May Weather in Greifensee, Switzerland

Last updated: August 27, 2025

In May, Greifensee, Switzerland experiences a diverse range of weather patterns, where temperatures fluctuate between a maximum of 28°C (84°F) and a minimum of -5°C (24°F), resulting in an average temperature of 12°C (53°F). This month is marked by notable precipitation, totaling 159 mm (6.3 in) across 20 days, contributing to a humidity level of around 80%. As spring unfolds, residents and visitors can expect a vibrant landscape, though they should prepare for intermittent rain and varying temperatures that characterize this beautiful Swiss locale.

May Temperature in Greifensee

May in Greifensee, Switzerland, is a breath of fresh air as spring fully unfolds. With temperatures ranging from a minimum of -5°C (24°F) to a maximum of 28°C (84°F), the transition from the chill of winter to the warmth of summer becomes strikingly evident. The average temperature climbs to a pleasant 12°C (53°F), making it an ideal time for outdoor activities and enjoying the natural beauty of the region. While early months like January through April feature harsher climates with snow-dusted landscapes, May ushers in a sense of warmth and optimism, with daylight extending and flora flourishing. This month sets the tone for a vibrant summer ahead, inviting both locals and visitors to bask in Greifensee’s stunning scenery and mild climate.

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

The chart illustrates May temperature patterns in Greifensee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greifensee, 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).
JanFebMarAprMayJunJulAugSepOctNovDec323640475362656457494035
Data source: Temperature data for Greifensee 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 Greifensee

In May, Greifensee, Switzerland experiences a significant uptick in precipitation, recording 159 mm (6.3 in) of rainfall over 20 days—the highest monthly total so far this year. This increase marks a clear transition into the wetter months, as spring blossoms into summer. Notably, May's rainfall considerably surpasses that of April's 87 mm (3.4 in), highlighting a shift in weather patterns. As the landscape flourishes, the consistent rainfall not only nurtures the greenery but also prepares the region for the even wetter months of June and August, where precipitation levels remain elevated. This pattern suggests a robust start to the summer season, characterized by rich ecosystems thriving under the generous May showers.

May Precipitation Trends in Greifensee

The chart displays monthly precipitation patterns in Greifensee, 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 Greifensee, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec127951128715918714515812412880155
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Greifensee

In Greifensee, Switzerland, May marks a transition with humidity levels dropping to 80%, the lowest in the spring months, signaling the approach of warmer weather. Following a gradual decline from the wet winter months of January and February, which boast humidity levels around 92% and 89%, respectively, April sees a slight moderation at 84%. The pleasing drop in humidity in May sets the stage for the summer months, where levels slightly rise again, peaking at 83% in July. This trend highlights a natural rhythm of humidity that fluctuates with the seasons, offering residents and visitors a refreshing, albeit still humid, atmosphere as they enjoy the blossoming beauty of late spring.

May Average Humidity in Greifensee

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

As May arrives in Greifensee, Switzerland, the sun begins to shine more brightly, bringing the UV Index to a notable 8, categorizing it as very high. This dramatic increase follows the trend of escalating UV levels, with March and April registering at moderate and high levels, respectively. Sun-seekers should be especially cautious this month, as the risk of skin damage heightens, reducing safe sun exposure to just 15 minutes. With summer approaching, the UV Index will only continue to climb, underscoring the importance of sun protection. For further insights into UV levels throughout the year, visit the Greifensee UV Index.

Maximum UV Index Levels in Greifensee for May

The chart shows the monthly maximum UV Index (UVI) for Greifensee 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 Greifensee typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810986432
Data source: Greifensee 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 Greifensee

In Greifensee, Switzerland, May bursts forth as a sunlit crown jewel, boasting 365 hours of sunshine that brightens the landscape and uplifts spirits. Following a gradual increase from the year’s chilly start—where January and February struggled with only 163 and 227 hours, respectively—sunshine hours crescendo through spring. With 299 hours in March and 355 hours in April, May signifies the peak of this upward trend, paving the way for the long, glorious days of summer. Even as the sunniest months of June and July shine with 382 and 410 hours, the May sun remains unforgettable, nurturing the vibrant scenery and inviting residents and visitors alike to bask in its warmth.

Monthly Sunshine Duration in Greifensee: May Highlighted

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

Chance of Sun in Greifensee During May

In Greifensee, Switzerland, the likelihood of sunny weather in May stands at a moderate 33%, showing a slight dip compared to the preceding months of April and March, which boast higher chances of sunnier days at 47% and 44% respectively. This trend suggests that while spring begins to wane and the anticipation of summer builds, May tends to experience a mix of delightful sun and variable clouds. Interestingly, as we move into the summer months like June and July, the chances of sunny weather hold steady around the low 30s to mid 30s percentage range, indicating a generally consistent but unpredictable climate. Overall, May offers an enticing glimpse of sunny potential, even if it's not the peak of the sunny season just yet.

