September weather forecastAcerenza, Italy

September

Weather in September

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

Temperature

September brings a drop in Acerenza's average high-temperature, falling from 29.3°C (84.7°F) in August to a still moderately hot 23.4°C (74.1°F). Nighttime temperature in Acerenza dips to a mean of 13.3°C (55.9°F) during September.

Humidity

In Acerenza, the average relative humidity in September is 69%.

Rainfall

In Acerenza, during September, the rain falls for 16 days and regularly aggregates up to 52mm (2.05") of precipitation. In Acerenza, during the entire year, the rain falls for 179 days and collects up to 696mm (27.4") of precipitation.

Snowfall

In Acerenza, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 06:23 and sunset at 19:28. On the last day of September, sunrise is at 06:52 and sunset at 18:39 CEST.

Sunshine

In September, the average sunshine in Acerenza is 10.2h.

UV index

In Acerenza, Italy, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

Acerenza in September has an average high-temperature of 23.4°C (74.1°F) and an average low-temperature of 13.3°C (55.9°F). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 31°C (87.8°F).

In September, the average relative humidity is 69%.

In September, the rain falls for 16 days. Throughout September, 52mm (2.05") of precipitation is accumulated.

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

The average day length in September in Acerenza is 12h and 28min.

In September, on the first day of the month, sunrise is at 06:23 and sunset at 19:28. On the last day of the month, in Acerenza, Italy, sunrise is at 06:52 and sunset at 18:39 CEST.

The average sunshine duration in September is 10.2h.

In Acerenza, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Acerenza, 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
Acerenza, 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
Acerenza, 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
Acerenza, 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
Acerenza, 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
Acerenza, 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
Acerenza, 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
Acerenza, 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
Acerenza, Italy

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 10h and 12min

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
Acerenza, 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
Acerenza, 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
Acerenza, 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
Acerenza, 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).