Wollongong
September
Weather in Wollongong for September 2025
Your guide to Wollongong weather in September - trends and predictions
In general, the average temperature in Wollongong at the beginning of September is 20.1 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 20.1 °C by the end of September.
Wollongong sees moderate rainfall in September, averaging 8 rainy days.
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22
Dry days
8
Rainy days
0
Snow days
21°/10°
Temperatures
19 km/h
Avg max wind
63 %
Avg humidity
Wollongong in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2  19° | 3  16° | 4 20° | 5 22° | 6 23° | 7 22° |
| 8  21° | 9 19° | 10 17° | 11 19° | 12  17° | 13 17° | 14 21° |
| 15  20° | 16 22° | 17 22° | 18 26° | 19 26° | 20 26° | 21 20° |
| 22 19° | 23 21° | 24 20° | 25 25° | 26  18° | 27 17° | 28 18° |
| 29 22° | 30 21° |
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Temperatures trend during September in Wollongong
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 | 19° /10° | 1 mm | 6 | |
| 2 Sept. | Partly cloudy | 19° /8° | 0.1 mm | 6 | |
| 3 Sept. | Sunny | 16° /6° | 0 mm | 6 | |
| 4 Sept. | Sunny | 20° /7° | 0 mm | 6 | |
| 5 Sept. | Patchy rain possible | 22° /10° | 0.4 mm | 6 | |
| 6 Sept. | Sunny | 23° /9° | 0 mm | 7 | |
| 7 Sept. | Partly cloudy | 22° /11° | 0.1 mm | 6 | |
| 8 Sept. | Moderate rain at times | 21° /9° | 6.3 mm | 6 | |
| 9 Sept. | Sunny | 19° /8° | 0 mm | 6 | |
| 10 Sept. | Sunny | 17° /7° | 0.1 mm | 5 | |
| 11 Sept. | Sunny | 19° /9° | 0.1 mm | 6 | |
| 12 Sept. | Cloudy | 17° /9° | 1.5 mm | 5 | |
| 13 Sept. | Sunny | 17° /8° | 0.2 mm | 5 | |
| 14 Sept. | Sunny | 21° /9° | 0.2 mm | 6 | |
| 15 Sept. | Overcast | 20° /9° | 0.2 mm | 5 | |
| 16 Sept. | Sunny | 22° /9° | 0 mm | 7 | |
| 17 Sept. | Sunny | 22° /9° | 0 mm | 7 | |
| 18 Sept. | Sunny | 26° /11° | 0 mm | 7 | |
| 19 Sept. | Sunny | 26° /14° | 0 mm | 7 | |
| 20 Sept. | Sunny | 26° /13° | 0 mm | 8 | |
| 21 Sept. | Patchy rain possible | 20° /10° | 0.4 mm | 6 | |
| 22 Sept. | Patchy rain possible | 19° /9° | 0.4 mm | 5 | |
| 23 Sept. | Cloudy | 21° /8° | 0 mm | 6 | |
| 24 Sept. | Sunny | 20° /9° | 0 mm | 6 | |
| 25 Sept. | Sunny | 25° /11° | 0 mm | 7 | |
| 26 Sept. | Thundery outbreaks possible | 18° /11° | 9.6 mm | 5 | |
| 27 Sept. | Light rain shower | 17° /11° | 1.7 mm | 4 | |
| 28 Sept. | Patchy rain possible | 18° /11° | 1.2 mm | 5 | |
| 29 Sept. | Sunny | 22° /12° | 0.3 mm | 6 | |
| 30 Sept. | Sunny | 21° /11° | 1.6 mm | 6 | |
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Important Notice
Our weather forecast for Wollongong 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 Wollongong forecast closer to your planned date for the most up-to-date weather information.
Wollongong in September - FAQ
What are the expected maximum and minimum temperatures in Wollongong during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Wollongong during September?
In September, Wollongong can expect light to moderate rainfall, totaling 20.8 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Wollongong during September?
The average wind speed in Wollongong during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Wollongong
Explore the daily rainfall trends and prepare for Wollongongs September weather 💧
UV exposure in Wollongong during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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