Les Ulis Weather in September

Les Ulis in September sees high temperatures, with highs around 22°C (72°F) and overnight lows of 11°C (52°F). It's the driest month of the year, with very little rainfall to worry about.

Rainfall in Les Ulis in September

Conditions tend to be dry and settled, making it a good month for outdoor plans. Looking at the last 30 years, the data shows about 12 days with rain, averaging 53 mm (2.1 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Les Ulis in September

September in Les Ulis is generally excellent, with days reaching 22°C (72°F) and nights settling around 11°C (52°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 11°C (52°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 Les Ulis in September

The month brings about 172 hours of sunlight, offering a comfortable mix of sun and overcast.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Les Ulis.