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Switzerland
The weather in September in Castello
Looking for sun? September isn’t a good month to be in Castello. The temperature is nice, but there’s too much chance of rain.
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Castello, Switzerland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Daily weather in September for Castello
Click on any day in September to get detailed info about the usual weather on that day in Castello. Check out the historical temperatures and precipitation over the past 10 years on this day.
Average temperatures
It's pleasantly warm in September in Castello with an average temperature of 22°C. Temperatures this month range from a low of 19°C to a high of 24°C. At night, you can expect temperatures between 11°C and 16°C.
Temperature records
With 29°C in 2023, Castello reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 10°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 19°C.
Rainfall amount
In September, there is an average of 122 mm of precipitation, spread over 16 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
September weather comparison
| Castello | New York | |
|---|---|---|
| Average temperature | 22°C | 27°C |
| Max. temperature | 24°C | 31°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 122 mm | 57 mm |
| Rainy days | 16 days | 9 days |
Start of September
The month of September starts in Castello with warm temps, averaging around 24°C during the day and nights around 15°C.
Mid September
By mid-September, daytime temps drop to around 23°C, with nights around 15°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Castello is around 20°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Castello for all months and discover the best travel time
Curious about the weather in other parts of Switzerland? Check out the climate and weather for spots like Zurich, Geneva, Valais, or explore other destinations in Switzerland.
Temperature charts
These charts show the average temperatures in September in Castello, Switzerland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Castello
Temperature in September in Castello over the years
Precipitation charts
These charts show the average amount of precipitation in September in Castello, Switzerland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Castello
Total precipitation in September in Castello over the years
Daily UV index in September in Castello
This chart shows the average daily UV index in September in Castello, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Castello
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Average weather in Castello by month
Click on a month below to see detailed weather info for Castello. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.