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
September
Weather in September
Temperature
Onset of September comes with a temperature decline, the average high falling from a warm 28.5°C (83.3°F) in August to a pleasant 22.7°C (72.9°F). The nights of September anticipate an average low-temperature of 11°C (51.8°F).Humidity
The average relative humidity in September is 72%.Rainfall
In Castelnuovo di Farfa, in September, during 14.2 rainfall days, 41mm (1.61") of precipitation is typically accumulated. In Castelnuovo di Farfa, during the entire year, the rain falls for 160.4 days and collects up to 553mm (21.77") of precipitation.Snowfall
In Castelnuovo di Farfa, 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 19:42. On the last day of September, sunrise is at 07:05 and sunset at 18:52 CEST.
Sunshine
The average sunshine in September in Castelnuovo di Farfa is 10.7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Guard yourself - Avoiding sunburn is suggested. 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
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Castelnuovo di Farfa have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Castelnuovo di Farfa have in September?
What is the UV index reading in September?
Average temperature in September
Castelnuovo di Farfa, Italy
- Average high temperature in September: 22.7°C
The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is January (0.1°C).
Average pressure in September
Castelnuovo di Farfa, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed in September
Castelnuovo di Farfa, Italy
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (9.6km/h).
The calmest month (with the lowest average wind speed) is August (6.6km/h).
Average humidity in September
Castelnuovo di Farfa, Italy
- Average humidity in September: 72%
The months with the highest relative humidity are January and November (83%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Castelnuovo di Farfa, Italy
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is November (74mm).
The driest month (with the least rainfall) is August (35mm).
Average rainfall days in September
Castelnuovo di Farfa, Italy
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is August (9.3 days).
Average snowfall in September
Castelnuovo di Farfa, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (33mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Castelnuovo di Farfa, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Castelnuovo di Farfa, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 48min).
Average sunshine days in September
Castelnuovo di Farfa, Italy
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is August (19 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in September
Castelnuovo di Farfa, 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
Castelnuovo di Farfa, Italy
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Castelnuovo di Farfa, Italy
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (9km).
