Paris is typically mild in September.

Maximum temperatures go down compared to the previous month from +77°F to +70°F. The minimum temperature also goes down from +59°F to +54°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how September is compared to other months in Paris:

September weather is still as good as in August. It’s getting colder in September. From +77°F in the day, the average maximum temperature lowers to +70°F. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 56 mm to 53 mm. Humidity rises from 67% to 73%. The average wind speed doesn’t change much during September, staying around 3 m/s. The amount of sunny days stay about the same, averaging 10 sunny days during the month.

Next month (October) brings a further decline in the weather.

The climate in Paris in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1987 (+57°F) and the highest in 2022 (+64°F). The driest year was 1991 with only 366 mm of rainfall, and the wettest year was 2000 with 1287 mm.

For this page, we’ve looked at the typical weather in Paris, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.