September weather forecast
Arpaia, Italy

September

Weather in September

September, the first month of the autumn in Arpaia, is also a moderately hot month, with an average temperature fluctuating between 14.7°C (58.5°F) and 24.9°C (76.8°F).

Temperature

September's arrival comes with a decrease in the average high-temperature, moving from a hot 31°C (87.8°F) in August to a moderately hot 24.9°C (76.8°F). Arpaia, in the month of September, anticipates a consistent average low-temperature of 14.7°C (58.5°F).

Humidity

In Arpaia, the average relative humidity in September is 68%.

Rainfall

In September, the rain falls for 12.8 days. Throughout September, 35mm (1.38") of precipitation is accumulated. Throughout the year, in Arpaia, Italy, there are 154.9 rainfall days, and 443mm (17.44") of precipitation is accumulated.

Snowfall

May through October and December are months without snowfall.

Daylight

The average length of the day in September in Arpaia is 12h and 28min.
On the first day of the month, sunrise is at 06:28 and sunset at 19:34. On the last day of September, in Arpaia, Italy, sunrise is at 06:57 and sunset at 18:45 CEST.

Sunshine

In September, the average sunshine in Arpaia, Italy, is 10.5h.

UV index

In September, the average daily maximum UV index in Arpaia is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a regular UV index of 5 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

What is the temperature in September in Arpaia?
The high-temperature, in September, in Arpaia, records 24.9°C (76.8°F), while the low-temperature is 14.7°C (58.5°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 34°C (93.2°F).
What is the average humidity in September in Arpaia?
The average relative humidity in September in Arpaia, Italy, is 68%.
How much does it rain in Arpaia in September?
In Arpaia, Italy, during September, the rain falls for 12.8 days and regularly aggregates up to 35mm (1.38") of precipitation.
When it does not snow in Arpaia?
May through October and December are months without snowfall in Arpaia, Italy.
What is the average length of the day in September in Arpaia?
In Arpaia, Italy, the average day length in September is 12h and 28min.
What time are sunrise and sunset in September in Arpaia?
On the first day of September in Arpaia, sunrise is at 06:28 and sunset at 19:34. On the last day of the month, sunrise is at 06:57 and sunset at 18:45 CEST.
How long on average sun shines in September in Arpaia?
The average sunshine duration in September in Arpaia, Italy, is 10.5h.
What is the UV index reading in September in Arpaia?
The average daily maximum UV index in September in Arpaia is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Arpaia, Italy
  • Average high temperature in September: 24.9°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (9.5°C).

  • Average low temperature in September: 14.7°C

The month with the highest average low temperature is August (17.6°C).
The coldest months (with the lowest average low temperature) are January and February (2.8°C).

Average pressure in September
Arpaia, Italy
  • Average pressure in September: 1015.4mbar

The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).

Average wind speed in September
Arpaia, Italy
  • Average wind speed in September: 8.3km/h

The windiest month (with the highest average wind speed) is February (11.5km/h).
The calmest month (with the lowest average wind speed) is August (7.1km/h).

Average humidity in September
Arpaia, Italy
  • Average humidity in September: 68%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (58%).

Average rainfall in September
Arpaia, Italy
  • Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is November (67mm).
The driest month (with the least rainfall) is August (21mm).

Average rainfall days in September
Arpaia, Italy
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is August (10 days).

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

The month with the highest snowfall is February (7mm).
The months with the least snowfall are May, June, July, August, September, October and December (0mm).

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

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are May, June, July, August, September, October and December (0 days).

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

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 3min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
Arpaia, Italy
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (18.1 days).
The months with the least sunshine days are February and May (11.8 days).

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

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

Average cloud cover in September
Arpaia, Italy
  • Average cloud cover in September: 24

The months with the most cloud cover are January and February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in September
Arpaia, 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, March, April, May, September, October, November and December (9km).

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