September weather forecastSarno, Italy
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Sarno, Italy, with temperature in the range of an average low of 18.6°C (65.5°F) and an average high of 25.5°C (77.9°F).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a tropical 30.2°C (86.4°F) in August to a warm 25.5°C (77.9°F). The low-temperature average for Sarno during September stands at an enjoyable 18.6°C (65.5°F).Humidity
In Sarno, Italy, the average relative humidity in September is 65%.Rainfall
In Sarno, during September, the rain falls for 12.5 days and regularly aggregates up to 48mm (1.89") of precipitation. Throughout the year, in Sarno, Italy, there are 149.6 rainfall days, and 614mm (24.17") of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
In September, the average length of the day in Sarno, Italy, is 12h and 28min.On the first day of September in Sarno, sunrise is at 06:28 and sunset at 19:33. On the last day of the month, sunrise is at 06:57 and sunset at 18:45 CEST.
Sunshine
The average sunshine in September in Sarno, Italy, is 10.9h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sarno, Italy
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (11.7°C).
- Average low temperature in September: 18.6°C
The month with the highest average low temperature is August (21.6°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).
Average pressure in September
Sarno, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed in September
Sarno, Italy
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is February (13.1km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).
Average humidity in September
Sarno, Italy
- Average humidity in September: 65%
The months with the highest relative humidity are January and November (75%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Sarno, Italy
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is November (122mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days in September
Sarno, Italy
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is January (15.6 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in September
Sarno, Italy
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (3mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Sarno, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 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
Sarno, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 54min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Sarno, Italy
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is July (22.4 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Sarno, Italy
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Sarno, Italy
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
Sarno, Italy
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





