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
A mild drop in Porto Valtravaglia's average high-temperature is observed in September, transitioning from a moderately hot 23°C (73.4°F) in August to a comfortable 18.9°C (66°F). In September, the average low-temperature records at a frosty 9.1°C (48.4°F) during the nights.Humidity
In September, the average relative humidity in Porto Valtravaglia is 76%.Rainfall
In Porto Valtravaglia, in September, it is raining for 10.1 days, with typically 28mm (1.1") of accumulated precipitation. In Porto Valtravaglia, during the entire year, the rain falls for 113.9 days and collects up to 730mm (28.74") of precipitation.Snowfall
May through September are months without snowfall in Porto Valtravaglia.Daylight
In September, the average length of the day in Porto Valtravaglia is 12h and 32min.On the first day of September, sunrise is at 06:46 and sunset at 20:03. On the last day of the month, sunrise is at 07:23 and sunset at 19:07 CEST.
Sunshine
In September, the average sunshine in Porto Valtravaglia is 9.6h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Take necessary precautions - Protection from skin and eye injury is mandatory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the usual temperature for Porto Valtravaglia in September?
What is the average humidity in September in Porto Valtravaglia?
How much does it rain in Porto Valtravaglia in September?
When it does not snow in Porto Valtravaglia?
Does it snow in Porto Valtravaglia in September?
What is the average length of the day in September in Porto Valtravaglia?
When is the sunrise / sunset in September in Porto Valtravaglia?
How many hours of sunshine does Porto Valtravaglia have in September?
How high is the UV index in September in Porto Valtravaglia?
Average temperature in September
Porto Valtravaglia, Italy
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 9.1°C
The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is February (-2.6°C).
Average pressure in September
Porto Valtravaglia, Italy
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Porto Valtravaglia, Italy
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is March (7.5km/h).
The calmest month (with the lowest average wind speed) is November (5.9km/h).
Average humidity in September
Porto Valtravaglia, Italy
- Average humidity in September: 76%
The month with the highest relative humidity is November (79%).
The months with the lowest relative humidity are January and July (73%).
Average rainfall in September
Porto Valtravaglia, Italy
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is November (129mm).
The driest month (with the least rainfall) is January (13mm).
Average rainfall days in September
Porto Valtravaglia, Italy
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in September
Porto Valtravaglia, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is November (267mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Porto Valtravaglia, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Porto Valtravaglia, 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 30min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in September
Porto Valtravaglia, Italy
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is January (24.9 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in September
Porto Valtravaglia, Italy
- 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, October, November and December (UV index 2).
Average cloud cover in September
Porto Valtravaglia, Italy
- Average cloud cover in September: 28
The month with the most cloud cover is November (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in September
Porto Valtravaglia, 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).
Porto Valtravaglia, Italy
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