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Blue Mountains Municipality (Katoomba)
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Weather in Blue Mountains Municipality for December 2025

Your guide to Blue Mountains Municipality weather in December - trends and predictions

    Temperatures

  • Until now, December 2025 in Blue Mountains Municipality has been nearly identical to the historical average, with a temperature of 28.6 °C (showing only a slight deviation of -0.2 °C).

  • The forecast for the next days in Blue Mountains Municipality predicts temperatures to be around 29 °C, close to the historical average.

  • In general, the average temperature in Blue Mountains Municipality at the beginning of December is 28.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 27.4 °C by the end of December.

    • Rain 🌧️

  • Blue Mountains Municipality in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 29.8 mm.

    • More

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

Average dry days
14
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/13°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
60 %
Avg humidity

Blue Mountains Municipality Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
23°
2
Sunny
27°
3
Moderate rain at times
27°
4
Moderate rain at times
29°
5
Moderate or heavy rain shower
33°
6
Heavy rain at times
35°
7
Moderate or heavy rain shower
28°
8
Sunny
31°
9
Patchy rain possible
32°
10
Patchy rain possible
31°
11
Overcast
21°
12
Sunny
24°
13
Sunny
31°
14
Partly cloudy
31°
15
Moderate rain at times
33°
16
Patchy rain possible
16°
17
Partly cloudy
31°
18
Sunny
36°
19
Patchy rain possible
37°
20
Patchy rain possible
29°
21
Partly cloudy
38°
22
Patchy rain possible
37°
23
Patchy rain possible
29°
24
Patchy rain possible
17°
25
Patchy rain possible
24°
26
Patchy rain possible
25°
27
Partly cloudy
29°
28
Patchy rain possible
30°
29
Patchy rain possible
26°
30
Patchy rain possible
28°
31
Patchy light drizzle
30°

Temperatures trend during December in Blue Mountains Municipality

See the weather trend as well as the moving average line

December weather in Blue Mountains Municipality day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 23° /9° 0.6 mm 8
2 Dec. Sunny
Sunny
 27° /6° 0 mm 10
3 Dec. Moderate rain at times
Moderate rain at times
 27° /9° 1.1 mm 10
4 Dec. Moderate rain at times
Moderate rain at times
 29° /14° 1.5 mm 10
5 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 33° /14° 1.1 mm 10
6 Dec. Heavy rain at times
Heavy rain at times
 35° /18° 0.7 mm 11
7 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /13° 1.7 mm 9
8 Dec. Sunny
Sunny
 31° /12° 0.1 mm 11
9 Dec. Patchy rain possible
Patchy rain possible
 32° /14° 0.2 mm 11
10 Dec. Patchy rain possible
Patchy rain possible
 31° /13° 2.8 mm 10
11 Dec. Overcast
Overcast
 21° /12° 7.4 mm 8
12 Dec. Sunny
Sunny
 24° /12° 5.8 mm 9
13 Dec. Sunny
Sunny
 31° /13° 0.6 mm 11
14 Dec. Partly cloudy
Partly cloudy
 31° /14° 0.5 mm 11
15 Dec. Moderate rain at times
Moderate rain at times
 33° /15° 0.9 mm 10
16 Dec. Patchy rain possible
Patchy rain possible
 16° /9° 2 mm 0.6
17 Dec. Partly cloudy
Partly cloudy
 31° /9° 0 mm 3.7
18 Dec. Sunny
Sunny
 36° /16° 0 mm 3.3
19 Dec. Patchy rain possible
Patchy rain possible
 37° /15° 0.6 mm 3
20 Dec. Patchy rain possible
Patchy rain possible
 29° /17° 0.2 mm 8
21 Dec. Partly cloudy
Partly cloudy
 38° /17° 0 mm 10
22 Dec. Patchy rain possible
Patchy rain possible
 37° /16° 1.6 mm 9
23 Dec. Patchy rain possible
Patchy rain possible
 29° /14° 1 mm 8
24 Dec. Patchy rain possible
Patchy rain possible
 17° /11° 0.8 mm 7
25 Dec. Patchy rain possible
Patchy rain possible
 24° /14° 0.2 mm 7
26 Dec. Patchy rain possible
Patchy rain possible
 25° /14° 0.2 mm 7
27 Dec. Partly cloudy
Partly cloudy
 29° /13° 0 mm 9
28 Dec. Patchy rain possible
Patchy rain possible
 30° /16° 3.2 mm 8
29 Dec. Patchy rain possible
Patchy rain possible
 26° /17° 1.6 mm 8
30 Dec. Patchy rain possible
Patchy rain possible
 28° /13° 1 mm 9
31 Dec. Patchy light drizzle
Patchy light drizzle
 30° /12° 1.7 mm 10
Next
Important Notice
Our weather forecast for Blue Mountains Municipality in December 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 Blue Mountains Municipality forecast closer to your planned date for the most up-to-date weather information.
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Blue Mountains Municipality in December - FAQ

What are the expected maximum and minimum temperatures in Blue Mountains Municipality during December?
Enjoy moderate daytime temperatures of up to 29° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Blue Mountains Municipality during December?
In December, Blue Mountains Municipality can expect light to moderate rainfall, totaling 29.8 mm across approximately 17 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Blue Mountains Municipality during December?
The average wind speed in Blue Mountains Municipality during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Blue Mountains Municipality

Explore the daily rainfall trends and prepare for Blue Mountains Municipalitys December weather 💧
Typically, Blue Mountains Municipality has 17 rainy days in December with a total of 29.8 mm of rainfall.

UV exposure in Blue Mountains Municipality during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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Katoomba
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Location coordinates Where is Blue Mountains Municipality?

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

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