September Weather in Boulogne-sur-Gesse

Last updated: March 2, 2024

The weather in Boulogne-sur-Gesse, France, during September is characterized by an average temperature of 18°C (66°F). Highs can soar to 31°C (88°F), while lows may dip to 7°C (46°F). Typically, the humidity level in Boulogne-sur-Gesse throughout September hovers around 73%.

7°C (46°F)

Minimum temperature

18°C (66°F)

Average temperature

31°C (88°F)

Maximum temperature

73%

Humidity

Precipitation and Sunshine hours

In September, Boulogne-sur-Gesse averages 74 mm (2.9 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 27 minutes of daylight, with the sun shining for approximately 11 hours 17 minutes each day. Additionally, there is a 30% probability of sunny days during this period.

74 mm (2.9 inches)

Precipitation

11 rainy days

Rainy days

11 hours 17 minutes

Sunshine hours

30%

Chance of sun

UV Index

In September, the UV Index in Boulogne-sur-Gesse 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.

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 0 1 1 2 4 6 7 7 7 5 3 2 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

Compare Boulogne-sur-Gesse's Climate with Cities Worldwide