September weather forecastBrienzwiler, Switzerland
September weather for Brienzwiler, Switzerland: The month with the least rainfall in Brienzwiler, Switzerland, is September, when the rain falls for 19 days and typically collects 81mm (3.19") of precipitation. September, the first month of the autumn in Brienzwiler, is also a moderate month, with an average temperature fluctuating between 4.1°C (39.4°F) and 13.1°C (55.6°F).
September
Weather in September
September, the first month of the autumn in Brienzwiler, is also a moderate month, with an average temperature fluctuating between 4.1°C (39.4°F) and 13.1°C (55.6°F).Temperature
September signals a slight drop in average high-temperature, sliding from August's comfortable 17.3°C (63.1°F) to a still refreshing 13.1°C (55.6°F). Brienzwiler records an average low-temperature of 4.1°C (39.4°F) throughout the month of September.Humidity
In September, the average relative humidity is 84%.Rainfall
September is the month with the least rainfall. Rain falls for 19 days and accumulates 81mm (3.19") of precipitation.Snowfall
June through September are months without snowfall in Brienzwiler.Daylight
In Brienzwiler, the average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 06:48 and sunset at 20:06. On the last day of the month, sunrise is at 07:25 and sunset at 19:09 CEST.
Sunshine
In September, the average sunshine is 8.4h.UV index
The average daily maximum UV index in September in Brienzwiler, Switzerland, is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 2 during September, leads to the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brienzwiler, Switzerland
- Average high temperature in September: 13.1°C
The warmest month (with the highest average high temperature) is August (17.3°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in September: 4.1°C
The month with the highest average low temperature is July (7.6°C).
The coldest month (with the lowest average low temperature) is February (-9.6°C).
Average pressure in September
Brienzwiler, Switzerland
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Brienzwiler, Switzerland
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is December (8.3km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Brienzwiler, Switzerland
- Average humidity in September: 84%
The month with the highest relative humidity is March (91%).
The months with the lowest relative humidity are July and August (81%).
Average rainfall in September
Brienzwiler, Switzerland
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is June (174mm).
The driest month (with the least rainfall) is September (81mm).
Average rainfall days in September
Brienzwiler, Switzerland
- Average rainfall days in September: 19 days
The month with the highest number of rainy days is July (25.7 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in September
Brienzwiler, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (303mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Brienzwiler, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brienzwiler, 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 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Brienzwiler, Switzerland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is October (14.1 days).
The month with the least sunshine days is June (3.2 days).
Average UV index in September
Brienzwiler, Switzerland
- Average UV index in September: 2
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
Brienzwiler, Switzerland
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are August and October (Cloud cover 40).
Average visibility in September
Brienzwiler, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are June, July, August, October and November (8km).
The months with the lowest visibility are January and February (6km).
