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
Weather in September
Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 24.2°C (75.6°F) in August to a refreshing 19.5°C (67.1°F). An average nighttime temperature of 10.4°C (50.7°F) is witnessed throughout September.Humidity
In September, the average relative humidity is 77%.Rainfall
In September, in Valmadrera, the rain falls for 16 days. Throughout September, 75mm (2.95") of precipitation is accumulated. In Valmadrera, during the entire year, the rain falls for 192.7 days and collects up to 1242mm (48.9") of precipitation.Snowfall
Months with snowfall in Valmadrera are January through March, September, November and December. September is the first month it typically snows in Valmadrera. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Valmadrera, Italy, during the entire year, snow falls for 10.2 days and aggregates up to 132mm (5.2") of snow.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Valmadrera, sunrise is at 06:44 and sunset at 20:00. On the last day of the month, sunrise is at 07:20 and sunset at 19:04 CEST.
Sunshine
The average sunshine in September is 9.7h.UV index
In Valmadrera, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 suggests this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What are the temperatures in Valmadrera in September?
What is the average humidity in September in Valmadrera?
How much does it rain in Valmadrera in September?
When does it start to snow in Valmadrera?
How many hours of daylight does Valmadrera have in September?
When is the sunrise / sunset in September in Valmadrera?
How many hours of sunshine does Valmadrera have in September?
What is the UV index intensity in September in Valmadrera?
Average temperature in September
Valmadrera, Italy
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in September: 10.4°C
The months with the highest average low temperature are July and August (14.2°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).
Average pressure in September
Valmadrera, Italy
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The months with the lowest atmospheric pressure are April and May (1014.9mbar).
Average wind speed in September
Valmadrera, Italy
- Average wind speed in September: 5.9km/h
The windiest months (with the highest average wind speed) are March and May (6.6km/h).
The calmest month (with the lowest average wind speed) is November (5.4km/h).
Average humidity in September
Valmadrera, Italy
- Average humidity in September: 77%
The month with the highest relative humidity is November (81%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Valmadrera, Italy
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is November (162mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Valmadrera, Italy
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is May (23.2 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in September
Valmadrera, Italy
- Average snowfall in September: 1mm
The month with the highest snowfall is December (36mm).
The months with the least snowfall are April, May, June, July, August and October (0mm).
Average snowfall days in September
Valmadrera, Italy
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Valmadrera, Italy
- 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: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in September
Valmadrera, Italy
- Average sunshine days in September: 11.9 days
The months with the most sunshine days are January and December (18.3 days).
The month with the least sunshine days is May (5.1 days).
Average UV index in September
Valmadrera, Italy
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Valmadrera, Italy
- Average cloud cover in September: 29
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in September
Valmadrera, Italy
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Valmadrera, Italy
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