Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A mild drop in Sieti's average high-temperature is observed in September, transitioning from 29.4°C (84.9°F) in August to a still moderately hot 25.2°C (77.4°F). During the month of September, an average temperature of 18.2°C (64.8°F) is noted during the nights in Sieti.Humidity
In September, the average relative humidity in Sieti, Italy, is 66%.Rainfall
In Sieti, in September, during 12 rainfall days, 46mm (1.81") of precipitation is typically accumulated. Throughout the year, in Sieti, there are 148 rainfall days, and 605mm (23.82") of precipitation is accumulated.Snowfall
In Sieti, snow does not fall in March through December.Daylight
In Sieti, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 06:27 and sunset at 19:32. On the last day of September, sunrise is at 06:56 and sunset at 18:44 CEST.
Sunshine
The average sunshine in September is 10.9h.UV index
In Sieti, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the usual temperature for Sieti in September?
What is the average humidity in September in Sieti?
How much does it rain in Sieti in September?
When it does not snow in Sieti?
What is the average length of the day in September in Sieti?
When is the sunrise / sunset in September in Sieti?
How many hours of sunshine does Sieti have in September?
What is the UV index reading in September in Sieti?
Average temperature in September
Sieti, Italy
- Average high temperature in September: 25.2°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (11.3°C).
- Average low temperature in September: 18.2°C
The month with the highest average low temperature is August (21.2°C).
The coldest month (with the lowest average low temperature) is January (6.7°C).
Average pressure in September
Sieti, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed in September
Sieti, Italy
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is February (13.3km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).
Average humidity in September
Sieti, Italy
- Average humidity in September: 66%
The months with the highest relative humidity are January, February and November (75%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Sieti, Italy
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is November (120mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in September
Sieti, Italy
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is November (15.5 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in September
Sieti, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Sieti, 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 March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sieti, 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 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in September
Sieti, Italy
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in September
Sieti, 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, February and December (UV index 3).
Average cloud cover in September
Sieti, Italy
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Sieti, Italy
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Sieti, Italy
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