoor activities and the beauty of Locarno during this sun-soaked period.

Average Daylight Hours in Locarno for May

The chart illustrates the variation in daylight duration in Locarno throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 4m10h 20m11h 56m13h 34m14h 58m15h 41m15h 18m14h 4m12h 29m10h 52m9h 25m8h 40m
Data source: Locarno daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Locarno

In Locarno, Switzerland, May brings a gentle breeze with an average wind speed of 1.4 m/s (3 mph), maintaining a consistent calmness that characterizes the early spring transition. This month mirrors the lighter winds of March and April, suggesting a serene environment ideal for enjoying outdoor activities. Notably, the wind speeds tend to fluctuate throughout the year, with the calmest months occurring from February to July, where speeds hover around 3 mph. However, as the year progresses towards the winter months, a noticeable uptick in wind speed is observed, reaching 2.0 m/s (5 mph) by December. Such trends highlight Locarno's inviting atmosphere in May, making it a delightful time for both residents and visitors to bask in the soft, refreshing winds.

Average May Wind Speed in Locarno

The chart displays monthly wind speed patterns in Locarno, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.21.41.31.4 m/s1.21.31.31.21.41.62.0
Data source: Locarno May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Locarno Compares to Other Months

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

May and January present contrasting weather experiences. In May, temperatures range from a minimum of -7°C (21°F) to a pleasant maximum of 25°C (77°F), fostering a mild environment with an average of 11°C (51°F). This month also sees higher precipitation levels, totaling 176 mm (6.9 in) over approximately 19 days, along with a humidity level of 80%. In stark contrast, January is much colder, with temperatures dipping as low as -16°C (4°F) and only reaching a maximum of 9°C (49°F). The average temperature stands at -2°C (29°F), with significantly less precipitation of 71 mm (2.8 in) over about 10 days, though humidity is higher at 92%. For more detailed information, you can check Locarno weather in January.

When comparing the weather in May and February, a striking contrast emerges. May typically features a more moderate temperature range, with minimums around -7°C (21°F) and maximums reaching up to 25°C (77°F), averaging 11°C (51°F). In contrast, February experiences much colder conditions, with minimum temperatures plummeting to -17°C (2°F) and a maximum of only 17°C (63°F), leading to an average of just 1°C (34°F). Additionally, February sees lower precipitation levels at 56 mm (2.2 in) over 11 days, while May is much wetter, with 176 mm (6.9 in) of rain over 19 days. This results in a higher humidity level in February at 89% compared to May's 80%. For more detailed information, you can check Locarno weather in February.

In comparing the weather between May and March, we see a significant shift in temperatures and precipitation. May experiences a more moderate temperature range, with minimums around -7°C (21°F), averages of 11°C (51°F), and maximums reaching up to 25°C (77°F). In contrast, March is considerably cooler, with minimums plummeting to -17°C (3°F) and averages hovering around 3°C (37°F). Although March has lower overall precipitation at 106 mm (4.2 in) over 12 days, it is also characterized by higher humidity levels at 87% compared to May's 80%. For a detailed view of March's weather patterns, you can check Locarno weather in March.

In comparing the weather between April and May, May tends to be milder and wetter. The average temperature in May reaches 11°C (51°F) with a maximum of 25°C (77°F), significantly warmer than April's average of 7°C (44°F) and maximum of 20°C (68°F). While April experiences less precipitation at 136 mm (5.3 in) over 10 days, May receives more, totaling 176 mm (6.9 in) across 19 days. Additionally, humidity levels slightly decrease in May to 80%, compared to April's 84%. For a closer look at April's weather, you can visit this link: Locarno weather in April.

May and June exhibit notable differences in weather patterns. May tends to be cooler, with temperatures ranging from a minimum of -7°C (21°F) to a maximum of 25°C (77°F) and an average of 11°C (51°F). It experiences higher precipitation levels, totaling 176 mm (6.9 in) over 19 days, accompanied by an 80% humidity level. In contrast, June warms up significantly, with temperatures ranging from a low of 5°C (41°F) to a high of 34°C (93°F) and an average of 15°C (60°F). It also sees slightly less precipitation at 159 mm (6.3 in) over 18 days, while humidity increases to 82%. For a more detailed overview of June weather, visit Locarno weather in June.

