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Switzerland
The weather in December in Castello
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December 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 December for Castello
Click on any day in December 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 cold in December in Castello with an average temperature of 8°C. Temperatures this month range from a low of 6°C to a high of 10°C. At night, you can expect temperatures between 0°C and 3°C.
Temperature records
With 19°C in 2023, Castello reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was -1°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -6°C to a highest value of 9°C.
Precipitation and snowfall
In December, there is an average of 88 mm of precipitation, spread over 12 days. Of the total precipitation, about 9,4 cm falls as snow in December. The wind speed is around 2 Bft, mostly coming from the Southwest.
December weather comparison
| Castello | New York | |
|---|---|---|
| Average temperature | 8°C | 9°C |
| Max. temperature | 10°C | 12°C |
| Min. temperature | 0°C | -5°C |
| Total precipitation | 88 mm | 133 mm |
| Rainy days | 12 days | 17 days |
| Total snowfall | 9,4 cm | 9,7 cm |
| Snowy days | 4 days | 3 days |
Start of December
The month of December starts in Castello with cold temps, averaging around 8°C during the day and nights around 2°C.
Mid December
By mid-December, daytime temps stay steady at around 8°C, with nights around 1°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of December
By the end of December, the average daytime temperature in Castello is around 9°C, while nighttime temps are about 2°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
UV index
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 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 December in Castello, Switzerland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Castello
Temperature in December in Castello over the years
Precipitation charts
These charts show the average amount of precipitation in December 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 December in Castello
Total precipitation in December in Castello over the years
Daily Snowfall in December in Castello
Snowfall in December in Castello per year
Daily UV index in December in Castello
This chart shows the average daily UV index in December 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 December 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.