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
Weather in September
Temperature
As August transitions into September, Gragnano sees a gentle drop in the average high-temperature, transitioning from a hot 30.2°C (86.4°F) to a moderately hot 25.5°C (77.9°F). During the month of September, the nighttime temperature falls to an average of 18.6°C (65.5°F).Humidity
The average relative humidity in September is 65%.Rainfall
In Gragnano, Italy, in September, it is raining for 12.5 days, with typically 48mm (1.89") of accumulated precipitation. Throughout the year, in Gragnano, there are 149.6 rainfall days, and 614mm (24.17") of precipitation is accumulated.Snowfall
March through December are months without snowfall in Gragnano.Daylight
In Gragnano, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 06:29 and sunset at 19:34. On the last day of September, in Gragnano, sunrise is at 06:57 and sunset at 18:45 CEST.
Sunshine
In September, the average sunshine in Gragnano is 10.9h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the usual temperature for Gragnano in September?
What is the average humidity in September in Gragnano?
How many days does it rain in September in Gragnano?
When it does not snow in Gragnano?
How many hours of daylight does Gragnano have in September?
What time are sunrise and sunset in September in Gragnano?
How long on average sun shines in September in Gragnano?
How high is the UV index in September in Gragnano?
Average temperature in September
Gragnano, 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
Gragnano, 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
Gragnano, 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
Gragnano, 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
Gragnano, 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
Gragnano, 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
Gragnano, 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
Gragnano, 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
Gragnano, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 5min
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
Gragnano, 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
Gragnano, 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
Gragnano, 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
Gragnano, 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).
Gragnano, Italy
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