Percentage of Sunny Days in May in Greifensee

The chart illustrates the percentage of sunny days in Greifensee 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 Greifensee experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%38%44%47%33%32%34%37%43%41%29%36%
Data source: Greifensee May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Greifensee in May

As spring unfolds in Greifensee, Switzerland, daylight duration blossoms dramatically, reaching a peak of 15 hours by May. Starting the year with only 8 hours in January, daylight gradually increases, with February bringing 10 hours, and March offering 11 hours. The transition to longer days becomes even more noticeable in April, where it jumps to 13 hours. By May, residents and visitors can fully embrace the sunlit hours, making outdoor activities more enjoyable. This trend of extended daylight continues into June and July, maintaining the 15-hour mark, before a gradual tapering off begins in August. The changing seasons in Greifensee beautifully illustrate the powerful shift from winter's darkness to the vibrant light of summer.

Average Daylight Hours in Greifensee for May

The chart illustrates the variation in daylight duration in Greifensee throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 56m10h 16m11h 56m13h 38m15h 6m15h 52m15h 28m14h 9m12h 30m10h 48m9h 18m8h 31m
Data source: Greifensee daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Greifensee

In Greifensee, Switzerland, May brings a refreshing increase in wind speed, averaging 2.2 m/s (5 mph), which stands out against the calmer conditions of earlier months. After a series of low winds in January through April, May's breezes indicate a subtle shift as spring unfolds, providing a gentle lift to the atmosphere. This mild uptick marks a transition from the stagnant winter months, setting the stage for a more dynamic summer. As summer approaches, the wind speed takes a dip again in June and fluctuates further into the following months. Overall, May's winds serve as a charming reminder of nature's awakening, offering a delightful contrast to the preceding stillness.

Average May Wind Speed in Greifensee

The chart displays monthly wind speed patterns in Greifensee, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.01.91.81.92.2 m/s1.51.61.51.51.61.61.9
Data source: Greifensee May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Greifensee Compares to Other Months

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

In May, the weather is notably milder, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 28°C (84°F) and an average of 12°C (53°F). It also experiences a higher level of precipitation at 159 mm (6.3 in) over about 20 days, accompanied by a humidity level of 80%. In contrast, January sees colder temperatures, with a minimum of -12°C (10°F), an average of 0°C (32°F), and a maximum of 13°C (56°F). Precipitation is lower at 127 mm (5.0 in) over 12 days, but the humidity is slightly higher at 92%. This contrast underscores May’s more varied weather compared to the cold, damp conditions typical of January. For more detailed information, check out Greifensee weather in January.

May typically presents a more temperate climate compared to February, with minimum temperatures around -5°C (24°F) and an average of 12°C (53°F), peaking at a warm 28°C (84°F). In contrast, February experiences colder conditions, with minimum temperatures dropping to -15°C (6°F), an average of 2°C (36°F), and a maximum of 17°C (62°F). Additionally, May sees a higher level of precipitation at 159 mm (6.3 in) over 20 days, while February has lesser precipitation of 95 mm (3.7 in) across 12 days, despite slightly higher humidity in February at 89% compared to May's 80%. For a more detailed look, check out the Greifensee weather in February.

When comparing the weather in May and March, we see a marked difference in temperature and overall conditions. May typically boasts warmer temperatures, with an average of 12°C (53°F) and highs reaching up to 28°C (84°F), while March remains much cooler, averaging only 4°C (40°F) and peaking at 19°C (67°F). Precipitation levels are relatively high in both months, but May sees more rainfall, totaling 159 mm (6.3 in) over 20 days compared to March's 112 mm (4.4 in) over 17 days. Additionally, humidity levels in March are slightly higher at 87%, compared to 80% in May. For more specific insights on March weather conditions, you can refer to Greifensee weather in March.

When comparing the weather in April and May, it's clear that May experiences a significant increase in temperatures. While April's average temperature hovers around 8°C (47°F), May's average rises to a milder 12°C (53°F), with maximum temperatures reaching up to 28°C (84°F). In contrast, April's maximum temperature is only 24°C (76°F). Although both months experience notable precipitation, with May totaling 159 mm (6.3 in) over 20 days and April providing 87 mm (3.4 in) over 12 days, April features slightly higher humidity levels at 84% compared to May's 80%. For a more detailed exploration of April’s weather patterns, you can visit Greifensee weather in April.

May and June exhibit significant differences in weather patterns. In May, temperatures range from a minimum of -5°C (24°F) to a maximum of 28°C (84°F), with an average of 12°C (53°F). The month experiences considerable rainfall, totaling 159 mm (6.3 in) over 20 days, and maintains a high humidity level of 80%. In contrast, June sees a pronounced increase in warmth, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 32°C (90°F) and an average of 17°C (63°F). Although June has slightly more precipitation at 187 mm (7.4 in) over just 17 days, the humidity remains comparable at 82%. For a closer look at June's specific weather conditions, you can visit Greifensee weather in June.

