September weather forecastSpello, Italy
September
Weather in September
The first month of the autumn, September, is still a warm month in Spello, Italy, with an average temperature varying between 12°C (53.6°F) and 23.1°C (73.6°F).Temperature
September brings a minor decrease, with the average high-temperature reducing from 28.8°C (83.8°F) in August to a still warm 23.1°C (73.6°F). Throughout September nights, Spello registers an average low-temperature of 12°C (53.6°F).Humidity
In September, the average relative humidity in Spello is 71%.Rainfall
In Spello, in September, it is raining for 11.5 days, with typically 32mm (1.26") of accumulated precipitation. In Spello, during the entire year, the rain falls for 164.8 days and collects up to 540mm (21.26") of precipitation.Snowfall
In Spello, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 06:34 and sunset at 19:44. On the last day of September, sunrise is at 07:06 and sunset at 18:52 CEST.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index in Spello is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Spello, Italy
- Average high temperature in September: 23.1°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in September: 12°C
The month with the highest average low temperature is August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (0.8°C).
Average pressure in September
Spello, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is July (1013.6mbar).
Average wind speed in September
Spello, Italy
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is March (11.5km/h).
The calmest month (with the lowest average wind speed) is July (7.7km/h).
Average humidity in September
Spello, Italy
- Average humidity in September: 71%
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Spello, Italy
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is May (84mm).
The driest month (with the least rainfall) is August (21mm).
Average rainfall days in September
Spello, Italy
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is August (8.1 days).
Average snowfall in September
Spello, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (44mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Spello, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Spello, 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 42min
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 42min).
Average sunshine days in September
Spello, Italy
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in September
Spello, Italy
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Spello, Italy
- Average cloud cover in September: 22
The months with the most cloud cover are January and February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Spello, Italy
- Average visibility in September: 9km
The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (9km).
