September weather forecast
Lignano Riviera, Italy

September

Weather in September

September, the first month of the autumn in Lignano Riviera, is still a warm month, with an average temperature ranging between min 15.4°C (59.7°F) and max 23°C (73.4°F).

Temperature

Lignano Riviera observes a minor decrease in the average high-temperature with the arrival of September, falling from August's moderately hot 28°C (82.4°F) to a still warm 23°C (73.4°F). Lignano Riviera experiences a consistent average temperature of 15.4°C (59.7°F) throughout the nights in September.

Humidity

In Lignano Riviera, the average relative humidity in September is 71%.

Rainfall

In September, in Lignano Riviera, the rain falls for 13.1 days. Throughout September, 88mm (3.46") of precipitation is accumulated. Throughout the year, there are 140.6 rainfall days, and 812mm (31.97") of precipitation is accumulated.

Snowfall

In Lignano Riviera, snow does not fall in April through November.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of the month, sunrise is at 06:29 and sunset at 19:45. On the last day of September, sunrise is at 07:05 and sunset at 18:49 CEST.

Sunshine

In Lignano Riviera, the average sunshine in September is 10.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

What are September temperatures in Lignano Riviera?
In September, the average high-temperature and low-temperature in Lignano Riviera, Italy, are 23°C (73.4°F) and 15.4°C (59.7°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 30°C (86°F).
What is the average humidity in September?
In Lignano Riviera, the average relative humidity in September is 71%.
How much does it rain in September?
In Lignano Riviera, in September, it is raining for 13.1 days, with typically 88mm (3.46") of accumulated precipitation.
When it does not snow?
In Lignano Riviera, snow does not fall in April through November.
What is the average length of the day in September?
The average day length in September is 12h and 32min.
When are sunrise and sunset in September?
On the first day of September, sunrise is at 06:29 and sunset at 19:45. On the last day of the month, sunrise is at 07:05 and sunset at 18:49 CEST.
How many hours of sunshine does Lignano Riviera have in September?
In September, the average sunshine duration is 10.3h.
What is the UV index intensity in September?
In Lignano Riviera, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Lignano Riviera, Italy
  • Average high temperature in September: 23°C

The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (6.9°C).

  • Average low temperature in September: 15.4°C

The month with the highest average low temperature is August (19.2°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).

Average pressure in September
Lignano Riviera, Italy
  • Average pressure in September: 1017.2mbar

The month with the highest atmospheric pressure is December (1019.8mbar).
The months with the lowest atmospheric pressure are May and June (1014.8mbar).

Average wind speed in September
Lignano Riviera, Italy
  • Average wind speed in September: 9.9km/h

The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is June (8.8km/h).

Average humidity in September
Lignano Riviera, Italy
  • Average humidity in September: 71%

The month with the highest relative humidity is November (79%).
The months with the lowest relative humidity are July and August (66%).

Average rainfall in September
Lignano Riviera, Italy
  • Average rainfall in September: 88mm

The wettest month (with the highest rainfall) is November (134mm).
The driest month (with the least rainfall) is January (33mm).

Average rainfall days in September
Lignano Riviera, Italy
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in September
Lignano Riviera, Italy
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Lignano Riviera, Italy
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are February and December (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Lignano Riviera, 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: 10h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The months with the least sunshine are February and November (Average sunshine: 5h and 24min).

Average sunshine days in September
Lignano Riviera, Italy
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in September
Lignano Riviera, 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 and December (UV index 2).

Average cloud cover in September
Lignano Riviera, Italy
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Lignano Riviera, Italy
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).

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