Altenahr Weather in September

Altenahr in September averages 19°C (66°F) during the day and 10°C (50°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Altenahr in September

Typically around 15 days of rainfall are expected, averaging 68 mm (2.7 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Altenahr in September

If you're visiting Altenahr in September, expect highs of 19°C (66°F) and overnight lows around 10°C (50°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Altenahr in September

The area enjoys a moderate level of sunlight, with around 142 hours. It's a good balance between sunny and cloudy days.

If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Altenahr Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 50%  

Precipitation 68 mm (2.7 in)  

Rainy days 15 days  

Sunshine 142 hours *  

Percentage Sunshine *  

* Data from: Bonn, Germany (25 KM, 15 Miles).

What to Wear in Altenahr 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Altenahr in September

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

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 Altenahr's climate page.

More climate data for Altenahr

Temperature Rainfall Sunshine

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