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
The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 29.5°C (85.1°F) to a still warm 26°C (78.8°F). Nighttime temperature in San Donaci, Italy, sees a small decrement from daytime highs, dipping to an average of 21.7°C (71.1°F) during September.Humidity
In San Donaci, the average relative humidity in September is 64%.Rainfall
In San Donaci, in September, it is raining for 10 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 124.4 rainfall days, and 396mm (15.59") of precipitation is accumulated.Snowfall
In San Donaci, Italy, snow does not fall in February through November.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in San Donaci, sunrise is at 06:16 and sunset at 19:20. On the last day of the month, sunrise is at 06:44 and sunset at 18:32 CEST.
Sunshine
The average sunshine in September in San Donaci, Italy, is 10.4h.UV index
In San Donaci, Italy, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for San Donaci in September?
What is the average humidity in September in San Donaci?
How much does it rain in San Donaci in September?
When it does not snow in San Donaci?
How many hours of daylight does San Donaci have in September?
What time are sunrise and sunset in September in San Donaci?
How long on average sun shines in September in San Donaci?
What is the UV index intensity in September in San Donaci?
Average temperature in September
San Donaci, Italy
- Average high temperature in September: 26°C
The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (12.7°C).
- Average low temperature in September: 21.7°C
The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (9.5°C).
Average pressure in September
San Donaci, Italy
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is December (1017.7mbar).
The month with the lowest atmospheric pressure is July (1012.3mbar).
Average wind speed in September
San Donaci, Italy
- Average wind speed in September: 15.4km/h
The windiest month (with the highest average wind speed) is February (23.3km/h).
The calmest month (with the lowest average wind speed) is September (15.4km/h).
Average humidity in September
San Donaci, Italy
- Average humidity in September: 64%
The month with the highest relative humidity is November (73%).
The month with the lowest relative humidity is July (61%).
Average rainfall in September
San Donaci, Italy
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is November (62mm).
The driest month (with the least rainfall) is August (7mm).
Average rainfall days in September
San Donaci, Italy
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is January (14.1 days).
The month with the least rainy days is August (2.9 days).
Average snowfall in September
San Donaci, Italy
- Average snowfall in September: 0mm
The months with the highest snowfall are January and December (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
San Donaci, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
San Donaci, 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 2min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
San Donaci, Italy
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is August (25.2 days).
The month with the least sunshine days is February (12.9 days).
Average UV index in September
San Donaci, Italy
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
San Donaci, Italy
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in September
San Donaci, 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).
