Last updated: March 2, 2024
The weather in Le Mont-sur-Lausanne, Switzerland, during September is characterized by an average temperature of 16°C (61°F). Highs can soar to 25°C (78°F), while lows may dip to 8°C (47°F). Typically, the humidity level in Le Mont-sur-Lausanne throughout September hovers around 81%.
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Average temperature
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Humidity
In September, Le Mont-sur-Lausanne averages 75 mm (2.9 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 29 minutes of daylight, with the sun shining for approximately 11 hours 0 minutes each day. Additionally, there is a 36% probability of sunny days during this period.
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In September, the UV Index in Le Mont-sur-Lausanne reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 3 | 4 | 6 | 7 | 6 | 5 | 4 | 3 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||