September weather forecastAtri, Italy
September
Weather in September
September, the first month of the autumn in Atri, is still a pleasant month, with an average temperature ranging between min 13.5°C (56.3°F) and max 22.5°C (72.5°F).Temperature
In the transition to September, Atri observes a drop in the average high-temperature, moving from a moderately hot 27.7°C (81.9°F) in August to a pleasant 22.5°C (72.5°F). Atri cools down to an average low-temperature of 13.5°C (56.3°F) throughout the month of September.Humidity
In Atri, the average relative humidity in September is 71%.Rainfall
In September, the rain falls for 14.3 days. Throughout September, 49mm (1.93") of precipitation is accumulated. In Atri, Italy, during the entire year, the rain falls for 191.5 days and collects up to 769mm (30.28") of precipitation.Snowfall
In Atri, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 06:29 and sunset at 19:38. On the last day of September, sunrise is at 07:00 and sunset at 18:47 CEST.
Sunshine
The average sunshine in September in Atri, Italy, is 10.8h.UV index
In Atri, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Atri, Italy
- Average high temperature in September: 22.5°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is August (17.2°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Atri, 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 (1013.6mbar).
Average wind speed in September
Atri, Italy
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is February (8.9km/h).
The calmest months (with the lowest average wind speed) are June and July (7.1km/h).
Average humidity in September
Atri, Italy
- Average humidity in September: 71%
The months with the highest relative humidity are January and November (80%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Atri, Italy
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is May (100mm).
The driest month (with the least rainfall) is August (46mm).
Average rainfall days in September
Atri, Italy
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is August (12.6 days).
Average snowfall in September
Atri, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (86mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Atri, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Atri, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Atri, Italy
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is August (15.8 days).
The month with the least sunshine days is May (6.9 days).
Average UV index in September
Atri, 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
Atri, Italy
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Atri, Italy
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, October, November and December (9km).
