Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 24.9°C (76.8°F) to a pleasant 21.1°C (70°F). Nighttime temperatures in September average to a fresh 11.7°C (53.1°F).Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall in La Ferté-Alais is September, when the rain falls for 9.1 days and typically collects 16mm (0.63") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In La Ferté-Alais, France, the average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 07:08 and sunset at 20:32. On the last day of the month, sunrise is at 07:49 and sunset at 19:31 CEST.
Sunshine
In September, the average sunshine is 7.8h.UV index
The average daily maximum UV index in September in La Ferté-Alais is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Take necessary precautions - Defending against sun damage is advocated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What is the temperature in September in La Ferté-Alais?
What is the average humidity in September in La Ferté-Alais?
What is the driest month in La Ferté-Alais?
How much does it rain in La Ferté-Alais in September?
When it does not snow in La Ferté-Alais?
How many hours of daylight does La Ferté-Alais have in September?
What time are sunrise and sunset in September in La Ferté-Alais?
How many hours of sunshine does La Ferté-Alais have in September?
What is the UV index intensity in September in La Ferté-Alais?
Average temperature in September
La Ferté-Alais, France
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (15°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in September
La Ferté-Alais, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed in September
La Ferté-Alais, France
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
La Ferté-Alais, France
- Average humidity in September: 73%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
La Ferté-Alais, France
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
La Ferté-Alais, France
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is September (9.1 days).
Average snowfall in September
La Ferté-Alais, France
- Average snowfall in September: 0mm
The months with the highest snowfall are February and December (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
La Ferté-Alais, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
La Ferté-Alais, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
La Ferté-Alais, France
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
La Ferté-Alais, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
La Ferté-Alais, 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
La Ferté-Alais, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
La Ferté-Alais, France
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