Perth
September
Weather in Perth for September 2025
Your guide to Perth weather in September - trends and predictions
In general, the average temperature in Perth at the beginning of September is 17.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10.1 °C by the end of September.
The climate of Perth in September is notably wet, with an average of 12 rainy days, and a total of 62.7 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
18
Dry days
12
Rainy days
0
Snow days
15°/7°
Temperatures
16 km/h
Avg max wind
80 %
Avg humidity
Perth in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  15° | 2  15° | 3 16° | 4  12° | 5  19° | 6  22° | 7 22° |
| 8  21° | 9 14° | 10 12° | 11 12° | 12 11° | 13 12° | 14 14° |
| 15 16° | 16 16° | 17 21° | 18 19° | 19 18° | 20 18° | 21 18° |
| 22 17° | 23  15° | 24 8° | 25 11° | 26 10° | 27 10° | 28 10° |
| 29 12° | 30 10° |
You can click on date
Access Perth weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Perth
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy rain possible | 15° /8° | 0.3 mm | 4 | |
| 2 Sept. | Moderate rain | 15° /12° | 19.8 mm | 4 | |
| 3 Sept. | Patchy rain possible | 16° /7° | 0.1 mm | 4 | |
| 4 Sept. | Light rain | 12° /5° | 2.4 mm | 3 | |
| 5 Sept. | Overcast | 19° /9° | 0 mm | 4 | |
| 6 Sept. | Sunny | 22° /12° | 0 mm | 6 | |
| 7 Sept. | Sunny | 22° /11° | 0 mm | 6 | |
| 8 Sept. | Partly cloudy | 21° /13° | 2.4 mm | 6 | |
| 9 Sept. | Patchy rain possible | 14° /10° | 4.2 mm | 3 | |
| 10 Sept. | Patchy rain possible | 12° /4° | 1.4 mm | 3 | |
| 11 Sept. | Patchy rain possible | 12° /4° | 0.2 mm | 3 | |
| 12 Sept. | Patchy rain possible | 11° /3° | 0.4 mm | 3 | |
| 13 Sept. | Patchy rain possible | 12° /1° | 1.9 mm | 3 | |
| 14 Sept. | Patchy rain possible | 14° /7° | 1.6 mm | 3 | |
| 15 Sept. | Patchy rain possible | 16° /7° | 0.1 mm | 4 | |
| 16 Sept. | Partly cloudy | 16° /5° | 0 mm | 5 | |
| 17 Sept. | Sunny | 21° /8° | 0 mm | 6 | |
| 18 Sept. | Sunny | 19° /9° | 0 mm | 5 | |
| 19 Sept. | Sunny | 18° /8° | 0 mm | 5 | |
| 20 Sept. | Sunny | 18° /7° | 0 mm | 5 | |
| 21 Sept. | Patchy rain possible | 18° /9° | 0 mm | 4 | |
| 22 Sept. | Partly cloudy | 17° /8° | 0 mm | 5 | |
| 23 Sept. | Mist | 15° /6° | 0 mm | 4 | |
| 24 Sept. | Light rain shower | 8° /5° | 19.4 mm | 2 | |
| 25 Sept. | Light rain shower | 11° /4° | 3.3 mm | 3 | |
| 26 Sept. | Light rain shower | 10° /6° | 3.4 mm | 3 | |
| 27 Sept. | Patchy rain possible | 10° /3° | 0.3 mm | 3 | |
| 28 Sept. | Patchy rain possible | 10° /1° | 0 mm | 3 | |
| 29 Sept. | Patchy rain possible | 12° /4° | 0.1 mm | 3 | |
| 30 Sept. | Light rain shower | 10° /7° | 1.5 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Perth 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 Perth forecast closer to your planned date for the most up-to-date weather information.
Perth in September - FAQ
What are the expected maximum and minimum temperatures in Perth during September?
During September, expect a variety of temperatures with highs around 15° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in Perth during September?
Moderate rainfall is anticipated in Perth during September, with a total of 62.7 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Perth during September?
The average wind speed in Perth during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Perth
Explore the daily rainfall trends and prepare for Perths September weather 💧
UV exposure in Perth during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
You are here
Where is Perth?Get accurate weather forecasts for Perth, located at latitude 56.395 and longitude -3.431. Stay updated with localized weather information tailored for Perth.
Found a mistake?
We appreciate your attention to details. Tell us here.