Köln Weather in September

Köln in September sees pleasant daytime temperatures of 21°C (70°F) and nighttime lows of 11°C (52°F). Rainfall is fairly high this month at around 75 mm (3 in), so pack a rain jacket to stay dry.

Rainfall in Köln in September

On average, there are about 15 days with rain during this month, averaging 75 mm (3 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Köln in September

If you're visiting Köln in September, expect perfect temperatures with highs of 21°C (70°F) and overnight lows of 11°C (52°F). Conditions are often most pleasant around the middle of the day. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Köln in September

The area enjoys a balanced 151 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Köln.

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• January
• February
• March
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• 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 Köln's climate page.

Köln Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 50%  

Precipitation 75 mm (3 in)  

Rainy days 15 days  

Sunshine 151 hours *  

Percentage Sunshine *  

What to Wear in Köln 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. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Köln 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 Köln's climate page.

More climate data for Köln

Temperature Rainfall Sunshine

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