Allschwil Weather in September

Allschwil in September sees pleasant temperatures, with highs around 21°C (70°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 98 mm (3.9 in) on average, so pack waterproofs just in case.

Rainfall in Allschwil in September

Historically, the month has about 13 days of rain, averaging 98 mm (3.9 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Allschwil in September

Allschwil in September is worth a visit. The temperature is perfect, with 21°C (70°F) during the day and 10°C (50°F) at night. 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 Allschwil in September

The area enjoys a moderate level of sunlight, with around 162 hours. It's a good balance between sunny and cloudy days.

If your ideal day consists of dry skies and pleasant temperatures, September typically offers the best circumstances for Allschwil.

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

Allschwil Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 42%  

Precipitation 98 mm (3.9 in)  

Rainy days 13 days  

Humidity 77% *  

Sunshine 162 hours *  

Percentage Sunshine 47% *  

* Data from: Basel, Switzerland (4 KM, 2 Miles).

What to Wear in Allschwil 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Allschwil 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 Switzerland, check out our Allschwil's climate page.

More climate data for Allschwil

Temperature Rainfall Sunshine Humidity

See the full Allschwil climate overview or explore weather in Switzerland.