September weather forecastGrignasco, Italy
September
Weather in September
September, the first month of the autumn in Grignasco, is also an agreeable month, with temperature in the range of an average low of 11.1°C (52°F) and an average high of 20.6°C (69.1°F).Temperature
September signifies a minor drop in average high-temperature, transitioning from a warm 24.9°C (76.8°F) in August to a pleasant 20.6°C (69.1°F). In the month of September, an average of 11.1°C (52°F) marks the low-temperature in Grignasco.Humidity
In Grignasco, the average relative humidity in September is 73%.Rainfall
In Grignasco, during September, the rain falls for 14.7 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, in Grignasco, Italy, there are 188.8 rainfall days, and 1018mm (40.08") of precipitation is accumulated.Snowfall
In Grignasco, snow does not fall in April through October.Daylight
The average length of the day in September in Grignasco is 12h and 32min.On the first day of September in Grignasco, Italy, sunrise is at 06:48 and sunset at 20:04. On the last day of the month, sunrise is at 07:24 and sunset at 19:08 CEST.
Sunshine
In September, the average sunshine is 9.5h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Exercise prevention - Precautions against solar damage are endorsed. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. 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
Grignasco, Italy
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (4.6°C).
- Average low temperature in September: 11.1°C
The months with the highest average low temperature are July and August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-1.6°C).
Average pressure in September
Grignasco, Italy
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is December (1020.3mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Grignasco, Italy
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is May (6.8km/h).
The calmest month (with the lowest average wind speed) is November (5.2km/h).
Average humidity in September
Grignasco, Italy
- Average humidity in September: 73%
The month with the highest relative humidity is November (77%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Grignasco, Italy
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is November (164mm).
The driest month (with the least rainfall) is January (22mm).
Average rainfall days in September
Grignasco, Italy
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Grignasco, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (47mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Grignasco, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.4 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
Grignasco, 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: 9h and 30min
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 48min).
Average sunshine days in September
Grignasco, Italy
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is January (19.1 days).
The month with the least sunshine days is July (4.1 days).
Average UV index in September
Grignasco, Italy
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grignasco, Italy
- Average cloud cover in September: 26
The month with the most cloud cover is November (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Grignasco, Italy
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
