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Australia weather

Weather in Katoomba for September 2025

Your guide to Katoomba weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Katoomba is slightly cooler than the historical average by -0.7 °C.

  • The forecast for the upcoming days in Katoomba predicts a temperature of 21.6 °C, which is slightly above the historical average.

  • In general, the average temperature in Katoomba at the beginning of September is 19 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 20.7 °C by the end of September.

    • Rain 🌧️

  • Katoomba experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 54 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/4°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
61 %
Avg humidity

Katoomba Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Overcast
19°
2
Fog
18°
3
Partly cloudy
18°
4
Sunny
19°
5
Overcast
18°
6
Patchy rain possible
17°
7
Partly cloudy
24°
8
Patchy rain possible
23°
9
Overcast
19°
10
Sunny
18°
11
Partly cloudy
18°
12
Moderate or heavy rain shower
17°
13
Partly cloudy
16°
14
Sunny
21°
15
Sunny
22°
16
Patchy rain possible
25°
17
Patchy rain possible
21°
18
Sunny
23°
19
Patchy rain possible
27°
20
Sunny
19°
21
Partly cloudy
14°
22
Sunny
19°
23
Sunny
21°
24
Sunny
21°
25
Sunny
21°
26
Partly cloudy
23°
27
Sunny
26°
28
Patchy rain possible
14°
29
Patchy rain possible
20°
30
Light rain shower
20°

Temperatures trend during September in Katoomba

See the weather trend as well as the moving average line

September weather in Katoomba day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Overcast
Overcast
 19° /-1° 0 mm 5
2 Sept. Fog
Fog
 18° /0° 0 mm 5
3 Sept. Partly cloudy
Partly cloudy
 18° /0° 0 mm 6
4 Sept. Sunny
Sunny
 19° /5° 0 mm 6
5 Sept. Overcast
Overcast
 18° /3° 0 mm 5
6 Sept. Patchy rain possible
Patchy rain possible
 17° /7° 0 mm 5
7 Sept. Partly cloudy
Partly cloudy
 24° /8° 0 mm 7
8 Sept. Patchy rain possible
Patchy rain possible
 23° /13° 0 mm 6
9 Sept. Overcast
Overcast
 19° /8° 3.5 mm 5
10 Sept. Sunny
Sunny
 18° /2° 18 mm 6
11 Sept. Partly cloudy
Partly cloudy
 18° /3° 2.3 mm 6
12 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /2° 6.7 mm 5
13 Sept. Partly cloudy
Partly cloudy
 16° /0° 0 mm 6
14 Sept. Sunny
Sunny
 21° /6° 0 mm 1.5
15 Sept. Sunny
Sunny
 22° /7° 0 mm 1.6
16 Sept. Patchy rain possible
Patchy rain possible
 25° /13° 1 mm 1.4
17 Sept. Patchy rain possible
Patchy rain possible
 21° /3° 0.3 mm 1.6
18 Sept. Sunny
Sunny
 23° /2° 0 mm 1.7
19 Sept. Patchy rain possible
Patchy rain possible
 27° /6° 1.1 mm 4
20 Sept. Sunny
Sunny
 19° /6° 0 mm 5
21 Sept. Partly cloudy
Partly cloudy
 14° /2° 0.1 mm 4
22 Sept. Sunny
Sunny
 19° /-3° 0 mm 4
23 Sept. Sunny
Sunny
 21° /-1° 0 mm 4
24 Sept. Sunny
Sunny
 21° /2° 0 mm 5
25 Sept. Sunny
Sunny
 21° /5° 0 mm 5
26 Sept. Partly cloudy
Partly cloudy
 23° /6° 0 mm 5
27 Sept. Sunny
Sunny
 26° /9° 0 mm 6
28 Sept. Patchy rain possible
Patchy rain possible
 14° /6° 1 mm 4
29 Sept. Patchy rain possible
Patchy rain possible
 20° /6° 0.9 mm 6
30 Sept. Light rain shower
Light rain shower
 20° /4° 5.8 mm 6
Next
Important Notice
Our weather forecast for Katoomba in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Katoomba forecast closer to your planned date for the most up-to-date weather information.
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Katoomba in September - FAQ

What are the expected maximum and minimum temperatures in Katoomba during September?
During September, expect a variety of temperatures with highs around 19° and lows near 4°, suitable for diverse activities and preferences.
How much rainfall should be expected in Katoomba during September?
Moderate rainfall is anticipated in Katoomba during September, with a total of 54 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Katoomba during September?
The average wind speed in Katoomba during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Katoomba

Explore the daily rainfall trends and prepare for Katoombas September weather 💧

UV exposure in Katoomba during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Katoomba?

Get accurate weather forecasts for Katoomba, located at latitude -33.72 and longitude 150.307. Stay updated with localized weather information tailored for Katoomba.

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