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
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a moderately hot 29.2°C (84.6°F) to a still warm 24.5°C (76.1°F). San Pietro Apostolo records an average low-temperature of 16.1°C (61°F) throughout the month of September.Humidity
The average relative humidity in September in San Pietro Apostolo is 71%.Rainfall
In San Pietro Apostolo, during September, the rain falls for 14.6 days and regularly aggregates up to 51mm (2.01") of precipitation. In San Pietro Apostolo, Italy, during the entire year, the rain falls for 172.5 days and collects up to 629mm (24.76") of precipitation.Snowfall
In San Pietro Apostolo, snow does not fall in January through November.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in San Pietro Apostolo, sunrise is at 06:23 and sunset at 19:24. On the last day of the month, sunrise is at 06:49 and sunset at 18:38 CEST.
Sunshine
The average sunshine in September in San Pietro Apostolo is 10.3h.UV index
The average daily maximum UV index in September in San Pietro Apostolo is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during September translates into the following guidance:
Ensure safety - Imperative it is to shield skin and eyes from damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in San Pietro Apostolo?
What is the average humidity in September in San Pietro Apostolo?
How many days does it rain in September in San Pietro Apostolo?
When it does not snow in San Pietro Apostolo?
How many hours of daylight does San Pietro Apostolo have in September?
When are sunrise and sunset in September in San Pietro Apostolo?
How long on average sun shines in September in San Pietro Apostolo?
What is the UV index intensity in September in San Pietro Apostolo?
Average temperature in September
San Pietro Apostolo, Italy
- Average high temperature in September: 24.5°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (10.7°C).
- Average low temperature in September: 16.1°C
The month with the highest average low temperature is August (19.2°C).
The coldest months (with the lowest average low temperature) are January and February (5°C).
Average pressure in September
San Pietro Apostolo, Italy
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in September
San Pietro Apostolo, Italy
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is February (14.3km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in September
San Pietro Apostolo, Italy
- Average humidity in September: 71%
The month with the highest relative humidity is November (81%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
San Pietro Apostolo, Italy
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is November (76mm).
The driest month (with the least rainfall) is July (35mm).
Average rainfall days in September
San Pietro Apostolo, Italy
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is July (10 days).
Average snowfall in September
San Pietro Apostolo, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is December (3mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
San Pietro Apostolo, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
San Pietro Apostolo, Italy
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 10h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in September
San Pietro Apostolo, Italy
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is July (18.6 days).
The months with the least sunshine days are February and May (10.3 days).
Average UV index in September
San Pietro Apostolo, Italy
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
San Pietro Apostolo, Italy
- Average cloud cover in September: 21
The months with the most cloud cover are January and February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in September
San Pietro Apostolo, Italy
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, February and November (9km).
