September weather forecastOliena, Italy
September
Weather in September
September, the first month of the autumn in Oliena, is still a warm month, with an average temperature fluctuating between 15.5°C (59.9°F) and 24.7°C (76.5°F).Temperature
September brings a minor decrease, with the average high-temperature reducing from a hot 30.3°C (86.5°F) in August to a warm 24.7°C (76.5°F). Oliena encounters a steady low-temperature average of 15.5°C (59.9°F) throughout the month of September.Humidity
In September, the average relative humidity is 69%.Rainfall
In September, in Oliena, the rain falls for 9.8 days. Throughout September, 25mm (0.98") of precipitation is accumulated. In Oliena, Italy, during the entire year, the rain falls for 137.1 days and collects up to 412mm (16.22") of precipitation.Snowfall
April through November are months without snowfall in Oliena.Daylight
In Oliena, the average length of the day in September is 12h and 28min.On the first day of September in Oliena, sunrise is at 06:50 and sunset at 19:54. On the last day of the month, sunrise is at 07:18 and sunset at 19:06 CEST.
Sunshine
In Oliena, the average sunshine in September is 10.1h.UV index
In Oliena, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during September translates into the following guidance:
Exercise prevention - Warding off sunburn is urged. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Oliena, Italy
- Average high temperature in September: 24.7°C
The warmest months (with the highest average high temperature) are July and August (30.3°C).
The month with the lowest average high temperature is January (10.9°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is August (18.5°C).
The coldest month (with the lowest average low temperature) is February (3°C).
Average pressure in September
Oliena, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.7mbar).
The months with the lowest atmospheric pressure are April and November (1014mbar).
Average wind speed in September
Oliena, Italy
- Average wind speed in September: 8.6km/h
The windiest months (with the highest average wind speed) are January and March (12.7km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Oliena, Italy
- Average humidity in September: 69%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (56%).
Average rainfall in September
Oliena, Italy
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (52mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in September
Oliena, Italy
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is July (5.7 days).
Average snowfall in September
Oliena, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (73mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Oliena, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 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
Oliena, Italy
- Average daylight in September: 12h and 30min
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 24min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Oliena, Italy
- Average sunshine days in September: 17 days
The month with the most sunshine days is August (23.7 days).
The month with the least sunshine days is January (10.9 days).
Average UV index in September
Oliena, Italy
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Oliena, Italy
- Average cloud cover in September: 20
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Oliena, Italy
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).





