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.