Last updated: August 27, 2025
In May, the average temperature in Grossacker/Opfikon, Switzerland hovers around 13°C (56°F). However, temperatures can vary significantly, dipping to a minimum of -1°C (31°F) and soaring up to a maximum of 30°C (87°F). Expect 123 mm (4.8 in) of precipitation over approximately 16 days, coupled with an average humidity level of 80%. Prepare accordingly for fluctuating weather!
In May in Grossacker/Opfikon, the average temperature is 13°C (56°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop as low as -1°C (31°F). Be prepared for a wide range of temperatures to make the most of your travel experience.
In Grossacker/Opfikon in May, the precipitation amount is 123 mm (4.8 in) distributed over 16 days.
In Grossacker/Opfikon in May humidity is 80%. With average temperature 13°C (56°F) this humidity feels like a damp chill that seeps into your bones, making outdoor exploration more challenging and necessitating layered clothing for comfort.
In Grossacker/Opfikon in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Grossacker/Opfikon.
UV Risk Categories
Weather in Grossacker/Opfikon varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Grossacker/Opfikon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 95 mm (3.7 inches) | 92% | low |
| February Weather | 3°C (39°F) | 75 mm (3.0 inches) | 89% | moderate |
| March Weather | 6°C (43°F) | 86 mm (3.4 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 59 mm (2.3 inches) | 84% | high |
| May Weather | 13°C (56°F) | 123 mm (4.8 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 128 mm (5.0 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 99 mm (3.9 inches) | 83% | very high |
| August Weather | 20°C (67°F) | 120 mm (4.7 inches) | 80% | very high |
| September Weather | 15°C (60°F) | 80 mm (3.2 inches) | 83% | high |
| October Weather | 11°C (51°F) | 93 mm (3.6 inches) | 90% | moderate |
| November Weather | 5°C (41°F) | 65 mm (2.6 inches) | 88% | low |
| December Weather | 3°C (37°F) | 124 mm (4.9 inches) | 90% | low |