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 perfect, 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.

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For a detailed overview over the year and the best time to visit Germany, check out our Aachen's climate page.

Aachen Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 54%  

Precipitation 74 mm (2.9 in)  

Rainy days 16 days  

Humidity 80% *  

Sunshine 159 hours *  

Percentage Sunshine 41% *  

* Data from: Maastricht, the Netherlands (26 KM, 16 Miles).

What to Wear in Aachen in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Aachen in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Germany, check out our Aachen's climate page.

More climate data for Aachen

Temperature Rainfall Sunshine Humidity

See the full Aachen climate overview or explore weather in Germany.