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
Saronno's progression into September includes a drop in the average high-temperature, from a warm 28.5°C (83.3°F) in August to a still moderately hot 23.5°C (74.3°F). The nighttime temperature in Saronno, during September, averages of 14.8°C (58.6°F).Humidity
In September, the average relative humidity in Saronno is 72%.Rainfall
In Saronno, during September, the rain falls for 12.1 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, in Saronno, there are 157.4 rainfall days, and 996mm (39.21") of precipitation is accumulated.Snowfall
In Saronno, Italy, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 06:45 and sunset at 20:01. On the last day of the month, sunrise is at 07:21 and sunset at 19:05 CEST.
Sunshine
In Saronno, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September in Saronno is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Saronno?
What is the average humidity in September in Saronno?
How much does it rain in Saronno in September?
When it does not snow in Saronno?
What is the average length of the day in September in Saronno?
When is the sunrise / sunset in September in Saronno?
How many hours of sunshine does Saronno have in September?
How high is the UV index in September in Saronno?
Average temperature in September
Saronno, Italy
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is July (28.6°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 14.8°C
The month with the highest average low temperature is August (18.6°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in September
Saronno, Italy
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is December (1020mbar).
The months with the lowest atmospheric pressure are April and May (1014.7mbar).
Average wind speed in September
Saronno, Italy
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is April (7.3km/h).
The calmest month (with the lowest average wind speed) is December (5.7km/h).
Average humidity in September
Saronno, Italy
- Average humidity in September: 72%
The month with the highest relative humidity is November (79%).
The months with the lowest relative humidity are July and August (69%).
Average rainfall in September
Saronno, Italy
- Average rainfall in September: 66mm
The wettest month (with the highest rainfall) is November (152mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in September
Saronno, Italy
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Saronno, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (32mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Saronno, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.3 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
Saronno, 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 4h and 48min).
Average sunshine days in September
Saronno, Italy
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in September
Saronno, 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, February, November and December (UV index 2).
Average cloud cover in September
Saronno, Italy
- Average cloud cover in September: 30
The month with the most cloud cover is November (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 21).
Average visibility in September
Saronno, Italy
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
