AustraliaThe weather in September in Blue Mountain
It's warm in September in Blue Mountain with an average temperature of 26°C. Temperatures this month range from a low of 24°C to a high of 28°C. At night, you can expect temperatures between 12°C and 19°C.
Looking for great weather? September is a good time to be in Blue Mountain. The temperatures are nice, and there’s little chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Blue Mountain, Australia. 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 32°C in 2019, Blue Mountain reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 21°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 23°C.
Rainfall amount
In September, there is an average of 15 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in September for Blue Mountain
Click on any day in September to get detailed info about the usual weather on that day in Blue Mountain. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Blue Mountain | New York | |
|---|---|---|
| Average temperature | 26°C | 27°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 15 mm | 57 mm |
| Rainy days | 4 days | 9 days |
Start of September
The month of September starts in Blue Mountain with warm temps, averaging around 26°C during the day and nights around 15°C.
Mid September
By mid-September, daytime temps stay steady at around 26°C, with nights around 16°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Blue Mountain is around 27°C, while nighttime temps are about 18°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 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Blue Mountain for all months and discover the best travel time
Curious about the weather in other parts of Australia? Check out the climate and weather for spots like Sydney, Gold Coast, Melbourne, or explore other destinations in Australia.
Temperature charts
These charts show the average temperatures in September in Blue Mountain, Australia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Blue Mountain
Temperature in September in Blue Mountain over the years
Precipitation charts
These charts show the average amount of precipitation in September in Blue Mountain, Australia. 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 Blue Mountain
Total precipitation in September in Blue Mountain over the years
Daily UV index in September in Blue Mountain
This chart shows the average daily UV index in September in Blue Mountain, 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 Blue Mountain
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Average weather in Blue Mountain by month
Click on a month below to see detailed weather info for Blue Mountain. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.