AustraliaAverage weather for Blue Mountain in September
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.
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. There’s little chance of precipitation. The weather’s mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
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.
Since it cools down at night, it’s a good idea to wear layers.
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.
Because temperatures drop in the evening, wearing layers is recommended.
In September, there is an average of 15 mm of precipitation, spread over 3 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Blue Mountain in September |
New York | ||
|---|---|---|---|
 Average temperature |
26°C | 27°C | |
 Max. temperature |
28°C | 31°C | |
| Min. temperature |
24°C | -5°C | |
 Total precipitation |
15 mm | 57 mm | |
| Rainy days |
3 days | 9 days | |
August
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.
Is September a good time to visit Blue Mountain?
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.
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.
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.
Daily Temperature in September in Blue Mountain
This chart shows the average daily high and low temperatures in September for Blue Mountain, 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 Blue Mountain
The chart below shows the average daily precipitation in September for Blue Mountain, 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 3 days of precipitation in Blue Mountain.
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.
Temperature in September in Blue Mountain over the years
This chart shows the average temperature in September in Blue Mountain, measured in degrees Celsius, over the past few years.
Total precipitation in September in Blue Mountain over the years
This chart shows the average precipitation in September in Blue Mountain, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
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.
Weather experiences in September in Blue Mountain
Have you been to Blue Mountain in September?
Share your weather experience in September in Blue Mountain.
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.
Or check out the climate of Blue Mountain for all months at once
