September weather forecastLierna, Italy
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Lierna, Italy, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 9°C (48.2°F).Temperature
A subtle shift in Lierna's weather is observed as August turns into September, with the average high temperature reducing from a pleasant 22.7°C (72.9°F) to an enjoyable 18.3°C (64.9°F). The average temperature drops to a frosty 9°C (48.2°F) during the night in the month of September.Humidity
In September, the average relative humidity in Lierna is 79%.Rainfall
In September, in Lierna, the rain falls for 14.8 days. Throughout September, 74mm (2.91") of precipitation is accumulated. Throughout the year, in Lierna, there are 162.7 rainfall days, and 1310mm (51.57") of precipitation is accumulated.Snowfall
In Lierna, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 06:44 and sunset at 20:01. On the last day of September, sunrise is at 07:20 and sunset at 19:04 CEST.
Sunshine
In Lierna, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lierna, Italy
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (3.1°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (12.5°C).
The coldest month (with the lowest average low temperature) is January (-3.1°C).
Average pressure in September
Lierna, Italy
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The months with the lowest atmospheric pressure are April and May (1015mbar).
Average wind speed in September
Lierna, Italy
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is July (7.1km/h).
The calmest month (with the lowest average wind speed) is November (5.7km/h).
Average humidity in September
Lierna, Italy
- Average humidity in September: 79%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is December (74%).
Average rainfall in September
Lierna, Italy
- Average rainfall in September: 74mm
The wettest month (with the highest rainfall) is November (173mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in September
Lierna, Italy
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is May (22.1 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Lierna, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (491mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Lierna, Italy
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (11.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Lierna, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in September
Lierna, Italy
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is June (6.8 days).
Average UV index in September
Lierna, Italy
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Lierna, Italy
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Lierna, Italy
- Average visibility in September: 8km
The months with the highest visibility are January, April, May, June, July, August and December (9km).
The months with the lowest visibility are February, March, September, October and November (8km).
