Wollongong
September
Weather in Wollongong for September 2026
Your guide to Wollongong weather in September - trends and predictions
Until now, September 2026 in Wollongong is slightly cooler than the historical average by 0.9 °C.
Expect cooler weather in the next days in Wollongong with the forecast suggesting a temperature of 17.6 °C, lower than the historical average.
In general, the average temperature in Wollongong at the beginning of September is 19.7 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 19.7 °C by the end of September.
Wollongong experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 35.9 mm.
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Temperatures
Rain 🌧️
More
20
Dry days
10
Rainy days
0
Snow days
20°/10°
Temperatures
20 km/h
Avg max wind
61 %
Avg humidity
Wollongong Weather September
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Temperatures trend during September in Wollongong
See the weather trend as well as the moving average line
September weather in Wollongong day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Sunny | 19° /10° | 0.7 mm | 5 | |
| 2 Sept. | Sunny | 20° /10° | 1 mm | 5 | |
| 3 Sept. | Sunny | 18° /9° | 0 mm | 5 | |
| 4 Sept. | Sunny | 19° /9° | 0 mm | 6 | |
| 5 Sept. |  Patchy rain possible | 21° /11° | 0.2 mm | 5 | |
| 6 Sept. | Sunny | 21° /10° | 0 mm | 6 | |
| 7 Sept. |  Partly cloudy | 20° /11° | 0.7 mm | 6 | |
| 8 Sept. |  Moderate rain at times | 21° /10° | 3.6 mm | 5 | |
| 9 Sept. | Sunny | 19° /10° | 0.4 mm | 5 | |
| 10 Sept. | Sunny | 16° /8° | 8.7 mm | 5 | |
| 11 Sept. | Sunny | 17° /9° | 2.6 mm | 5 | |
| 12 Sept. | Sunny | 18° /14° | 0 mm | 6.7 | |
| 13 Sept. | Sunny | 18° /15° | 0 mm | 6.6 | |
| 14 Sept. | Sunny | 20° /16° | 0 mm | 5.8 | |
| 15 Sept. | Sunny | 18° /12° | 5.3 mm | 6.7 | |
| 16 Sept. | Patchy rain possible | 15° /11° | 1.5 mm | 4 | |
| 17 Sept. | Patchy rain possible | 15° /11° | 0.8 mm | 5 | |
| 18 Sept. | Sunny | 17° /12° | 0 mm | 6 | |
| 19 Sept. | Sunny | 18° /15° | 0 mm | 6 | |
| 20 Sept. | Sunny | 21° /16° | 0 mm | 7 | |
| 21 Sept. | Patchy rain possible | 18° /16° | 0.1 mm | 6 | |
| 22 Sept. | Light rain shower | 17° /13° | 8.2 mm | 5 | |
| 23 Sept. | Patchy rain possible | 16° /13° | 0.2 mm | 6 | |
| 24 Sept. | Sunny | 17° /14° | 0.1 mm | 6 | |
| 25 Sept. | Sunny | 18° /15° | 0 mm | 6 | |
| 26 Sept. |  Thundery outbreaks possible | 20° /11° | 6.4 mm | 5 | |
| 27 Sept. | Light rain shower | 20° /12° | 1.1 mm | 5 | |
| 28 Sept. | Patchy rain possible | 19° /11° | 1.6 mm | 5 | |
| 29 Sept. | Sunny | 21° /12° | 0.7 mm | 5 | |
| 30 Sept. | Sunny | 23° /12° | 1.1 mm | 7 | |
| Next | |||||
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.
Change Month
Wollongong in September - FAQ
What are the expected maximum and minimum temperatures in Wollongong during September?
Enjoy moderate daytime temperatures of up to 20° 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 35.9 mm across approximately 10 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 20 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 💧
Typically, Wollongong has 10 rainy days in September with a total of 35.9 mm of rainfall.
UV exposure in Wollongong during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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