September weather forecastStienta, Italy

September

Weather in September

September, the first month of the autumn in Stienta, is also a moderately hot month, with an average temperature varying between 25.5°C (77.9°F) and 16.3°C (61.3°F).

Temperature

September's arrival corresponds with a decrease in average high-temperatures, from August's tropical 31°C (87.8°F) to a moderately hot 25.5°C (77.9°F). Nighttime temperatures in Stienta, Italy, consistently average an enjoyable 16.3°C (61.3°F) during September.

Humidity

In September, the average relative humidity is 68%.

Rainfall

In Stienta, in September, during 11.8 rainfall days, 45mm (1.77") of precipitation is typically accumulated. In Stienta, during the entire year, the rain falls for 144.3 days and collects up to 498mm (19.61") of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Stienta, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 06:36 and sunset at 19:50. On the last day of September, in Stienta, sunrise is at 07:11 and sunset at 18:56 CEST.

Sunshine

In September, the average sunshine in Stienta is 10.3h.

UV index

In September, the average daily maximum UV index in Stienta is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

Stienta in September has an average high-temperature of 25.5°C (77.9°F) and an average low-temperature of 16.3°C (61.3°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 35°C (95°F).

The average relative humidity in September in Stienta, Italy, is 68%.

In Stienta, Italy, in September, it is raining for 11.8 days, with typically 45mm (1.77") of accumulated precipitation.

April through November are months without snowfall in Stienta.

In Stienta, the average day length in September is 12h and 31min.

On the first day of September, sunrise is at 06:36 and sunset at 19:50. On the last day of the month, sunrise is at 07:11 and sunset at 18:56 CEST.

In Stienta, the average sunshine duration in September is 10.3h.

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes 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
Stienta, Italy

  • Average high temperature in September: 25.5°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (7.1°C).

  • Average low temperature in September: 16.3°C

The month with the highest average low temperature is August (19.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).

Average pressure in September
Stienta, Italy

  • Average pressure in September: 1016.1mbar

The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).

Average wind speed in September
Stienta, Italy

  • Average wind speed in September: 7.5km/h

The windiest month (with the highest average wind speed) is March (9.3km/h).
The calmest month (with the lowest average wind speed) is August (7.2km/h).

Average humidity in September
Stienta, Italy

  • Average humidity in September: 68%

The month with the highest relative humidity is November (81%).
The month with the lowest relative humidity is August (62%).

Average rainfall in September
Stienta, Italy

  • Average rainfall in September: 45mm

The wettest month (with the highest rainfall) is May (62mm).
The driest month (with the least rainfall) is January (22mm).

Average rainfall days in September
Stienta, Italy

  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is December (8.3 days).

Average snowfall in September
Stienta, Italy

  • Average snowfall in September: 0mm

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

Average snowfall days in September
Stienta, Italy

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Stienta, Italy

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 10h and 18min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in September
Stienta, Italy

  • Average sunshine days in September: 16 days

The month with the most sunshine days is December (19.7 days).
The months with the least sunshine days are May and June (11.4 days).

Average UV index in September
Stienta, Italy

  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Stienta, Italy

  • Average cloud cover in September: 24

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in September
Stienta, Italy

  • Average visibility in September: 10km

The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).