September weather forecastPratteln, Switzerland
September
Weather in September
September, the first month of the autumn in Pratteln, is still a comfortable month, with temperature in the range of an average low of 9°C (48.2°F) and an average high of 19.4°C (66.9°F).Temperature
September ushers in a minute temperature change, with average high-temperatures reducing from August's warm 23.8°C (74.8°F) to a comfortable 19.4°C (66.9°F). Pratteln reports an average low-temperature of 9°C (48.2°F) during the nights of September.Humidity
The average relative humidity in September in Pratteln is 81%.Rainfall
September is the month with the least rainfall in Pratteln, Switzerland. Rain falls for 13.6 days and accumulates 41mm (1.61") of precipitation.Snowfall
In Pratteln, snow does not fall in June through September.Daylight
In Pratteln, Switzerland, the average length of the day in September is 12h and 34min.On the first day of September in Pratteln, sunrise is at 06:48 and sunset at 20:09. On the last day of the month, sunrise is at 07:27 and sunset at 19:10 CEST.
Sunshine
In September, the average sunshine in Pratteln is 8.7h.UV index
In September, the average daily maximum UV index in Pratteln is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pratteln, Switzerland
- Average high temperature in September: 19.4°C
The warmest months (with the highest average high temperature) are July and August (23.8°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in September: 9°C
The months with the highest average low temperature are July and August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Pratteln, Switzerland
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in September
Pratteln, Switzerland
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is March (9.4km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity in September
Pratteln, Switzerland
- Average humidity in September: 81%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Pratteln, Switzerland
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is June (100mm).
The driest month (with the least rainfall) is September (41mm).
Average rainfall days in September
Pratteln, Switzerland
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is October (13 days).
Average snowfall in September
Pratteln, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (88mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Pratteln, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Pratteln, Switzerland
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Pratteln, Switzerland
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is June (6.1 days).
Average UV index in September
Pratteln, Switzerland
- Average UV index in September: 4
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
Pratteln, Switzerland
- Average cloud cover in September: 35
The months with the most cloud cover are January and December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Pratteln, Switzerland
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
