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
September
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from a warm 25.3°C (77.5°F) in August to an agreeable 21.3°C (70.3°F). Ciez reports a consistent average low-temperature of 10.8°C (51.4°F) throughout September nights.Humidity
In September, the average relative humidity in Ciez is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 7.1 days and accumulates 10mm (0.39") of precipitation.Snowfall
April through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September, sunrise is at 07:06 and sunset at 20:27. On the last day of the month, sunrise is at 07:45 and sunset at 19:28 CEST.
Sunshine
The average sunshine in September in Ciez is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Ciez in September?
What is the average humidity in September in Ciez?
What is the driest month in Ciez?
How many days does it rain in September in Ciez?
When it does not snow in Ciez?
Does it snow in Ciez in September?
What is the average length of the day in September in Ciez?
When are sunrise and sunset in September in Ciez?
How many hours of sunshine does Ciez have in September?
How high is the UV index in September in Ciez?
Average temperature in September
Ciez, France
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in September
Ciez, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in September
Ciez, France
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in September
Ciez, France
- Average humidity in September: 75%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Ciez, France
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is December (28mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in September
Ciez, France
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is September (7.1 days).
Average snowfall in September
Ciez, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Ciez, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ciez, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Ciez, France
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in September
Ciez, 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
Ciez, France
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Ciez, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, July, August and September (9km).
The months with the lowest visibility are January, May, June, October, November and December (8km).