May and July present contrasting weather patterns, characterized by distinct temperature ranges and precipitation levels. In May, temperatures can dip to a minimum of -7°C (21°F) while averaging around 11°C (51°F) and reaching a maximum of 25°C (77°F). The month also sees significant precipitation at 176 mm (6.9 in) over 19 days, contributing to a high humidity level of 80%. In contrast, July offers warmer conditions with minimum temperatures of 6°C (44°F), an average of 17°C (63°F), and a maximum of 27°C (80°F). Precipitation decreases to 123 mm (4.9 in) over 18 days while humidity slightly rises to 83%. For a closer look at the specific weather conditions during July, you can visit Locarno weather in July.

May and August present distinct weather patterns, with May typically being cooler and wetter. In May, temperatures range from a chilly minimum of -7°C (21°F) to a pleasant maximum of 25°C (77°F), averaging around 11°C (51°F). The month sees considerable rainfall, with 176 mm (6.9 in) spread over 19 days, contributing to a humid atmosphere with an 80% humidity level. In contrast, August temperatures range from a minimum of 7°C (45°F) to a maximum of 28°C (82°F), with an average of 17°C (62°F). Although August is slightly drier, receiving 169 mm (6.6 in) of precipitation over just 13 days, it maintains the same humidity level of 80%. For a more detailed look at August weather, visit Locarno weather in August.

In May, temperatures typically range from a chilly -7°C (21°F) at night to a warm 25°C (77°F) during the day, with an average temperature of 11°C (51°F). This month experiences considerable precipitation, totaling 176 mm (6.9 in) over about 19 days, and humidity hovers around 80%. In contrast, September sees a milder temperature range of -1°C (31°F) at night to a maximum of 23°C (74°F), with an average temperature of 13°C (55°F). Rainfall is somewhat less in September, with 136 mm (5.4 in) over 14 days, and humidity slightly increases to 83%. For more details, check out Locarno weather in September.

May and October exhibit distinct weather patterns, reflecting the transition from spring to autumn. In May, temperatures typically range from a minimum of -7°C (21°F) to a maximum of 25°C (77°F), with an average of 11°C (51°F). This month is marked by significant precipitation, totaling 176 mm (6.9 in) over 19 days, along with a humidity level of 80%. In contrast, October has a cooler temperature range, with a minimum of -1°C (30°F), an average of 8°C (47°F), and a maximum of 21°C (69°F). While October experiences more rainfall, accumulating 242 mm (9.5 in) over 12 days, it also has a slightly higher humidity level of 90%. For those curious about what to expect in this autumn month, more details can be found in the Locarno weather in October.

May and November present contrasting weather conditions, with May showcasing a broader temperature range, where it can vary from a chilly -7°C (21°F) at night to a pleasant 25°C (77°F) during the day, averaging around 11°C (51°F). In contrast, November experiences cooler temperatures, with a minimum of -9°C (16°F) and a maximum of 15°C (59°F), averaging just 3°C (38°F). Both months see significant precipitation, with May receiving 176 mm (6.9 in) over 19 days, while November has a slightly lower total of 168 mm (6.6 in) across 13 days. Humidity levels are higher in November at 88%, compared to May's 80%, adding to the overall chill of the late autumn air. For more specifics about November weather, you can check Locarno weather in November.

May and December present strikingly different weather conditions. In May, temperatures range from a chilly -7°C (21°F) at night to a pleasant 25°C (77°F) during the day, averaging around 11°C (51°F). This month experiences significant precipitation, with 176 mm (6.9 in) across 19 days, and humidity sitting at 80%. In contrast, December features much colder temperatures, with a minimum of -13°C (10°F) and a maximum of just 9°C (49°F), averaging -1°C (31°F). Although it has lower precipitation at 119 mm (4.7 in) over 12 days, the humidity is notably higher at 90%. For more insights into December weather, check out Locarno weather in December.

Compare Locarno's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Locarno

May in Locarno brings a refreshing shift as spring blossoms into the scene, characterized by a blend of warming temperatures and lingering coolness. With pleasant highs around 25°C (77°F), the warmth invites outdoor adventures, while the average and occasional chilly lows remind visitors of the transitional season. Unlike the drier spells of summer, May experiences around 19 days of rain, adding to the lush greenery and vibrant blooms that define the landscape. The high humidity of approximately 80% can make the days feel more invigorating, as nature awakens from winter's slumber. For more in-depth insights into Locarno's climate, explore Locarno Climate.