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
The average high-temperature for September is an agreeable 21°C (69.8°F), closely aligning with the temperature of the preceding month. During the month of September, Sion-les-Mines's nighttime temperature lowers to an average of 10.9°C (51.6°F).Humidity
The least humid month in Sion-les-Mines is September, with an average relative humidity of 77%.Rainfall
September is the month with the least rainfall. Rain falls for 9.3 days and accumulates 17mm (0.67") of precipitation.Snowfall
In Sion-les-Mines, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 34min.On the first day of the month, sunrise is at 07:25 and sunset at 20:46. On the last day of September, in Sion-les-Mines, sunrise is at 08:04 and sunset at 19:47 CEST.
Sunshine
In Sion-les-Mines, the average sunshine in September is 7.5h.UV index
In Sion-les-Mines, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Sion-les-Mines?
What is the least humid month in Sion-les-Mines?
What is the average humidity in September in Sion-les-Mines?
What is the driest month in Sion-les-Mines?
How many days does it rain in September in Sion-les-Mines?
When it does not snow in Sion-les-Mines?
How many hours of daylight does Sion-les-Mines have in September?
What time are sunrise and sunset in September in Sion-les-Mines?
How long on average sun shines in September in Sion-les-Mines?
How high is the UV index in September in Sion-les-Mines?
Average temperature in September
Sion-les-Mines, France
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in September
Sion-les-Mines, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Sion-les-Mines, France
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Sion-les-Mines, France
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
Sion-les-Mines, France
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is June (39mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days in September
Sion-les-Mines, France
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is September (9.3 days).
Average snowfall in September
Sion-les-Mines, France
- Average snowfall in September: 0mm
The months with the highest snowfall are February, March, April and December (2mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sion-les-Mines, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sion-les-Mines, 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 3min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Sion-les-Mines, France
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is September (17.8 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
Sion-les-Mines, 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
Sion-les-Mines, France
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in September
Sion-les-Mines, France
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, June, July, October, November and December (9km).
The months with the lowest visibility are May, August and September (8km).
