September weather forecastFlerden, Switzerland
September
Weather in September
The first month of the autumn, September, is also a moderate month in Flerden, Switzerland, with an average temperature ranging between min 3.1°C (37.6°F) and max 13.5°C (56.3°F).Temperature
Flerden records a mild change in average high-temperature during September, easing from a comfortable 17.8°C (64°F) in August to a moderate 13.5°C (56.3°F). Flerden observes an average low-temperature of 3.1°C (37.6°F) during September nights.Humidity
In September, the average relative humidity in Flerden, Switzerland, is 82%.Rainfall
In Flerden, in September, it is raining for 14 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, in Flerden, there are 139.1 rainfall days, and 628mm (24.72") of precipitation is accumulated.Snowfall
Months with snowfall are January through December. In Flerden, Switzerland, during September, snow falls for 1.6 days and regularly aggregates up to 15mm (0.59") of snow. In Flerden, during the entire year, snow falls for 104.8 days and aggregates up to 1982mm (78.03") of snow.Daylight
The average length of the day in September is 12h and 33min.On the first day of September in Flerden, sunrise is at 06:42 and sunset at 20:01. On the last day of the month, sunrise is at 07:20 and sunset at 19:04 CEST.
Sunshine
The average sunshine in September in Flerden is 8.9h.UV index
In Flerden, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Flerden, Switzerland
- Average high temperature in September: 13.5°C
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in September: 3.1°C
The months with the highest average low temperature are July and August (6.3°C).
The coldest month (with the lowest average low temperature) is February (-10.8°C).
Average pressure in September
Flerden, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Flerden, Switzerland
- Average wind speed in September: 6.8km/h
The windiest months (with the highest average wind speed) are February and November (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Flerden, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (91%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Flerden, Switzerland
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (88mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Flerden, Switzerland
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Flerden, Switzerland
- Average snowfall in September: 15mm
The month with the highest snowfall is December (403mm).
The month with the least snowfall is August (1mm).
Average snowfall days in September
Flerden, Switzerland
- Average snowfall days in September: 1.6 days
The month with the highest number of snowfall days is January (18.3 days).
The month with the least snowfall days is July (0.1 days).
Average daylight in September /
Average sunshine in September
Flerden, Switzerland
- Average daylight in September: 12h and 36min
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 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in September
Flerden, Switzerland
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Flerden, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Flerden, Switzerland
- Average cloud cover in September: 42
The month with the most cloud cover is March (Cloud cover 51).
The months with the least cloud cover are July, August and October (Cloud cover 40).
Average visibility in September
Flerden, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August and October (8km).
The months with the lowest visibility are January, February and March (6km).
