September weather forecast
Castelmezzano, Italy

September

Weather in September

September, the first month of the autumn in Castelmezzano, is still a warm month, with an average temperature ranging between max 23.4°C (74.1°F) and min 13.3°C (55.9°F).

Temperature

Transition into September marks a drop in the average high-temperature, moving from a moderately hot 29.3°C (84.7°F) in August to a still warm 23.4°C (74.1°F). Castelmezzano reports an average nighttime low-temperature of 13.3°C (55.9°F) in September.

Humidity

In September, the average relative humidity is 69%.

Rainfall

In Castelmezzano, in September, it is raining for 16 days, with typically 52mm (2.05") of accumulated precipitation. In Castelmezzano, during the entire year, the rain falls for 179 days and collects up to 696mm (27.4") of precipitation.

Snowfall

In Castelmezzano, Italy, snow does not fall in May through October.

Daylight

In September, the average length of the day in Castelmezzano is 12h and 28min.
On the first day of September in Castelmezzano, sunrise is at 06:23 and sunset at 19:27. On the last day of the month, sunrise is at 06:51 and sunset at 18:39 CEST.

Sunshine

The average sunshine in September is 10.2h.

UV index

In September, the average daily maximum UV index in Castelmezzano is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Heed the precautions - It is counselled to guard against solar damage. To guard against the harmful effects of the Sun, minimize exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

What is the usual temperature for Castelmezzano in September?
In September, in Castelmezzano, the average high-temperature is 23.4°C (74.1°F), and the average low-temperature is 13.3°C (55.9°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 31°C (87.8°F).
What is the average humidity in September in Castelmezzano?
In September, the average relative humidity in Castelmezzano is 69%.
How much does it rain in Castelmezzano in September?
In Castelmezzano, Italy, during September, the rain falls for 16 days and regularly aggregates up to 52mm (2.05") of precipitation.
When it does not snow in Castelmezzano?
May through October are months without snowfall in Castelmezzano.
What is the average length of the day in September in Castelmezzano?
In Castelmezzano, the average day length in September is 12h and 28min.
When is the sunrise / sunset in September in Castelmezzano?
On the first day of September in Castelmezzano, sunrise is at 06:23 and sunset at 19:27. On the last day of the month, sunrise is at 06:51 and sunset at 18:39 CEST.
How many hours of sunshine does Castelmezzano have in September?
In Castelmezzano, Italy, the average sunshine duration in September is 10.2h.
How high is the UV index in September in Castelmezzano?
In September, the average daily maximum UV index in Castelmezzano, Italy, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Castelmezzano, Italy
  • Average high temperature in September: 23.4°C

The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (7.8°C).

  • Average low temperature in September: 13.3°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average pressure in September
Castelmezzano, Italy
  • Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is December (1018.1mbar).
The month with the lowest atmospheric pressure is July (1013.3mbar).

Average wind speed in September
Castelmezzano, Italy
  • Average wind speed in September: 7.6km/h

The windiest month (with the highest average wind speed) is February (11.6km/h).
The calmest month (with the lowest average wind speed) is August (6.9km/h).

Average humidity in September
Castelmezzano, Italy
  • Average humidity in September: 69%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (58%).

Average rainfall in September
Castelmezzano, Italy
  • Average rainfall in September: 52mm

The wettest month (with the highest rainfall) is May (80mm).
The driest month (with the least rainfall) is December (43mm).

Average rainfall days in September
Castelmezzano, Italy
  • Average rainfall days in September: 16 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is December (11.9 days).

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

The month with the highest snowfall is February (121mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in September
Castelmezzano, Italy
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is July (16.8 days).
The month with the least sunshine days is May (9.5 days).

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

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

Average cloud cover in September
Castelmezzano, Italy
  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 14).

Average visibility in September
Castelmezzano, Italy
  • Average visibility in September: 9km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February and November (8km).

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