In comparison to May, July experiences generally warmer temperatures, with minimums rising from -5°C (24°F) in May to 8°C (47°F) in July. The average temperature also increases significantly from 12°C (53°F) to 18°C (65°F), culminating in a higher maximum temperature of 33°C (91°F) compared to May's max of 28°C (84°F). While May sees more precipitation at 159 mm (6.3 in) over 20 days, July has slightly less at 145 mm (5.7 in) over 16 days, making it a drier month. Humidity remains relatively high in both months, with May at 80% and July slightly higher at 83%. For more detailed insights, check out Greifensee weather in July.

May and August present distinct weather characteristics despite their proximity within the same year. In May, temperatures range from a minimum of -5°C (24°F) to a maximum of 28°C (84°F), with an average of 12°C (53°F). This month typically experiences significant precipitation, averaging 159 mm (6.3 in) over 20 days, contributing to a humid environment with 80% humidity.

In contrast, August enjoys milder temperatures, starting from a minimum of 8°C (46°F) and peaking at 32°C (90°F), with an average of 18°C (65°F). The month sees slightly less precipitation, with around 158 mm (6.2 in) over 15 days, while maintaining the same level of humidity at 80%. For more detailed insights into the climate specifics, you can check out Greifensee weather in August. Overall, while May is marked by cooler and wetter conditions, August offers a warmer and drier experience.

May and September present distinct weather patterns, making each month unique in its own right. In May, temperatures range from a chilly minimum of -5°C (24°F) to a comfortable maximum of 28°C (84°F), with an average temperature of 12°C (53°F). This month experiences considerable rainfall, with about 159 mm (6.3 in) spread over approximately 20 days, leading to an average humidity of 80%.

In contrast, September showcases slightly milder temperature fluctuations, with a low of 2°C (36°F), an average of 14°C (57°F), and a high of 27°C (80°F). It has less precipitation, totaling around 123 mm (4.9 in) across roughly 14 days, while humidity levels rise slightly to 83%. This comparison highlights May's wetter, cooler conditions as opposed to September's more stable and drier weather. For more detailed insights, you can check the Greifensee weather in September.

In comparing the weather between May and October, we notice distinct differences in temperature and precipitation. May experiences a wider temperature range, with minimums dropping to -5°C (24°F) and maximums reaching up to 28°C (84°F), while October's temperatures are milder, with a minimum of 0°C (32°F) and maximum of 22°C (72°F). Although both months are relatively humid, October's humidity is slightly higher at 90%, compared to May's 80%. Additionally, May sees more precipitation, totaling 159 mm (6.3 in) over 20 days, whereas October receives 128 mm (5.0 in) over just 13 days. For more specifics on October's weather, you can check out Greifensee weather in October.

May and November present contrasting weather experiences, with May generally offering warmer temperatures. In May, temperatures range from a chilly minimum of -5°C (24°F) to a much warmer maximum of 28°C (84°F), averaging around 12°C (53°F). The month is characterized by notable precipitation, totaling 159 mm (6.3 in) over 20 days, and a humidity level of 80%. In contrast, November sees a significant drop in average temperature to 4°C (40°F) and a maximum of only 20°C (69°F), with the same minimum of -5°C (24°F). Rainfall is lower at 80 mm (3.1 in) across 13 days, but humidity rises slightly to 88%. For those interested in the specifics of November weather, you can find more details here: Greifensee weather in November.

May and December present quite different weather conditions, reflecting the transition from spring to winter. In May, temperatures vary more significantly, with a minimum of -5°C (24°F), an average of 12°C (53°F), and a maximum of 28°C (84°F), offering more pleasant and warmer days. The month sees an average of 159 mm (6.3 in) of precipitation over 20 days, with a humidity level hovering around 80%. Conversely, December experiences colder temperatures, ranging from a minimum of -10°C (14°F) to a maximum of 12°C (54°F), with an average temperature of just 2°C (35°F). The precipitation is slightly lower at 155 mm (6.1 in) across 19 days, but humidity rises to 90%, contributing to a brisk and damp atmosphere. For more details, you can check Greifensee weather in December.

Compare Greifensee's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Greifensee

As May arrives at Greifensee, the weather transforms into a delightful blend of warmth and occasional showers, setting it apart from the colder preceding months. With temperatures reaching a pleasant 28°C (84°F), the region sees a significant increase in warmth, inviting outdoor activities. However, this lovely weather is often accompanied by an average humidity level of 80% and around 20 days of precipitation, adding a refreshing touch to the landscape. Overall, May is a month of vibrant change, bridging the crispness of spring and the full bloom of summer. To learn more about the yearly climate patterns, visit Greifensee Climate.