Weather in Heerlen in September
The weather in Heerlen in September is relatively comfortable for a trip in terms of degrees (11-19), but it might be rainy (around 19 rainfall days) so it is important to prepare yourself with an umbrella and raincoat.
Avg Temp
11° - 19°
Avg Rainy Days
19
Avg Dry Days
11
Avg Snow Days
0
Weather Facts - Heerlen in September
* The warmest temperature recorded in in September is 31°C
* The coldest temperature recorded in Heerlen in September is 3°C
* The average rainfall in Heerlen in September is 63 mm