Olten Weather in September

September in Olten 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 117 mm (4.6 in) for the month.

Rainfall in Olten in September

Looking at the last 30 years, the data shows about 13 days with rain, averaging 117 mm (4.6 in) for the month. 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 Olten in September

In September, expect pleasant temperatures in Olten, with highs of 20°C (68°F) and lows of 10°C (50°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 10°C (50°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Olten in September

The area experiences a moderate amount of sunshine, with approximately 162 hours of sunlight expected. This means a decent mix of sun and overcast.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Olten.