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
With the arrival of September, Seraplana experiences a modest decline in average high-temperatures, transitioning from a refreshing 15.9°C (60.6°F) in August to a fresh 11.7°C (53.1°F). During September, the nighttime temperature averages of 2°C (35.6°F).Humidity
In September, the average relative humidity is 82%.Rainfall
In Seraplana, during September, the rain falls for 10.4 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, there are 98 rainfall days, and 533mm (20.98") of precipitation is accumulated.Snowfall
January through December are months with snowfall in Seraplana, Switzerland. In Seraplana, in September, snow falls for 5.5 days, with typically accumulated 143mm (5.63") of snow. Throughout the year, there are 126.8 snowfall days, and 2369mm (93.27") of snow is accumulated.Daylight
The average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:38 and sunset at 19:57. On the last day of September, sunrise is at 07:16 and sunset at 18:59 CEST.
Sunshine
In Seraplana, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index in Seraplana is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 in September translates into these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
How much does it snow in September?
How many hours of daylight does Seraplana have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Seraplana have in September?
What is the UV index intensity in September?
Average temperature in September
Seraplana, Switzerland
- Average high temperature in September: 11.7°C
The warmest months (with the highest average high temperature) are July and August (15.9°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in September: 2°C
The month with the highest average low temperature is August (5.3°C).
The coldest month (with the lowest average low temperature) is February (-13.7°C).
Average pressure in September
Seraplana, Switzerland
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Seraplana, Switzerland
- Average wind speed in September: 6.3km/h
The windiest months (with the highest average wind speed) are February and November (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Seraplana, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (93%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in September
Seraplana, Switzerland
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the least rainfall) is February (27mm).
Average rainfall days in September
Seraplana, Switzerland
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in September
Seraplana, Switzerland
- Average snowfall in September: 143mm
The month with the highest snowfall is May (316mm).
The month with the least snowfall is July (30mm).
Average snowfall days in September
Seraplana, Switzerland
- Average snowfall days in September: 5.5 days
The month with the highest number of snowfall days is December (15.8 days).
The month with the least snowfall days is July (1.7 days).
Average daylight in September /
Average sunshine in September
Seraplana, 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 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 36min).
Average sunshine days in September
Seraplana, Switzerland
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in September
Seraplana, Switzerland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, April and November (UV index 1).
Average cloud cover in September
Seraplana, Switzerland
- Average cloud cover in September: 45
The months with the most cloud cover are March and May (Cloud cover 59).
The months with the least cloud cover are August and October (Cloud cover 44).
Average visibility in September
Seraplana, Switzerland
- Average visibility in September: 7km
The month with the highest visibility is July (8km).
The months with the lowest visibility are March and April (5km).
