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.

Frequently asked questions

The average high-temperature and low-temperature in Oliena during September are 24.7°C (76.5°F) and 15.5°C (59.9°F) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 33°C (91.4°F).

In Oliena, Italy, the average relative humidity in September is 69%.

In September, in Oliena, Italy, the rain falls for 9.8 days. Throughout September, 25mm (0.98") of precipitation is accumulated.

April through November are months without snowfall in Oliena, Italy.

The average day length in September is 12h and 28min.

On the first day of September in Oliena, Italy, 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.

The average sunshine duration in September in Oliena is 10.1h.

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).