Grenzach-Wyhlen Weather in September

Grenzach-Wyhlen in September averages 21°C (70°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 Grenzach-Wyhlen in September

Historically, the month has about 13 days of rain, averaging 97 mm (3.8 in) in total. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Grenzach-Wyhlen in September

September is a good time to be in Grenzach-Wyhlen. Days are perfect, reaching 21°C (70°F), with nights around 10°C (50°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. 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 Grenzach-Wyhlen in September

The month brings about 162 hours of sunlight, offering a comfortable mix of sun and overcast.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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

Grenzach-Wyhlen Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 42%  

Precipitation 97 mm (3.8 in)  

Rainy days 13 days  

Humidity 77% *  

Sunshine 162 hours *  

Percentage Sunshine 47% *  

* Data from: Basel, Switzerland (7 KM, 4 Miles).

What to Wear in Grenzach-Wyhlen in September

For Grenzach-Wyhlen in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Grenzach-Wyhlen 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 Grenzach-Wyhlen's climate page.

More climate data for Grenzach-Wyhlen

Temperature Rainfall Sunshine Humidity

See the full Grenzach-Wyhlen climate overview or explore weather in Germany.