Kalgoorlie/Boulder (Kalgoorlie)
September
Weather in Kalgoorlie/Boulder for September 2025
Your guide to Kalgoorlie/Boulder weather in September - trends and predictions
In general, the average temperature in Kalgoorlie/Boulder at the beginning of September is 22.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 20.9 °C by the end of September.
With an average of 2 rainy days, Kalgoorlie/Boulder experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
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28
Dry days
2
Rainy days
0
Snow days
22°/9°
Temperatures
30 km/h
Avg max wind
45 %
Avg humidity
Kalgoorlie/Boulder Weather September
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2 25° | 3  32° | 4 22° | 5  17° | 6 17° | 7  20° |
| 8 22° | 9  23° | 10 23° | 11 22° | 12 24° | 13 24° | 14 21° |
| 15 19° | 16 21° | 17 24° | 18 28° | 19 20° | 20 22° | 21 23° |
| 22 24° | 23 26° | 24 18° | 25 19° | 26 26° | 27 21° | 28 18° |
| 29 20° | 30 24° |
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Temperatures trend during September in Kalgoorlie/Boulder
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 23° /7° | 0 mm | 7 | |
| 2 Sept. | Sunny | 25° /9° | 0 mm | 8 | |
| 3 Sept. | Cloudy | 32° /15° | 0 mm | 8 | |
| 4 Sept. | Sunny | 22° /11° | 0 mm | 7 | |
| 5 Sept. | Patchy rain possible | 17° /7° | 0.1 mm | 5 | |
| 6 Sept. | Sunny | 17° /3° | 0 mm | 6 | |
| 7 Sept. | Partly cloudy | 20° /7° | 0 mm | 7 | |
| 8 Sept. | Sunny | 22° /8° | 0 mm | 7 | |
| 9 Sept. | Overcast | 23° /12° | 0 mm | 6 | |
| 10 Sept. | Partly cloudy | 23° /11° | 0 mm | 7 | |
| 11 Sept. | Overcast | 22° /8° | 0 mm | 6 | |
| 12 Sept. | Sunny | 24° /9° | 0 mm | 7 | |
| 13 Sept. | Sunny | 24° /9° | 0 mm | 7 | |
| 14 Sept. | Sunny | 21° /9° | 0 mm | 7 | |
| 15 Sept. | Patchy rain possible | 19° /8° | 0 mm | 5 | |
| 16 Sept. | Sunny | 21° /6° | 0 mm | 7 | |
| 17 Sept. | Sunny | 24° /9° | 0 mm | 7 | |
| 18 Sept. | Sunny | 28° /11° | 0 mm | 8 | |
| 19 Sept. | Cloudy | 20° /10° | 0 mm | 6 | |
| 20 Sept. | Partly cloudy | 22° /7° | 0 mm | 7 | |
| 21 Sept. | Sunny | 23° /8° | 0 mm | 7 | |
| 22 Sept. | Sunny | 24° /8° | 0 mm | 7 | |
| 23 Sept. | Partly cloudy | 26° /14° | 0.1 mm | 8 | |
| 24 Sept. | Patchy rain possible | 18° /11° | 0.1 mm | 5 | |
| 25 Sept. | Cloudy | 19° /8° | 0 mm | 5 | |
| 26 Sept. | Cloudy | 26° /10° | 1.6 mm | 7 | |
| 27 Sept. | Light rain shower | 21° /12° | 7.8 mm | 6 | |
| 28 Sept. | Sunny | 18° /7° | 0 mm | 6 | |
| 29 Sept. | Sunny | 20° /8° | 0 mm | 7 | |
| 30 Sept. | Partly cloudy | 24° /12° | 0 mm | 7 | |
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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.
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 ☀️
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