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
September signifies a gentle decline in Lalden's average high-temperature, easing from a moderate 13.8°C (56.8°F) in August to a frosty 9.8°C (49.6°F). The mean low-temperature during September nights in Lalden is a cold 1.5°C (34.7°F).Humidity
In September, the average relative humidity is 86%.Rainfall
In September, in Lalden, the rain falls for 17.5 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Lalden, during the entire year, the rain falls for 148 days and collects up to 606mm (23.86") of precipitation.Snowfall
January through December are months with snowfall in Lalden. In September, it is snowing for 2.2 days. Throughout September, 43mm (1.69") of snow is accumulated. In Lalden, during the entire year, snow falls for 124.7 days and aggregates up to 1943mm (76.5") of snow.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Lalden, Switzerland, sunrise is at 06:49 and sunset at 20:07. On the last day of the month, sunrise is at 07:26 and sunset at 19:10 CEST.
Sunshine
In September, the average sunshine is 6.9h.UV index
In Lalden, Switzerland, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 2 suggests these recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Lalden?
What is the average humidity in September in Lalden?
How much does it rain in Lalden in September?
How many days does it snow in September in Lalden?
How many hours of daylight does Lalden have in September?
What time are sunrise and sunset in September in Lalden?
How long on average sun shines in September in Lalden?
How high is the UV index in September in Lalden?
Average temperature in September
Lalden, Switzerland
- Average high temperature in September: 9.8°C
The warmest month (with the highest average high temperature) is July (14.1°C).
The month with the lowest average high temperature is January (-4.2°C).
- Average low temperature in September: 1.5°C
The months with the highest average low temperature are July and August (4.3°C).
The coldest month (with the lowest average low temperature) is February (-13.8°C).
Average pressure in September
Lalden, Switzerland
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Lalden, Switzerland
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is December (9.5km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Lalden, Switzerland
- Average humidity in September: 86%
The months with the highest relative humidity are March and April (93%).
The months with the lowest relative humidity are July and August (84%).
Average rainfall in September
Lalden, Switzerland
- Average rainfall in September: 36mm
The wettest months (with the highest rainfall) are June and August (74mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in September
Lalden, Switzerland
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (25.3 days).
The month with the least rainy days is December (2.5 days).
Average snowfall in September
Lalden, Switzerland
- Average snowfall in September: 43mm
The month with the highest snowfall is November (472mm).
The month with the least snowfall is July (2mm).
Average snowfall days in September
Lalden, Switzerland
- Average snowfall days in September: 2.2 days
The month with the highest number of snowfall days is March (19.5 days).
The month with the least snowfall days is July (0.2 days).
Average daylight in September /
Average sunshine in September
Lalden, Switzerland
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is July (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Lalden, Switzerland
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is August (3.9 days).
Average UV index in September
Lalden, Switzerland
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in September
Lalden, Switzerland
- Average cloud cover in September: 57
The month with the most cloud cover is May (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 52).
Average visibility in September
Lalden, Switzerland
- Average visibility in September: 7km
The month with the highest visibility is July (8km).
The months with the lowest visibility are January, February, March, April, May and November (6km).
