September Weather in Grolley

Last updated: March 2, 2024

The weather in Grolley, Switzerland, during September is characterized by an average temperature of 15°C (58°F). Highs can soar to 26°C (79°F), while lows may dip to 6°C (42°F). Typically, the humidity level in Grolley throughout September hovers around 81%.

6°C (42°F)

Minimum temperature

15°C (58°F)

Average temperature

26°C (79°F)

Maximum temperature

81%

Humidity

Precipitation and Sunshine hours

In September, Grolley averages 76 mm (3.0 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 30 minutes of daylight, with the sun shining for approximately 11 hours 0 minutes each day. Additionally, there is a 38% probability of sunny days during this period.

76 mm (3.0 inches)

Precipitation

11 rainy days

Rainy days

11 hours 0 minutes

Sunshine hours

38%

Chance of sun

UV Index

In September, the UV Index in Grolley reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 6 6 5 4 2 1 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

Compare Grolley's Climate with Cities Worldwide