September weather forecastPienza, Italy
September
Weather in September
September, the first month of the autumn in Pienza, is also a moderately hot month, with an average temperature fluctuating between 13.8°C (56.8°F) and 24.7°C (76.5°F).Temperature
With September's arrival, Pienza's weather changes as the average high-temperature falls from a tropical 30.3°C (86.5°F) in August to a moderately hot 24.7°C (76.5°F). In Pienza, September's nights observe an average temperature dip to a mild 13.8°C (56.8°F).Humidity
The average relative humidity in September is 71%.Rainfall
In Pienza, during September, the rain falls for 10.5 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 140.1 rainfall days, and 556mm (21.89") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 06:38 and sunset at 19:48. On the last day of the month, sunrise is at 07:10 and sunset at 18:56 CEST.
Sunshine
In September, the average sunshine is 10.5h.UV index
In Pienza, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pienza, Italy
- Average high temperature in September: 24.7°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is August (17.2°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Pienza, 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 (1013.7mbar).
Average wind speed in September
Pienza, Italy
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is February (12.4km/h).
The calmest month (with the lowest average wind speed) is July (7.7km/h).
Average humidity in September
Pienza, Italy
- Average humidity in September: 71%
The month with the highest relative humidity is November (85%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Pienza, Italy
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is July (29mm).
Average rainfall days in September
Pienza, Italy
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is August (7.7 days).
Average snowfall in September
Pienza, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (104mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Pienza, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 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
Pienza, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in September
Pienza, Italy
- Average sunshine days in September: 18 days
The month with the most sunshine days is August (22.1 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Pienza, 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
Pienza, Italy
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Pienza, Italy
- Average visibility in September: 9km
The months with the highest visibility are July and August (10km).
The month with the lowest visibility is November (8km).
