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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 27.6°C (81.7°F) in August to a pleasant 22.9°C (73.2°F). Castelletto sopra Ticino records an average temperature drop to a refreshing 13.6°C (56.5°F) in September.Humidity
In September, the average relative humidity in Castelletto sopra Ticino, Italy, is 73%.Rainfall
In Castelletto sopra Ticino, Italy, in September, it is raining for 14.1 days, with typically 55mm (2.17") of accumulated precipitation. Throughout the year, there are 173.7 rainfall days, and 1063mm (41.85") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Castelletto sopra Ticino.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 06:47 and sunset at 20:03. On the last day of the month, sunrise is at 07:23 and sunset at 19:07 CEST.
Sunshine
In September, the average sunshine in Castelletto sopra Ticino is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Castelletto sopra Ticino in September?
What is the average humidity in September in Castelletto sopra Ticino?
How many days does it rain in September in Castelletto sopra Ticino?
When it does not snow in Castelletto sopra Ticino?
What is the average length of the day in September in Castelletto sopra Ticino?
What time are sunrise and sunset in September in Castelletto sopra Ticino?
How long on average sun shines in September in Castelletto sopra Ticino?
How high is the UV index in September in Castelletto sopra Ticino?
Average temperature in September
Castelletto sopra Ticino, Italy
- Average high temperature in September: 22.9°C
The warmest month (with the highest average high temperature) is July (27.7°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in September: 13.6°C
The month with the highest average low temperature is August (17.3°C).
The coldest month (with the lowest average low temperature) is January (0.4°C).
Average pressure in September
Castelletto sopra Ticino, Italy
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Castelletto sopra Ticino, Italy
- Average wind speed in September: 5.8km/h
The windiest months (with the highest average wind speed) are March and April (6.7km/h).
The calmest month (with the lowest average wind speed) is December (5.3km/h).
Average humidity in September
Castelletto sopra Ticino, Italy
- Average humidity in September: 73%
The month with the highest relative humidity is November (79%).
The months with the lowest relative humidity are April and August (70%).
Average rainfall in September
Castelletto sopra Ticino, Italy
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is November (171mm).
The driest month (with the least rainfall) is January (32mm).
Average rainfall days in September
Castelletto sopra Ticino, Italy
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (20.2 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Castelletto sopra Ticino, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Castelletto sopra Ticino, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Castelletto sopra Ticino, Italy
- Average daylight in September: 12h and 3min
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 48min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in September
Castelletto sopra Ticino, Italy
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is May (6.8 days).
Average UV index in September
Castelletto sopra Ticino, Italy
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Castelletto sopra Ticino, Italy
- Average cloud cover in September: 27
The month with the most cloud cover is November (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 21).
Average visibility in September
Castelletto sopra Ticino, Italy
- Average visibility in September: 9km
The month with the highest visibility is July (10km).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
