September weather forecast
San Casciano in Val di Pesa, Italy

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in San Casciano in Val di Pesa, Italy, with an average temperature fluctuating between 12.7°C (54.9°F) and 23.7°C (74.7°F).

Temperature

As August transitions into September, San Casciano in Val di Pesa sees a drop in the average high-temperature, transitioning from a moderately hot 29.6°C (85.3°F) to a still warm 23.7°C (74.7°F). An average low-temperature of 12.7°C (54.9°F) is common during the nights of September.

Humidity

In San Casciano in Val di Pesa, the average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 12.5 days. Throughout September, 43mm (1.69") of precipitation is accumulated. In San Casciano in Val di Pesa, during the entire year, the rain falls for 164.7 days and collects up to 598mm (23.54") of precipitation.

Snowfall

In San Casciano in Val di Pesa, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 30min.
On the first day of the month, sunrise is at 06:39 and sunset at 19:50. On the last day of September, sunrise is at 07:12 and sunset at 18:57 CEST.

Sunshine

In San Casciano in Val di Pesa, the average sunshine in September is 10.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

What are September temperatures?
An average high-temperature, in September, in San Casciano in Val di Pesa, is 23.7°C (74.7°F) and the average low-temperature is 12.7°C (54.9°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 33°C (91.4°F).
What is the average humidity in September?
In September, the average relative humidity is 72%.
How many days does it rain in September?
In San Casciano in Val di Pesa, in September, during 12.5 rainfall days, 43mm (1.69") of precipitation is typically accumulated.
When it does not snow?
In San Casciano in Val di Pesa, snow does not fall in April through November.
How many hours of daylight does San Casciano in Val di Pesa have in September?
In September, the average day length in San Casciano in Val di Pesa is 12h and 30min.
When is the sunrise / sunset in September?
In September, on the first day of the month, sunrise is at 06:39 and sunset at 19:50. On the last day of the month, sunrise is at 07:12 and sunset at 18:57 CEST.
How many hours of sunshine does San Casciano in Val di Pesa have in September?
The average sunshine duration in September is 10.2h.
What is the UV index intensity in September?
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
San Casciano in Val di Pesa, Italy
  • Average high temperature in September: 23.7°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (7.5°C).

  • Average low temperature in September: 12.7°C

The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average pressure in September
San Casciano in Val di Pesa, Italy
  • Average pressure in September: 1015.5mbar

The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).

Average wind speed in September
San Casciano in Val di Pesa, Italy
  • Average wind speed in September: 8.1km/h

The windiest month (with the highest average wind speed) is March (11km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).

Average humidity in September
San Casciano in Val di Pesa, Italy
  • Average humidity in September: 72%

The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (63%).

Average rainfall in September
San Casciano in Val di Pesa, Italy
  • Average rainfall in September: 43mm

The wettest month (with the highest rainfall) is November (80mm).
The driest month (with the least rainfall) is August (33mm).

Average rainfall days in September
San Casciano in Val di Pesa, Italy
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is August (10.9 days).

Average snowfall in September
San Casciano in Val di Pesa, Italy
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
San Casciano in Val di Pesa, Italy
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.2 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
San Casciano in Val di Pesa, Italy
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
San Casciano in Val di Pesa, Italy
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is August (16.6 days).
The month with the least sunshine days is May (9.1 days).

Average UV index in September
San Casciano in Val di Pesa, 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 and December (UV index 2).

Average cloud cover in September
San Casciano in Val di Pesa, Italy
  • Average cloud cover in September: 25

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in September
San Casciano in Val di Pesa, Italy
  • Average visibility in September: 9km

The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).

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