September weather forecastPorlezza, Italy
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Porlezza, Italy, with an average temperature fluctuating between 18.6°C (65.5°F) and 8.7°C (47.7°F).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a moderately hot 23°C (73.4°F) in August to a refreshing 18.6°C (65.5°F). During the month of September, the temperature falls to an average of 8.7°C (47.7°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Porlezza, in September, it is raining for 17.1 days, with typically 89mm (3.5") of accumulated precipitation. Throughout the year, there are 190.8 rainfall days, and 1414mm (55.67") of precipitation is accumulated.Snowfall
In Porlezza, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 06:44 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 Porlezza, the average sunshine in September is 9.2h.UV index
In Porlezza, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Porlezza, Italy
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is July (23.9°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 8.7°C
The months with the highest average low temperature are July and August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).
Average pressure in September
Porlezza, Italy
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1020.4mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Porlezza, Italy
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is July (7.6km/h).
The calmest month (with the lowest average wind speed) is November (6km/h).
Average humidity in September
Porlezza, Italy
- Average humidity in September: 79%
The month with the highest relative humidity is November (81%).
The months with the lowest relative humidity are January and December (74%).
Average rainfall in September
Porlezza, Italy
- Average rainfall in September: 89mm
The wettest month (with the highest rainfall) is August (191mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in September
Porlezza, Italy
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is June (22.7 days).
The month with the least rainy days is December (8.7 days).
Average snowfall in September
Porlezza, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is December (20mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Porlezza, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.1 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
Porlezza, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in September
Porlezza, Italy
- Average sunshine days in September: 11 days
The month with the most sunshine days is December (20.8 days).
The month with the least sunshine days is June (5 days).
Average UV index in September
Porlezza, Italy
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Porlezza, Italy
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Porlezza, Italy
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August and December (9km).
The months with the lowest visibility are September, October and November (8km).
