September weather forecastFortezza, Italy
September
Weather in September
September, the first month of the autumn in Fortezza, is still a refreshing month, with an average temperature ranging between max 15.6°C (60.1°F) and min 4.5°C (40.1°F).Temperature
September signifies a minor drop in average high-temperature, transitioning from 19.9°C (67.8°F) in August to a still refreshing 15.6°C (60.1°F). Fortezza's average low-temperature during September nights is observed to be a cold 4.5°C (40.1°F).Humidity
The average relative humidity in September in Fortezza, Italy, is 80%.Rainfall
In Fortezza, Italy, in September, it is raining for 10.6 days, with typically 19mm (0.75") of accumulated precipitation. In Fortezza, during the entire year, the rain falls for 142.1 days and collects up to 301mm (11.85") of precipitation.Snowfall
In Fortezza, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 06:33 and sunset at 19:52. On the last day of the month, sunrise is at 07:11 and sunset at 18:55 CEST.
Sunshine
In Fortezza, the average sunshine in September is 10h.UV index
The average daily maximum UV index in September in Fortezza is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fortezza, Italy
- Average high temperature in September: 15.6°C
The warmest month (with the highest average high temperature) is July (20.2°C).
The month with the lowest average high temperature is January (-1.1°C).
- Average low temperature in September: 4.5°C
The month with the highest average low temperature is August (7.5°C).
The coldest month (with the lowest average low temperature) is January (-10°C).
Average pressure in September
Fortezza, Italy
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is May (1015.3mbar).
Average wind speed in September
Fortezza, Italy
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is February (7.2km/h).
The calmest months (with the lowest average wind speed) are August and November (5.6km/h).
Average humidity in September
Fortezza, Italy
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Fortezza, Italy
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is August (42mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in September
Fortezza, Italy
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Fortezza, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is November (124mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Fortezza, Italy
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Fortezza, Italy
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in September
Fortezza, Italy
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Fortezza, Italy
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in September
Fortezza, Italy
- Average cloud cover in September: 36
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Fortezza, Italy
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, May, June, July, August, October and December (8km).
The months with the lowest visibility are April, September and November (7km).
