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
The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a refreshing 18.9°C (66°F) in August to a mild 14.8°C (58.6°F). In Stein, an average temperature of 5.3°C (41.5°F) is noted during September nights.Humidity
The average relative humidity in September is 82%.Rainfall
September is the month with the least rainfall. Rain falls for 9.8 days and accumulates 16mm (0.63") of precipitation.Snowfall
In Stein, snow does not fall in June through September.Daylight
In September, the average length of the day in Stein is 12h and 34min.On the first day of the month, sunrise is at 06:47 and sunset at 20:08. On the last day of September, sunrise is at 07:26 and sunset at 19:09 CEST.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Stein, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 3 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September in Stein?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Stein have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Stein, Switzerland
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is August (18.9°C).
The month with the lowest average high temperature is January (-0.6°C).
- Average low temperature in September: 5.3°C
The month with the highest average low temperature is August (8.6°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).
Average pressure in September
Stein, 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
Stein, Switzerland
- Average wind speed in September: 5.8km/h
The windiest month (with the highest average wind speed) is December (8.1km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Stein, Switzerland
- Average humidity in September: 82%
The months with the highest relative humidity are February and March (89%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Stein, Switzerland
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Stein, Switzerland
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
Stein, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Stein, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stein, Switzerland
- Average daylight in September: 12h and 4min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Stein, Switzerland
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in September
Stein, 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
Stein, Switzerland
- Average cloud cover in September: 38
The months with the most cloud cover are February and May (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 36).
Average visibility in September
Stein, Switzerland
- Average visibility in September: 7km
The months with the highest visibility are April, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March, May and September (7km).
