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
September's arrival corresponds with a decrease in average high-temperatures, from August's moderately hot 29.6°C (85.3°F) to a still warm 23.7°C (74.7°F). In September, Lastra a Signa encounters an average low-temperature of 12.7°C (54.9°F) during the night.Humidity
The average relative humidity in September is 72%.Rainfall
In Lastra a Signa, during September, the rain falls for 12.5 days and regularly aggregates up to 43mm (1.69") of precipitation. In Lastra a Signa, during the entire year, the rain falls for 164.7 days and collects up to 598mm (23.54") of precipitation.Snowfall
April through November are months without snowfall in Lastra a Signa.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 06:39 and sunset at 19:51. On the last day of September, sunrise is at 07:12 and sunset at 18:58 CEST.
Sunshine
The average sunshine in September in Lastra a Signa, Italy, is 10.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. When the Sun is at its strongest around midday, find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Lastra a Signa?
What is the average humidity in September in Lastra a Signa?
How many days does it rain in September in Lastra a Signa?
When it does not snow in Lastra a Signa?
How many hours of daylight does Lastra a Signa have in September?
When are sunrise and sunset in September in Lastra a Signa?
How long on average sun shines in September in Lastra a Signa?
What is the UV index reading in September in Lastra a Signa?
Average temperature in September
Lastra a Signa, Italy
- Average high temperature in September: 23.7°C
The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Lastra a Signa, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
Lastra a Signa, Italy
- Average wind speed in September: 8.1km/h
The windiest month (with the highest average wind speed) is March (11km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in September
Lastra a Signa, Italy
- Average humidity in September: 72%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Lastra a Signa, Italy
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is November (80mm).
The driest month (with the least rainfall) is August (33mm).
Average rainfall days in September
Lastra a Signa, Italy
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is August (10.9 days).
Average snowfall in September
Lastra a Signa, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Lastra a Signa, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 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
Lastra a Signa, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in September
Lastra a Signa, Italy
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is August (16.6 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in September
Lastra a Signa, 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 and December (UV index 2).
Average cloud cover in September
Lastra a Signa, Italy
- Average cloud cover in September: 25
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Lastra a Signa, 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).
