The weather in September in Kostel

It's warm in September in Kostel with an average temperature of 23°C. Temperatures this month range from a low of 19°C to a high of 26°C. At night, you can expect temperatures between 10°C and 16°C.

Looking for sun? September isn’t a good month to be in Kostel. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Kostel, Slovenia. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 31°C in 2015, Kostel reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 12°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 20°C.

Rainfall amount

In September, there is an average of 171 mm of precipitation, spread over 20 days. The wind speed is around 3 Bft, mostly coming from the South.

Daily weather in September for Kostel

Click on any day in September to get detailed info about the usual weather on that day in Kostel. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Kostel New York
Average temperature 23°C 27°C
Max. temperature 26°C 31°C
Min. temperature 10°C -5°C
Total precipitation 171 mm 57 mm
Rainy days 20 days 9 days

Start of September

The month of September starts in Kostel with warm temps, averaging around 25°C during the day and nights around 15°C.

Mid September

By mid-September, daytime temps drop to around 24°C, with nights around 15°C. There’s a high chance of precipitation during this time.

End of September

By the end of September, the average daytime temperature in Kostel is around 21°C, while nighttime temps are about 11°C. There’s a significant chance of many days with precipitation.

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 Kostel for all months and discover the best travel time

Curious about the weather in other parts of Slovenia? Check out the climate and weather for spots like Ljubljana, Bled, Bohinj, or explore other destinations in Slovenia.

Temperature charts

These charts show the average temperatures in September in Kostel, Slovenia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Kostel

Temperature in September in Kostel over the years

Precipitation charts

These charts show the average amount of precipitation in September in Kostel, Slovenia. 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 Kostel

Total precipitation in September in Kostel over the years

Daily UV index in September in Kostel

This chart shows the average daily UV index in September in Kostel, 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 Kostel

Have you been to Kostel in September?

Share your weather experience in September in Kostel.

Your email will not be shown in the review and will not be shared with others.

Average weather in Kostel by month

Click on a month below to see detailed weather info for Kostel. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.