September weather forecast
Legnano, Italy

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Legnano, Italy, with temperature in the range of an average high of 22.8°C (73°F) and an average low of 13.6°C (56.5°F).

Temperature

A mild drop in Legnano's average high-temperature is observed in September, transitioning from a warm 27.7°C (81.9°F) in August to an agreeable 22.8°C (73°F). Throughout the month of September, Legnano reports a steady low-temperature average of 13.6°C (56.5°F).

Humidity

The average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 14.8 days. Throughout September, 72mm (2.83") of precipitation is accumulated. Throughout the year, in Legnano, there are 178.4 rainfall days, and 1147mm (45.16") of precipitation is accumulated.

Snowfall

In Legnano, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of September in Legnano, Italy, sunrise is at 06:46 and sunset at 20:02. On the last day of the month, sunrise is at 07:21 and sunset at 19:06 CEST.

Sunshine

The average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September in Legnano is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 5 during September translates into the following guidance:
Make use of precautions - It is urged to ward off sun damage. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. 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.

Frequently asked questions

What is the usual temperature for Legnano in September?
During September, Legnano experiences an average high-temperature of 22.8°C (73°F) and a low-temperature of 13.6°C (56.5°F). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 30°C (86°F).
What is the average humidity in September in Legnano?
In September, the average relative humidity in Legnano is 72%.
How many days does it rain in September in Legnano?
In September, in Legnano, Italy, the rain falls for 14.8 days. Throughout September, 72mm (2.83") of precipitation is accumulated.
When it does not snow in Legnano?
In Legnano, Italy, snow does not fall in April through October.
What is the average length of the day in September in Legnano?
In Legnano, Italy, the average day length in September is 12h and 32min.
When are sunrise and sunset in September in Legnano?
On the first day of September in Legnano, sunrise is at 06:46 and sunset at 20:02. On the last day of the month, sunrise is at 07:21 and sunset at 19:06 CEST.
How long on average sun shines in September in Legnano?
The average sunshine duration in September is 9.6h.
What is the UV index reading in September in Legnano?
The average daily maximum UV index in September in Legnano is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Legnano, Italy
  • Average high temperature in September: 22.8°C

The warmest month (with the highest average high temperature) is July (27.9°C).
The month with the lowest average high temperature is January (5.6°C).

  • Average low temperature in September: 13.6°C

The month with the highest average low temperature is August (17.7°C).
The coldest month (with the lowest average low temperature) is January (0.6°C).

Average pressure in September
Legnano, Italy
  • Average pressure in September: 1017.3mbar

The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).

Average wind speed in September
Legnano, Italy
  • Average wind speed in September: 5.7km/h

The windiest month (with the highest average wind speed) is March (6.8km/h).
The calmest month (with the lowest average wind speed) is December (5.4km/h).

Average humidity in September
Legnano, Italy
  • Average humidity in September: 72%

The month with the highest relative humidity is November (79%).
The months with the lowest relative humidity are April, July and August (70%).

Average rainfall in September
Legnano, Italy
  • Average rainfall in September: 72mm

The wettest month (with the highest rainfall) is November (172mm).
The driest month (with the least rainfall) is January (33mm).

Average rainfall days in September
Legnano, Italy
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in September
Legnano, Italy
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Legnano, Italy
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Legnano, Italy
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 5h and 6min).

Average sunshine days in September
Legnano, Italy
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (5.9 days).

Average UV index in September
Legnano, Italy
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Legnano, Italy
  • Average cloud cover in September: 28

The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 22).

Average visibility in September
Legnano, 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).

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