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 onset of September results in a small decrease in the average high-temperature, moderately receding from a comfortable 19.3°C (66.7°F) in August to a still refreshing 15.1°C (59.2°F). Throughout September, Boltigen's nights cool down to an average of 5.2°C (41.4°F).Humidity
In September, the average relative humidity is 81%.Rainfall
The month with the least rainfall in Boltigen is September, when the rain falls for 6.9 days and typically collects 13mm (0.51") of precipitation.Snowfall
In Boltigen, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 33min.On the first day of the month, sunrise is at 06:51 and sunset at 20:09. On the last day of September, in Boltigen, sunrise is at 07:28 and sunset at 19:12 CEST.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Prioritize safety - Recommendations to avert sunburn are shared. Minimize direct exposure to the Sun during midday when its radiation is at its peak. 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
What is the average September temperature in Boltigen?
What is the average humidity in September in Boltigen?
What is the driest month in Boltigen?
How much does it rain in Boltigen in September?
When it does not snow in Boltigen?
Does it snow in Boltigen in September?
How many hours of daylight does Boltigen have in September?
What time are sunrise and sunset in September in Boltigen?
How many hours of sunshine does Boltigen have in September?
What is the UV index intensity in September in Boltigen?
Average temperature in September
Boltigen, Switzerland
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The months with the lowest average high temperature are January and February (-0.3°C).
- Average low temperature in September: 5.2°C
The month with the highest average low temperature is July (7.9°C).
The coldest month (with the lowest average low temperature) is February (-9.1°C).
Average pressure in September
Boltigen, Switzerland
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Boltigen, Switzerland
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is December (9.2km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Boltigen, Switzerland
- Average humidity in September: 81%
The months with the highest relative humidity are February and March (89%).
The months with the lowest relative humidity are July, August and October (79%).
Average rainfall in September
Boltigen, Switzerland
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is May (53mm).
The driest month (with the least rainfall) is September (13mm).
Average rainfall days in September
Boltigen, Switzerland
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Boltigen, Switzerland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (236mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Boltigen, Switzerland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Boltigen, Switzerland
- Average daylight in September: 12h and 3min
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 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Boltigen, Switzerland
- Average sunshine days in September: 22.6 days
The month with the most sunshine days is October (24.6 days).
The month with the least sunshine days is June (17.8 days).
Average UV index in September
Boltigen, Switzerland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Boltigen, Switzerland
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are August and October (Cloud cover 35).
Average visibility in September
Boltigen, 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).
