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
September's onset brings a negligible change in high-temperatures, falling from a refreshing 19.2°C (66.6°F) in August to a mild 15.1°C (59.2°F). Nighttime temperatures consistently average a wintry 4.9°C (40.8°F) during September.Humidity
In Les Marécottes, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 34mm (1.34") of precipitation.Snowfall
In Les Marécottes, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:53 and sunset at 20:10. On the last day of September, in Les Marécottes, sunrise is at 07:29 and sunset at 19:13 CEST.
Sunshine
In September, the average sunshine is 8.8h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 in September translates into these instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the usual temperature for Les Marécottes in September?
What is the average humidity in September in Les Marécottes?
What is the driest month in Les Marécottes?
How much does it rain in Les Marécottes in September?
When it does not snow in Les Marécottes?
Does it snow in Les Marécottes in September?
How many hours of daylight does Les Marécottes have in September?
When is the sunrise / sunset in September in Les Marécottes?
How many hours of sunshine does Les Marécottes have in September?
What is the UV index reading in September in Les Marécottes?
Average temperature in September
Les Marécottes, Switzerland
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is August (19.2°C).
The month with the lowest average high temperature is January (-0.2°C).
- Average low temperature in September: 4.9°C
The month with the highest average low temperature is July (8°C).
The coldest month (with the lowest average low temperature) is February (-9°C).
Average pressure in September
Les Marécottes, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Les Marécottes, Switzerland
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is December (8.8km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Les Marécottes, Switzerland
- Average humidity in September: 80%
The months with the highest relative humidity are February and March (88%).
The months with the lowest relative humidity are July, August and October (78%).
Average rainfall in September
Les Marécottes, Switzerland
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is December (107mm).
The driest month (with the least rainfall) is September (34mm).
Average rainfall days in September
Les Marécottes, Switzerland
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Les Marécottes, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (431mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Les Marécottes, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Les Marécottes, Switzerland
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Les Marécottes, Switzerland
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (8.9 days).
Average UV index in September
Les Marécottes, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Les Marécottes, Switzerland
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Les Marécottes, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January and February (7km).
Les Marécottes, Switzerland
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