September Weather in Braine-l'Alleud

Last updated: March 2, 2024

The weather in Braine-l'Alleud, Belgium, during September is characterized by an average temperature of 15°C (60°F). Highs can soar to 28°C (82°F), while lows may dip to 6°C (43°F). Typically, the humidity level in Braine-l'Alleud throughout September hovers around 82%.

6°C (43°F)

Minimum temperature

15°C (60°F)

Average temperature

28°C (82°F)

Maximum temperature

82%

Humidity

Precipitation and Sunshine hours

In September, Braine-l'Alleud averages 55 mm (2.2 inches) of rainfall, typically over the course of 9 rainy days. The month enjoys an average of 12 hours 34 minutes of daylight, with the sun shining for approximately 10 hours 37 minutes each day. Additionally, there is a 36% probability of sunny days during this period.

55 mm (2.2 inches)

Precipitation

9 rainy days

Rainy days

10 hours 37 minutes

Sunshine hours

36%

Chance of sun

UV Index

In September, the UV Index in Braine-l'Alleud reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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	1	2	3	5	5	5	5	4	2	1	1
Exposure	Low				Moderate						Low
Time to burn	45 min				30 min						45 min