September weather forecastGrigno, Italy
September
Weather in September
September, the first month of the autumn in Grigno, is still a comfortable month, with an average temperature varying between 9.5°C (49.1°F) and 17.9°C (64.2°F).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from an agreeable 22.3°C (72.1°F) in August to an enjoyable 17.9°C (64.2°F). An average low-temperature of 9.5°C (49.1°F) is noted during the month of September.Humidity
The average relative humidity in September in Grigno is 81%.Rainfall
In Grigno, in September, during 18.6 rainfall days, 64mm (2.52") of precipitation is typically accumulated. Throughout the year, there are 186.6 rainfall days, and 1090mm (42.91") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Grigno, Italy, is 12h and 32min.On the first day of September in Grigno, sunrise is at 06:34 and sunset at 19:51. On the last day of the month, sunrise is at 07:11 and sunset at 18:55 CEST.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September in Grigno is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grigno, Italy
- Average high temperature in September: 17.9°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in September
Grigno, Italy
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is May (1014.8mbar).
Average wind speed in September
Grigno, Italy
- Average wind speed in September: 6km/h
The windiest months (with the highest average wind speed) are February, March, April and May (6.9km/h).
The calmest month (with the lowest average wind speed) is November (5.7km/h).
Average humidity in September
Grigno, Italy
- Average humidity in September: 81%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is December (75%).
Average rainfall in September
Grigno, Italy
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is June (154mm).
The driest month (with the least rainfall) is January (30mm).
Average rainfall days in September
Grigno, Italy
- Average rainfall days in September: 18.6 days
The month with the highest number of rainy days is June (25.9 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in September
Grigno, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (458mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grigno, Italy
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Grigno, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 4h and 48min).
Average sunshine days in September
Grigno, Italy
- Average sunshine days in September: 8.6 days
The month with the most sunshine days is December (20.1 days).
The month with the least sunshine days is June (2.3 days).
Average UV index in September
Grigno, 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, October, November and December (UV index 2).
Average cloud cover in September
Grigno, Italy
- Average cloud cover in September: 40
The month with the most cloud cover is November (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Grigno, Italy
- Average visibility in September: 8km
The months with the highest visibility are June, July, August and December (9km).
The months with the lowest visibility are January, February, March, April, May, September, October and November (8km).
