September weather forecastGrontardo, Italy
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Grontardo, Italy, with temperature in the range of an average low of 14.7°C (58.5°F) and an average high of 25.5°C (77.9°F).Temperature
With September's onset, the weather shows a temperature decrease, transitioning from a hot 30.8°C (87.4°F) in August to a warm 25.5°C (77.9°F). Grontardo in September anticipates an average nighttime temperature of 14.7°C (58.5°F).Humidity
In Grontardo, the average relative humidity in September is 69%.Rainfall
In Grontardo, during September, the rain falls for 9.3 days and regularly aggregates up to 40mm (1.57") of precipitation. In Grontardo, during the entire year, the rain falls for 130.4 days and collects up to 496mm (19.53") of precipitation.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:41 and sunset at 19:56. On the last day of September, sunrise is at 07:16 and sunset at 19:01 CEST.
Sunshine
The average sunshine in September is 10.2h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 during September translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grontardo, Italy
- Average high temperature in September: 25.5°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 14.7°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in September
Grontardo, Italy
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is May (1014.3mbar).
Average wind speed in September
Grontardo, Italy
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is March (7.6km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Grontardo, Italy
- Average humidity in September: 69%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Grontardo, Italy
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is January (19mm).
Average rainfall days in September
Grontardo, Italy
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is December (5.8 days).
Average snowfall in September
Grontardo, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Grontardo, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Grontardo, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 10h and 12min
The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in September
Grontardo, Italy
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is December (24.2 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in September
Grontardo, 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, November and December (UV index 2).
Average cloud cover in September
Grontardo, Italy
- Average cloud cover in September: 23
The month with the most cloud cover is November (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in September
Grontardo, Italy
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).





