Temperatures in September
It's cool to moderate in September in Châtillon with an average temperature of 15°C. Temperatures this month range from a low of 12°C to a high of 17°C. At night, you can expect temperatures between 4°C and 8°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Châtillon in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Châtillon with cool temperatures, averaging around 16°C during the day and nights close to 7°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-September
By mid-September, the average daytime temperature drops to around 15°C, with nights close to 7°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of September
By the end of September, the average daytime temperature in Châtillon will be around 14°C, with nights close to 5°C. A shower might show up, but overall the weather will be dry and sunny.
Discover cheap trips to Châtillon 
Precipitation in September
In September, there is an average of 53 mm of precipitation, spread over 10 days. Of the total precipitation, about 1,0 cm falls as snow in September. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 33% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Châtillon. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Châtillon in September |
London | ||
|---|---|---|---|
 Average Temperature |
15°C | 20°C | |
 High Temp |
17°C | 22°C | |
| Low Temp |
12°C | 17°C | |
 Total Precipitation |
53 mm | 44 mm | |
| Rainy Days |
10 days | 8 days | |
 Total Snowfall |
1,0 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 Châtillon?
Looking for sun and warm weather? Then September isn’t the best time to be in Châtillon. The temperature is too low this month for a warm stay.
Check out the climate of Châtillon for all months and discover the best travel time
Curious about the climate in other parts of Italy? Check out the weather and climate in places like Tuscany, Sicily, Lake Garda, or have a look at other destinations in Italy.
Plan your next holiday
Don’t miss the best holiday deals for Châtillon and see what our partners have for you.
Daily Temperature in September in Châtillon
This chart shows the average daily temperatures, both day and night, for each day in September in Châtillon, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Châtillon
The chart below shows the average daily precipitation in September for Châtillon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 10 days of rain in Châtillon.
Daily Snowfall in September in Châtillon
This chart shows the average daily snowfall in September in Châtillon, measured in centimetres. 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 Châtillon
This chart shows the average daily UV index in September in Châtillon, 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 Châtillon Over the Years
This chart shows the average temperature in September in Châtillon, measured in degrees Celsius, over the past years.
Total Precipitation in September in Châtillon Over the Years
This chart shows the average precipitation in September in Châtillon, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in September in Châtillon per year
This chart shows the average snowfall in September in Châtillon, measured in centimetres, over the past years.
Daily climate in September for Châtillon
Click on a specific day in September for detailed info on the typical weather on that day in Châtillon. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Châtillon
Have you been to Châtillon in September?
Share your weather experience in September in Châtillon.
Average Weather in Châtillon by Month
Click on a month below to see detailed weather info for Châtillon. 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 Châtillon for all months at once
