September weather forecastParis, France
September
Weather in September
September in Paris marks the arrival of autumn, carrying hints of cooler temperatures. With only 17mm (0.67") rainfall recorded, the city's weather remains mostly clear and sunny. The city starts to don a gold-brown color palette, with leaves changing colors and summer crowds dwindling. It's an ideal time for those who wish to avoid the summer tourist rush and yet enjoy relatively warm weather. The backdrop of fall adds a unique charm to the city, inviting everyone to indulge in leisurely outdoor activities.Temperature
In Paris, entering September brings a subtle temperature decrement, reducing from August's moderately hot 24.5°C (76.1°F) to a pleasant 20.9°C (69.6°F). Throughout September in Paris, a steady low-temperature average of 11.8°C (53.2°F) is noted.Humidity
In September, the average relative humidity is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 9.3 days and accumulates 17mm (0.67") of precipitation.Snowfall
April through November are months without snowfall in Paris.Daylight
The average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:08 and sunset at 20:32. On the last day of September, sunrise is at 07:49 and sunset at 19:31 CEST.
Sunshine
The average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Paris, France
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is July (24.6°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Paris, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).
Average wind speed in September
Paris, France
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in September
Paris, France
- Average humidity in September: 72%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Paris, France
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days in September
Paris, France
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is January (15.1 days).
The month with the least rainy days is September (9.3 days).
Average snowfall in September
Paris, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Paris, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Paris, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Paris, France
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is September (19.1 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in September
Paris, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Paris, France
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Paris, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
