ItalyAverage weather for Valtellina in September
It's cool to moderate in September in Valtellina with an average temperature of 15°C. Temperatures this month range from a low of 12°C to a high of 18°C. At night, you can expect temperatures between 4°C and 9°C.
Start of September
The month of September starts in Valtellina with cool temps, averaging around 17°C during the day and nights around 8°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid September
By mid-September, daytime temps drop to around 16°C, with nights around 8°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 Valtellina is around 14°C, while nighttime temps are about 6°C. A shower might pop up, but overall, the weather will be dry and sunny.
In September, there is an average of 99 mm of precipitation, spread over 10 days. Of the total precipitation, about 0,5 cm falls as snow in September. The wind speed is around 3 Bft, mostly coming from the South.
Valtellina in September |
New York | ||
|---|---|---|---|
 Average temperature |
15°C | 27°C | |
 Max. temperature |
18°C | 31°C | |
| Min. temperature |
12°C | -5°C | |
 Total precipitation |
99 mm | 57 mm | |
| Rainy days |
10 days | 9 days | |
 Total snowfall |
0,5 cm | 0 cm | |
| Snowy days |
1 day | 0 days | |
August
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Valtellina?
Looking for sun and warm weather? September isn’t a good month to be in Valtellina. The temperatures are too low for a warm stay this month.
Temperature records
With 29°C in 2023, Valtellina reached the highest temperature in September 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 -4°C to a highest value of 16°C.
Check out the climate of Valtellina for all months and discover the best travel time
Curious about the weather in other parts of Italy? Check out the climate and weather for spots like Tuscany, Sicily, Lake Garda, or explore other destinations in Italy.
Daily Temperature in September in Valtellina
This chart shows the average daily high and low temperatures in September for Valtellina, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Valtellina
The chart below shows the average daily precipitation in September for Valtellina, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 10 days of precipitation in Valtellina.
Daily Snowfall in September in Valtellina
This chart shows the average daily snowfall in September in Valtellina, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in September.
Daily UV index in September in Valtellina
This chart shows the average daily UV index in September in Valtellina, 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.
Temperature in September in Valtellina over the years
This chart shows the average temperature in September in Valtellina, measured in degrees Celsius, over the past few years.
Total precipitation in September in Valtellina over the years
This chart shows the average precipitation in September in Valtellina, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in September in Valtellina per year
This chart shows the average snowfall in September in Valtellina, measured in centimeters, over the past few years.
Daily weather in September for Valtellina
Click on any day in September to get detailed info about the usual weather on that day in Valtellina. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Valtellina
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Average weather in Valtellina by month
Click on a month below to see detailed weather info for Valtellina. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Valtellina for all months at once
