Kwinana
September
Weather in Kwinana for September 2025
Your guide to Kwinana weather in September - trends and predictions
In general, the average temperature in Kwinana at the beginning of September is 17 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 18.6 °C by the end of September.
The climate of Kwinana in September is notably wet, with an average of 13 rainy days.
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17
Dry days
13
Rainy days
0
Snow days
18°/14°
Temperatures
30 km/h
Avg max wind
70 %
Avg humidity
Kwinana in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | 2 18° | 3  16° | 4 17° | 5 17° | 6 16° | 7  17° |
| 8  19° | 9 17° | 10 19° | 11  20° | 12 21° | 13  20° | 14 20° |
| 15 19° | 16 19° | 17 18° | 18 18° | 19 17° | 20 17° | 21 18° |
| 22 19° | 23 17° | 24 18° | 25 18° | 26 20° | 27 21° | 28 18° |
| 29 17° | 30 18° |
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Temperatures trend during September in Kwinana
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. | Light rain shower | 18° /14° | 4.3 mm | 5 | |
| 2 Sept. | Light rain shower | 18° /13° | 3.5 mm | 6 | |
| 3 Sept. | Moderate or heavy rain shower | 16° /13° | 10.7 mm | 4 | |
| 4 Sept. | Light rain shower | 17° /14° | 6.5 mm | 5 | |
| 5 Sept. | Light rain shower | 17° /13° | 11.6 mm | 4 | |
| 6 Sept. | Light rain shower | 16° /11° | 3.1 mm | 5 | |
| 7 Sept. | Sunny | 17° /9° | 0.4 mm | 5 | |
| 8 Sept. | Overcast | 19° /11° | 0 mm | 6 | |
| 9 Sept. | Light rain shower | 17° /13° | 0.7 mm | 5 | |
| 10 Sept. | Patchy rain possible | 19° /13° | 0.2 mm | 5 | |
| 11 Sept. | Partly cloudy | 20° /12° | 0 mm | 6 | |
| 12 Sept. | Overcast | 21° /15° | 0 mm | 6 | |
| 13 Sept. | Moderate or heavy rain with thunder | 20° /14° | 10.8 mm | 6 | |
| 14 Sept. | Overcast | 20° /14° | 0 mm | 6 | |
| 15 Sept. | Overcast | 19° /15° | 0 mm | 6 | |
| 16 Sept. | Patchy rain possible | 19° /13° | 0.6 mm | 6 | |
| 17 Sept. | Sunny | 18° /12° | 0 mm | 6 | |
| 18 Sept. | Overcast | 18° /11° | 0.1 mm | 5 | |
| 19 Sept. | Patchy rain possible | 17° /12° | 0.6 mm | 5 | |
| 20 Sept. | Patchy rain possible | 17° /10° | 0.1 mm | 5 | |
| 21 Sept. | Partly cloudy | 18° /10° | 0 mm | 6 | |
| 22 Sept. | Partly cloudy | 19° /12° | 0 mm | 6 | |
| 23 Sept. | Patchy rain possible | 17° /12° | 0.2 mm | 5 | |
| 24 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 25 Sept. | Partly cloudy | 18° /10° | 0 mm | 5 | |
| 26 Sept. | Sunny | 20° /13° | 0.2 mm | 6 | |
| 27 Sept. | Sunny | 21° /13° | 4.2 mm | 6 | |
| 28 Sept. | Sunny | 18° /14° | 0.3 mm | 6 | |
| 29 Sept. | Partly cloudy | 17° /12° | 0.1 mm | 5 | |
| 30 Sept. | Light rain shower | 18° /13° | 0.5 mm | 5 | |
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Important Notice
Our weather forecast for Kwinana 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 Kwinana forecast closer to your planned date for the most up-to-date weather information.
Kwinana in September - FAQ
What are the expected maximum and minimum temperatures in Kwinana during September?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Kwinana during September?
Moderate rainfall is anticipated in Kwinana during September, with a total of 80.2 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Kwinana during September?
The average wind speed in Kwinana during September is 30 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Kwinana
Explore the daily rainfall trends and prepare for Kwinanas September weather 💧
UV exposure in Kwinana during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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