September weather forecastErstfeld, Switzerland
September
Weather in September
September, the first month of the autumn in Erstfeld, is also a moderate month, with temperature in the range of an average low of 5.5°C (41.9°F) and an average high of 14.7°C (58.5°F).Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from 18.8°C (65.8°F) in August to a still refreshing 14.7°C (58.5°F). Erstfeld experiences an average temperature drop to an icy 5.5°C (41.9°F) during September nights.Humidity
In September, the average relative humidity is 82%.Rainfall
In Erstfeld, during September, the rain falls for 18.3 days and regularly aggregates up to 72mm (2.83") of precipitation. Throughout the year, in Erstfeld, there are 216.7 rainfall days, and 1294mm (50.94") of precipitation is accumulated.Snowfall
In Erstfeld, snow does not fall in June through September.Daylight
In Erstfeld, Switzerland, the average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 06:45 and sunset at 20:04. On the last day of September, sunrise is at 07:23 and sunset at 19:06 CEST.
Sunshine
In Erstfeld, Switzerland, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Erstfeld, Switzerland
- Average high temperature in September: 14.7°C
The warmest month (with the highest average high temperature) is August (18.8°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is August (8.8°C).
The coldest month (with the lowest average low temperature) is February (-8°C).
Average pressure in September
Erstfeld, 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 (1015.5mbar).
Average wind speed in September
Erstfeld, Switzerland
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Erstfeld, Switzerland
- Average humidity in September: 82%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Erstfeld, Switzerland
- Average rainfall in September: 72mm
The wettest month (with the highest rainfall) is August (166mm).
The driest month (with the least rainfall) is February (70mm).
Average rainfall days in September
Erstfeld, Switzerland
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in September
Erstfeld, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (232mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Erstfeld, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Erstfeld, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Erstfeld, Switzerland
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is July (4.4 days).
Average UV index in September
Erstfeld, 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 and November (UV index 1).
Average cloud cover in September
Erstfeld, Switzerland
- Average cloud cover in September: 38
The months with the most cloud cover are February, March and May (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 37).
Average visibility in September
Erstfeld, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are April, May, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March and September (7km).
