easeweather.com
Kalgoorlie/Boulder (Kalgoorlie)
AdelaideAdelaide HillsAlbanyAlice SpringsArmidaleBairnsdaleBallaratBalwyn NorthBathurstBendigoBowralBrisbaneBroken HillBruny IslandBunburyBundabergBurnieBurwoodBusseltonCairnsCampbelltownCanberraCapalabaCessnockCoffs HarbourCoomeraCradle MountainDarwinDevonportDrouinDubboEchucaEmeraldForsterFrankston EastGawlerGeelongGeraldtonGladstoneGold CoastGoonellabahGoulburnGraftonGriffithHappy ValleyHervey BayHobartHornsbyHorshamKalgoorlieKarrathaKingaroyLauncestonLiverpoolLogan CityMackayMaitlandMandurahMaryboroughMaylandsMelbourneMilduraMoreton IslandMount BarkerMount BullerMount GambierMount IsaNarangbaNew LambtonNewcastleNewmanNoosa HeadsOcean GroveOrangeParramattaPerthPort DouglasPort LincolnPort MacquariePort PirieRockhamptonRockinghamSaleSheppartonStrahanSunshine CoastSydneyTamworthTareeToowoombaTorquayTownsvilleTraralgonWagga WaggaWangarattaWarragulWarrnamboolWarwickWodongaWollongongWoodridge More Locations
Australia weather

Weather in Kalgoorlie/Boulder for September 2025

Your guide to Kalgoorlie/Boulder weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Kalgoorlie/Boulder is slightly cooler than the historical average by -1.6 °C.

  • The forecast for the coming days of September 2025 predicts a temperature of 25.4 °C , which is warmer than usual.

  • In general, the average temperature in Kalgoorlie/Boulder at the beginning of September is 21 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 29 °C by the end of September.

    • Rain 🌧️

  • With an average of 2 rainy days, Kalgoorlie/Boulder experiences minimal rainfall in September.

    • More

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

Average dry days
28
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/9°
Temperatures
Average wind speed
30 km/h
Avg max wind
Average humidity
44 %
Avg humidity

Kalgoorlie/Boulder Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
22°
2
Sunny
23°
3
Cloudy
28°
4
Sunny
21°
5
Patchy rain possible
19°
6
Sunny
16°
7
Partly cloudy
18°
8
Sunny
18°
9
Overcast
20°
10
Partly cloudy
20°
11
Overcast
20°
12
Sunny
24°
13
Sunny
26°
14
Sunny
23°
15
Patchy rain possible
16°
16
Sunny
17°
17
Sunny
22°
18
Sunny
21°
19
Sunny
22°
20
Sunny
23°
21
Sunny
23°
22
Sunny
23°
23
Sunny
25°
24
Sunny
28°
25
Sunny
31°
26
Sunny
32°
27
Sunny
33°
28
Sunny
32°
29
Sunny
23°
30
Partly cloudy
24°

Temperatures trend during September in Kalgoorlie/Boulder

See the weather trend as well as the moving average line

September weather in Kalgoorlie/Boulder day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 22° /8° 0 mm 7
2 Sept. Sunny
Sunny
 23° /9° 0 mm 8
3 Sept. Cloudy
Cloudy
 28° /13° 0 mm 8
4 Sept. Sunny
Sunny
 21° /12° 2.1 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
 19° /8° 0.1 mm 6
6 Sept. Sunny
Sunny
 16° /6° 0.2 mm 6
7 Sept. Partly cloudy
Partly cloudy
 18° /6° 0.1 mm 7
8 Sept. Sunny
Sunny
 18° /7° 0 mm 6
9 Sept. Overcast
Overcast
 20° /8° 0 mm 6
10 Sept. Partly cloudy
Partly cloudy
 20° /8° 0 mm 7
11 Sept. Overcast
Overcast
 20° /7° 0 mm 6
12 Sept. Sunny
Sunny
 24° /9° 0 mm 7
13 Sept. Sunny
Sunny
 26° /10° 0 mm 8
14 Sept. Sunny
Sunny
 23° /11° 0 mm 7
15 Sept. Patchy rain possible
Patchy rain possible
 16° /7° 0 mm 5
16 Sept. Sunny
Sunny
 17° /5° 0 mm 1.7
17 Sept. Sunny
Sunny
 22° /8° 0 mm 1.8
18 Sept. Sunny
Sunny
 21° /9° 0 mm 1.9
19 Sept. Sunny
Sunny
 22° /8° 0 mm 1.8
20 Sept. Sunny
Sunny
 23° /10° 0 mm 2.1
21 Sept. Sunny
Sunny
 23° /11° 0 mm 6
22 Sept. Sunny
Sunny
 23° /11° 0 mm 6
23 Sept. Sunny
Sunny
 25° /11° 0 mm 6
24 Sept. Sunny
Sunny
 28° /14° 0 mm 7
25 Sept. Sunny
Sunny
 31° /16° 0 mm 7
26 Sept. Sunny
Sunny
 32° /17° 0 mm 8
27 Sept. Sunny
Sunny
 33° /14° 0 mm 7
28 Sept. Sunny
Sunny
 32° /18° 0 mm 8
29 Sept. Sunny
Sunny
 23° /14° 0 mm 6
30 Sept. Partly cloudy
Partly cloudy
 24° /12° 0 mm 7
Next
Important Notice
Our weather forecast for Kalgoorlie/Boulder 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 Kalgoorlie/Boulder forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Kalgoorlie/Boulder in September - FAQ

What are the expected maximum and minimum temperatures in Kalgoorlie/Boulder during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Kalgoorlie/Boulder during September?
Rainfall in Kalgoorlie/Boulder during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Kalgoorlie/Boulder during September?
The average wind speed in Kalgoorlie/Boulder during September is 30 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Kalgoorlie/Boulder

Explore the daily rainfall trends and prepare for Kalgoorlie/Boulders September weather 💧

UV exposure in Kalgoorlie/Boulder during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Kalgoorlie/Boulder
Select a location for an accurate weather forecast
Kalgoorlie
More Locations

Quick links

More Kalgoorlie/Boulder weather pages
You are here
Location coordinates Where is Kalgoorlie/Boulder?

Get accurate weather forecasts for Kalgoorlie/Boulder, located at latitude -30.746 and longitude 121.474. Stay updated with localized weather information tailored for Kalgoorlie/Boulder.

Found a mistake?
We appreciate your attention to details. Tell us here.