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 arrival of September indicates a decrease in the average high-temperature, moving from a warm 28.6°C (83.5°F) in August to a still moderately hot 23.6°C (74.5°F). In September, the temperature drops to an average of 13.1°C (55.6°F) at night.Humidity
The average relative humidity in September is 74%.Rainfall
In Diano d'Alba, in September, it is raining for 13.9 days, with typically 51mm (2.01") of accumulated precipitation. In Diano d'Alba, during the entire year, the rain falls for 165 days and collects up to 800mm (31.5") of precipitation.Snowfall
In Diano d'Alba, Italy, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 06:50 and sunset at 20:04. On the last day of the month, sunrise is at 07:25 and sunset at 19:10 CEST.
Sunshine
The average sunshine in September is 9.5h.UV index
In Diano d'Alba, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 5 in September transforms into this advice:
Take precautions - Protection against sunburn is recommended. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Diano d'Alba in September?
What is the average humidity in September in Diano d'Alba?
How many days does it rain in September in Diano d'Alba?
When it does not snow in Diano d'Alba?
How many hours of daylight does Diano d'Alba have in September?
When are sunrise and sunset in September in Diano d'Alba?
How long on average sun shines in September in Diano d'Alba?
How high is the UV index in September in Diano d'Alba?
Average temperature in September
Diano d'Alba, Italy
- Average high temperature in September: 23.6°C
The warmest month (with the highest average high temperature) is July (29.1°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in September: 13.1°C
The month with the highest average low temperature is August (16.4°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure in September
Diano d'Alba, Italy
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is April (1014.2mbar).
Average wind speed in September
Diano d'Alba, Italy
- Average wind speed in September: 5.1km/h
The windiest month (with the highest average wind speed) is April (6.4km/h).
The calmest month (with the lowest average wind speed) is December (4.8km/h).
Average humidity in September
Diano d'Alba, Italy
- Average humidity in September: 74%
The month with the highest relative humidity is November (83%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in September
Diano d'Alba, Italy
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is November (114mm).
The driest month (with the least rainfall) is January (28mm).
Average rainfall days in September
Diano d'Alba, Italy
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Diano d'Alba, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (102mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Diano d'Alba, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4 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
Diano d'Alba, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 4h and 54min).
Average sunshine days in September
Diano d'Alba, Italy
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in September
Diano d'Alba, Italy
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Diano d'Alba, Italy
- Average cloud cover in September: 27
The month with the most cloud cover is November (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 20).
Average visibility in September
Diano d'Alba, Italy
- Average visibility in September: 9km
The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).
