Last updated: August 27, 2025
In Walliswil bei Niederbipp, Switzerland, the average temperature in September hovers around 15°C (59°F). You can expect the minimum temperature to dip to a chilly 2°C (36°F), while the maximum can reach a warm 29°C (84°F). During this month, precipitation typically totals 79 mm (3.1 in) over 13 days, contributing to an average humidity of 83%.
In September in Walliswil bei Niederbipp, the average temperature is 15°C (59°F), with maximums reaching 29°C (84°F) and minimums dropping as low as 2°C (36°F). This variability in temperature makes it essential for travelers to pack layers to comfortably enjoy their stay.
In Walliswil bei Niederbipp in September, the precipitation amount is 79 mm (3.1 in) over a span of 13 days.
In Walliswil bei Niederbipp in September humidity is 83%. With an average temperature of 15°C (59°F), this humidity feels like a cozy, damp embrace that can be quite stifling for traveling, making even short walks feel more exhausting than they should, and prompting a need for frequent breaks in shaded or air-conditioned areas.
In Walliswil bei Niederbipp in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Walliswil bei Niederbipp, you can refer to this Hourly UV Index in Walliswil bei Niederbipp.
UV Risk Categories
Weather in Walliswil bei Niederbipp varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Walliswil bei Niederbipp, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 92 mm (3.6 inches) | 92% | low |
| February Weather | 3°C (38°F) | 77 mm (3.0 inches) | 89% | moderate |
| March Weather | 6°C (43°F) | 94 mm (3.7 inches) | 87% | moderate |
| April Weather | 10°C (50°F) | 66 mm (2.6 inches) | 84% | high |
| May Weather | 13°C (56°F) | 142 mm (5.6 inches) | 80% | very high |
| June Weather | 18°C (65°F) | 128 mm (5.1 inches) | 82% | very high |
| July Weather | 19°C (67°F) | 145 mm (5.7 inches) | 83% | very high |
| August Weather | 19°C (67°F) | 144 mm (5.7 inches) | 80% | very high |
| September Weather | 15°C (59°F) | 79 mm (3.1 inches) | 83% | high |
| October Weather | 10°C (51°F) | 99 mm (3.9 inches) | 90% | moderate |
| November Weather | 5°C (40°F) | 73 mm (2.9 inches) | 88% | low |
| December Weather | 2°C (37°F) | 125 mm (4.9 inches) | 90% | low |