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
The commencement of September indicates a shift in the average high-temperature, receding from August's hot 31.2°C (88.2°F) to a warm 25.4°C (77.7°F). Orvieto's average low-temperature in September is measured at a moderate 15.2°C (59.4°F).Humidity
In Orvieto, the average relative humidity in September is 69%.Rainfall
In Orvieto, in September, it is raining for 12.2 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, there are 137.9 rainfall days, and 479mm (18.86") of precipitation is accumulated.Snowfall
In Orvieto, Italy, snow does not fall in April through December.Daylight
In Orvieto, the average length of the day in September is 12h and 29min.On the first day of September in Orvieto, sunrise is at 06:36 and sunset at 19:45. On the last day of the month, sunrise is at 07:08 and sunset at 18:54 CEST.
Sunshine
The average sunshine in September in Orvieto is 10.6h.UV index
The average daily maximum UV index in September in Orvieto is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What are September temperatures in Orvieto?
What is the average humidity in September in Orvieto?
How many days does it rain in September in Orvieto?
When it does not snow in Orvieto?
How many hours of daylight does Orvieto have in September?
When are sunrise and sunset in September in Orvieto?
How many hours of sunshine does Orvieto have in September?
What is the UV index reading in September in Orvieto?
Average temperature in September
Orvieto, Italy
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (31.2°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 15.2°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (3.1°C).
Average pressure in September
Orvieto, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The months with the lowest atmospheric pressure are April and July (1014mbar).
Average wind speed in September
Orvieto, Italy
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is February (13.8km/h).
The calmest month (with the lowest average wind speed) is July (8.6km/h).
Average humidity in September
Orvieto, Italy
- Average humidity in September: 69%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Orvieto, Italy
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (20mm).
Average rainfall days in September
Orvieto, Italy
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is November (14.1 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in September
Orvieto, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Orvieto, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Orvieto, Italy
- Average daylight in September: 12h and 3min
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 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Orvieto, Italy
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is November (14 days).
Average UV index in September
Orvieto, Italy
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Orvieto, Italy
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Orvieto, Italy
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
Orvieto, Italy
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