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 heralds a minor drop in average high-temperature, sliding from August's pleasant 22.7°C (72.9°F) to a refreshing 18.4°C (65.1°F). Throughout the month of September, Alpens reports a steady low-temperature average of 8°C (46.4°F).Humidity
The average relative humidity in September in Alpens is 75%.Rainfall
In Alpens, during September, the rain falls for 17.2 days and regularly aggregates up to 68mm (2.68") of precipitation. Throughout the year, in Alpens, there are 165.6 rainfall days, and 852mm (33.54") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Alpens. Throughout September, in the average 0.2 snowfall days, it receives 13mm (0.51") of snow. In Alpens, during the entire year, snow falls for 75.3 days and aggregates up to 1736mm (68.35") of snow.Daylight
In September, the average length of the day in Alpens is 12h and 29min.On the first day of September, sunrise is at 07:17 and sunset at 20:25. On the last day of the month, sunrise is at 07:48 and sunset at 19:34 CEST.
Sunshine
In Alpens, the average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Alpens is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, an average UV index of 4 transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Alpens in September?
What is the average humidity in September in Alpens?
How much does it rain in Alpens in September?
When does it start snowing in Alpens?
What is the average length of the day in September in Alpens?
When is the sunrise / sunset in September in Alpens?
How long on average sun shines in September in Alpens?
How high is the UV index in September in Alpens?
Average temperature in September
Alpens, Spain
- Average high temperature in September: 18.4°C
The warmest month (with the highest average high temperature) is July (22.8°C).
The month with the lowest average high temperature is January (4.5°C).
- Average low temperature in September: 8°C
The months with the highest average low temperature are July and August (11.3°C).
The coldest month (with the lowest average low temperature) is February (-4°C).
Average pressure in September
Alpens, Spain
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).
Average wind speed in September
Alpens, Spain
- Average wind speed in September: 5.6km/h
The windiest month (with the highest average wind speed) is February (9km/h).
The calmest months (with the lowest average wind speed) are August and September (5.6km/h).
Average humidity in September
Alpens, Spain
- Average humidity in September: 75%
The month with the highest relative humidity is April (79%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Alpens, Spain
- Average rainfall in September: 68mm
The wettest month (with the highest rainfall) is June (113mm).
The driest month (with the least rainfall) is February (25mm).
Average rainfall days in September
Alpens, Spain
- Average rainfall days in September: 17.2 days
The month with the highest number of rainy days is June (21.6 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Alpens, Spain
- Average snowfall in September: 13mm
The month with the highest snowfall is January (443mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Alpens, Spain
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Alpens, Spain
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The months with the least sunshine are January and November (Average sunshine: 6h and 42min).
Average sunshine days in September
Alpens, Spain
- Average sunshine days in September: 9.6 days
The month with the most sunshine days is December (18.9 days).
The month with the least sunshine days is June (5.8 days).
Average UV index in September
Alpens, Spain
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Alpens, Spain
- Average cloud cover in September: 27
The month with the most cloud cover is April (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in September
Alpens, Spain
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is April (8km).
