Delémont Weather in September

September in Delémont brings pleasant temperatures around 20°C (68°F) during the day, dropping to 10°C (50°F) at night, with quite a bit of rainfall expected, averaging around 115 mm (4.5 in) for the month.

Rainfall in Delémont in September

Historically, September sees about 13 days of rain, with a monthly average of 115 mm (4.5 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Delémont in September

September in Delémont brings pleasant temperatures, with highs of 20°C (68°F) and nights around 10°C (50°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 10°C (50°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 Delémont in September

You can expect a moderate amount of sunlight, with approximately 162 hours. This means a pleasant 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 Delémont.

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

Delémont Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 43%  

Precipitation 115 mm (4.5 in)  

Rainy days 13 days  

Humidity 77% *  

Sunshine 162 hours *  

Percentage Sunshine 47% *  

* Data from: Basel, Switzerland (28 KM, 17 Miles).

What to Wear in Delémont in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Delémont 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

6/10

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 Delémont's climate page.

More climate data for Delémont

Temperature Rainfall Sunshine Humidity

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