Aachen Weather in September

September in Aachen brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 11°C (52°F). Quite a bit of rainfall is expected, around 74 mm (2.9 in), so pack an umbrella.

Rainfall in Aachen in September

You can typically expect 16 days of rain this month, averaging around 74 mm (2.9 in). This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Aachen in September

September in Aachen is generally excellent, with days reaching 20°C (68°F) and nights settling around 11°C (52°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Aachen in September

The month brings about 159 hours of sunlight, offering a comfortable mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Aachen.