Temperature in The Blue Mountains in September

Daytime highs, nighttime lows and the warmest cities in the Blue Mountains, Australia this September.

The Blue Mountains, Australia, a region in Australia, experiences pleasant average maximum daytime temperatures in September, ranging from 18°C (64°F) in Mount Victoria to 21°C (70°F) in Springwood. Nighttime temperatures generally drop to 7°C (45°F) in Springwood and 5°C (41°F) in Mount Victoria.

What is the temperature of the different cities in the Blue Mountains, Australia in September?

To get a sense of September's typical temperatures in the key spots of the Blue Mountains, explore the map below. Click on a point for an in-depth look.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit the Blue Mountains, check out our the Blue Mountains's climate page.

See also: the Blue Mountains weather by month.

Best Places to Visit in the Blue Mountains in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Blue Mountains.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

See all September weather averages, cities and regions in the Blue Mountains

The Blue Mountains temperatures in September: frequently asked questions

How hot does it get in the Blue Mountains, Australia in September?

Katoomba averages a daytime high of 19°C (66°F) in September, which is pleasant for the Blue Mountains, Australia.

How cold does it get at night in the Blue Mountains, Australia in September?

Katoomba sees nighttime lows close to 6°C (43°F) in September.

What is the warmest city in September in the Blue Mountains, Australia?

From a thorough analysis of our records, Springwood clearly dominates in terms of high temperatures. The city witnesses daytime temperatures hovering around 21°C (70°F), and evenings that remain near 7°C (45°F).

What is the coldest city in September in the Blue Mountains, Australia?

For the month of September, Mount Victoria is the most temperate city in the Blue Mountains, Australia based on our records. Highs average 18°C (64°F) and nighttime temperatures dip to around 5°C (41°F).

Interested in more climate information?

We have much more information about the climate in the Blue Mountains.

Weather and climate has detailed information for every country in the world. Are you going to Australia? Get detailed historical weather averages for many cities in Australia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

An alternative way to discover Sydney

We have made an overview of the sights in Sydney that you must see if you want to visit Sydney in an alternative way.
The most relaxed and alternative area of Australia is called the Byron Shire

The Byron Shire is one of the most pretty areas in the world. Not only in terms on natural beauty, also the relaxed vibe and people make this an area that remains close to your heart.
Sail the Whitsunday islands

The best travel period to sail the Whitsunday islands is “winter” between June and October, with pleasant temperatures around 23 degrees Celsius (74 Fahrenheit).

The best dive spots in Australia

Explore Australia's best dive spots: from the Great Barrier Reef to HMAS Perth. Discover vibrant corals, marine life, and historic wrecks.
Must visit in Australia →