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 onset of September results in a small decrease in the average high-temperature, moderately receding from an agreeable 21.9°C (71.4°F) in August to a comfortable 17.7°C (63.9°F). An average low-temperature of 8°C (46.4°F) is observed during the September nights.Humidity
In Cernier, the average relative humidity in September is 85%.Rainfall
September is the month with the least rainfall in Cernier. Rain falls for 16 days and accumulates 59mm (2.32") of precipitation.Snowfall
In Cernier, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 06:52 and sunset at 20:12. On the last day of September, sunrise is at 07:30 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 3 in September transforms into this advice:
Exercise prevention - Precautions against solar damage are endorsed. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Cernier?
What is the average humidity in September in Cernier?
What is the driest month in Cernier?
How many days does it rain in September in Cernier?
When it does not snow in Cernier?
Does it snow in Cernier in September?
What is the average length of the day in September in Cernier?
When are sunrise and sunset in September in Cernier?
How long on average sun shines in September in Cernier?
How high is the UV index in September in Cernier?
Average temperature in September
Cernier, Switzerland
- Average high temperature in September: 17.7°C
The warmest months (with the highest average high temperature) are July and August (21.9°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 8°C
The months with the highest average low temperature are July and August (11.6°C).
The coldest month (with the lowest average low temperature) is February (-3°C).
Average pressure in September
Cernier, Switzerland
- Average pressure in September: 1018.7mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Cernier, Switzerland
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is February (12km/h).
The calmest month (with the lowest average wind speed) is August (7.1km/h).
Average humidity in September
Cernier, Switzerland
- Average humidity in September: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (81%).
Average rainfall in September
Cernier, Switzerland
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is June (140mm).
The driest month (with the least rainfall) is September (59mm).
Average rainfall days in September
Cernier, Switzerland
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is June (23.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Cernier, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (515mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Cernier, Switzerland
- Average snowfall days in September: 0.1 days
The months with the highest number of snowfall days are January and February (16.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Cernier, Switzerland
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in September
Cernier, Switzerland
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is October (13 days).
The month with the least sunshine days is June (4.2 days).
Average UV index in September
Cernier, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Cernier, Switzerland
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Cernier, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (8km).
The month with the lowest visibility is January (7km).
