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
September witnesses a gentle descent in average high-temperature, descending from August's moderately hot 28.8°C (83.8°F) to a still warm 23.9°C (75°F). In September, Costanzana experiences an average nighttime temperature of 13.9°C (57°F).Humidity
The average relative humidity in September in Costanzana is 75%.Rainfall
In Costanzana, during September, the rain falls for 14.1 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, in Costanzana, there are 157.1 rainfall days, and 614mm (24.17") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Costanzana.Daylight
In September, the average length of the day in Costanzana is 12h and 32min.On the first day of the month, sunrise is at 06:48 and sunset at 20:03. On the last day of September, sunrise is at 07:24 and sunset at 19:08 CEST.
Sunshine
The average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Guard yourself - Avoiding sunburn is suggested. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What are the temperatures in Costanzana in September?
What is the average humidity in September in Costanzana?
How many days does it rain in September in Costanzana?
When it does not snow in Costanzana?
What is the average length of the day in September in Costanzana?
When is the sunrise / sunset in September in Costanzana?
How many hours of sunshine does Costanzana have in September?
What is the UV index intensity in September in Costanzana?
Average temperature in September
Costanzana, Italy
- Average high temperature in September: 23.9°C
The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Costanzana, Italy
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is April (1014.4mbar).
Average wind speed in September
Costanzana, Italy
- Average wind speed in September: 5.1km/h
The windiest month (with the highest average wind speed) is April (6.6km/h).
The calmest months (with the lowest average wind speed) are September and December (5.1km/h).
Average humidity in September
Costanzana, Italy
- Average humidity in September: 75%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Costanzana, Italy
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is November (103mm).
The driest month (with the least rainfall) is January (15mm).
Average rainfall days in September
Costanzana, Italy
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Costanzana, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (32mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Costanzana, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Costanzana, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is November (Average sunshine: 4h and 54min).
Average sunshine days in September
Costanzana, Italy
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is December (20.9 days).
The month with the least sunshine days is July (7.7 days).
Average UV index in September
Costanzana, 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, February, November and December (UV index 2).
Average cloud cover in September
Costanzana, Italy
- Average cloud cover in September: 27
The month with the most cloud cover is November (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 20).
Average visibility in September
Costanzana, Italy
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
Costanzana, Italy
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