Blue Mountains in september: average Weather, Temperature and Climate
Weather in Blue Mountains in september 2025
The weather in Blue Mountains in the month of september comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather 14.8cm
Weather at 6am
47°F
Clear/Sunny
47% of time
19%
19%
6%
Weather at 12pm
63°F
Clear/Sunny
56% of time
19%
16%
5%
Weather at 6pm
49°F
Clear/Sunny
52% of time
22%
15%
5%
Weather at 3am
43°F
40%
33%
13%
6%
Evolution of daily average temperature and precipitation in Blue Mountains in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Blue Mountains in september.
The climate of Blue Mountains in september is tolerable
the weather in Blue Mountains in september is relatively dry (with 2.4in of rainfall over 3 days). It should be noted a worsening from the previous month since in august there is an average of 2.2in of precipitation over 3 days.
The climate is fairly cool in this location this month, but it is livable by dressing cosy. The thermometer averaged maximum of 65°F. The seasonal minimum is 47°F. Thus, the mean temperature average in september in Blue Mountains is 56°F. Note that these seasonal averages are in contrast with those observed in Blue Mountains in september with a maximum record of 85°F in 2017 and a minimum record of 27°F in 2012. You can plan to have about 15 days with temperatures above 65°F, or 50% of the month.
In september in Blue Mountains, the days on average last 11:52. Sunrise is at 06:58 and sunset is at 18:50.
With a correct weather, the month of september is okay (but not good) to go in this city in Australia.
Blue Mountains: another month?
If you can push back the dates of your trip, we advise you to go in october to Blue Mountains. more information
September: another location in Australia?
If you want to go to Australia in september, there are destinations with better weather than Blue Mountains:
In september, Sydney, Alice Springs, Brisbane (Queensland), Cairns, Darwin and Mackay have perfect weather.
Furthermore, Adelaide, Perth, Esperance, Kangaroo Island, Mildura and Streaky Bay have good weather.
Seasonal average climate and temperature of Blue Mountains in september
Check below seasonal norms These datas are set from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 56°F | ||||
| Highest temperature | 65°F | ||||
| Lowest temperature | 47°F | ||||
| Highest record temperature | 85°F (2017) | ||||
| Lowest record temperature | 27°F (2012) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 15 day(s) (50%) | ||||
| Number of days at -32°F | 0 day(s) (0%) | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 43°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.4in | ||||
| Number of days with rainfall | 3 day(s) (10%) | ||||
| Record daily rainfall | 2.8in (2019) | ||||
| Snowfall | 14.8cm | ||||
| Other climate data | |||||
| Humidity | 84% | ||||
| Visibility | 8.2km | ||||
| Cloud cover | 35% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:58 | ||||
| Time of sunset | 18:50 | ||||
| Length of day | 11:52 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Blue Mountains in september 2024:
47°F to 63°F
52°F to 56°F
31°F to 59°F
36°F to 65°F
47°F to 68°F
47°F to 70°F
59°F to 70°F
41°F to 65°F
43°F to 61°F
38°F to 70°F
43°F to 68°F
43°F to 56°F
34°F to 61°F
36°F to 61°F
25°F to 52°F
27°F to 58°F
32°F to 63°F
32°F to 63°F
45°F to 63°F
34°F to 59°F
43°F to 59°F
43°F to 63°F
40°F to 68°F
47°F to 70°F
58°F to 72°F
38°F to 52°F
40°F to 50°F
43°F to 56°F
40°F to 61°F
43°F to 63°F
Map: other cities in Australia in september
Cities near Blue Mountains:
| Cockatoo Island in september | perfect weather |
| Umina in september | perfect weather |
| Sydney in september | perfect weather |
| Manly beach in september | good weather |
| Bondi beach in september | perfect weather |
| Bateau Bay in september | perfect weather |
| Wollongong in september | good weather |
| Newcastle in september | perfect weather |
| Canberra in september | tolerable weather |
| Forster in september | perfect weather |
| Batemans Bay in september | good weather |
| Tamworth in september | good weather |
Click over cities on the map for information about the weather in september.
Blue Mountains
perfect weather
good
tolerable
bad
very bad
Weather data for Blue Mountains in september:
Weather data for Blue Mountains for september are derived from an average of the weather forecast since 2009 in Blue Mountains. There is a margin of error and these forecasts are to be considered as general information only. The weather in Blue Mountains can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Blue Mountains.