New South Wales (Sydney)
September
Weather in New South Wales for September 2025
Your guide to New South Wales weather in September - trends and predictions
In general, the average temperature in New South Wales at the beginning of September is 19.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 20 °C by the end of September.
New South Wales sees moderate rainfall in September, averaging 7 rainy days.
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23
Dry days
7
Rainy days
0
Snow days
20°/13°
Temperatures
24 km/h
Avg max wind
62 %
Avg humidity
New South Wales in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2  19° | 3  15° | 4 19° | 5  22° | 6  23° | 7 21° |
| 8  22° | 9 19° | 10 17° | 11 19° | 12  18° | 13 17° | 14 20° |
| 15 19° | 16 22° | 17 23° | 18 25° | 19 26° | 20 26° | 21 21° |
| 22 19° | 23 21° | 24 20° | 25 24° | 26  19° | 27 17° | 28 18° |
| 29 22° | 30 20° |
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Temperatures trend during September in New South Wales
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 | 20° /12° | 1.2 mm | 6 | |
| 2 Sept. | Overcast | 19° /11° | 0.1 mm | 6 | |
| 3 Sept. | Partly cloudy | 15° /10° | 0 mm | 5 | |
| 4 Sept. | Partly cloudy | 19° /9° | 0 mm | 6 | |
| 5 Sept. | Moderate rain at times | 22° /12° | 0.6 mm | 6 | |
| 6 Sept. | Sunny | 23° /12° | 0 mm | 7 | |
| 7 Sept. | Partly cloudy | 21° /13° | 0.2 mm | 6 | |
| 8 Sept. | Patchy light rain | 22° /12° | 3.4 mm | 6 | |
| 9 Sept. | Sunny | 19° /11° | 0 mm | 6 | |
| 10 Sept. | Sunny | 17° /10° | 0.1 mm | 5 | |
| 11 Sept. | Sunny | 19° /11° | 0.1 mm | 6 | |
| 12 Sept. | Cloudy | 18° /12° | 2 mm | 5 | |
| 13 Sept. | Sunny | 17° /11° | 0.6 mm | 5 | |
| 14 Sept. | Sunny | 20° /11° | 0.1 mm | 7 | |
| 15 Sept. | Overcast | 19° /11° | 0.6 mm | 5 | |
| 16 Sept. | Sunny | 22° /12° | 0.1 mm | 7 | |
| 17 Sept. | Sunny | 23° /13° | 0 mm | 7 | |
| 18 Sept. | Sunny | 25° /12° | 0 mm | 7 | |
| 19 Sept. | Sunny | 26° /15° | 0 mm | 7 | |
| 20 Sept. | Sunny | 26° /15° | 0 mm | 8 | |
| 21 Sept. | Patchy rain possible | 21° /13° | 0.1 mm | 6 | |
| 22 Sept. | Light rain shower | 19° /13° | 0.4 mm | 5 | |
| 23 Sept. | Patchy rain possible | 21° /12° | 0.1 mm | 6 | |
| 24 Sept. | Partly cloudy | 20° /12° | 0 mm | 6 | |
| 25 Sept. | Sunny | 24° /13° | 0.1 mm | 7 | |
| 26 Sept. | Thundery outbreaks possible | 19° /13° | 14.4 mm | 5 | |
| 27 Sept. | Thundery outbreaks possible | 17° /13° | 2.1 mm | 5 | |
| 28 Sept. | Patchy rain possible | 18° /14° | 0.9 mm | 5 | |
| 29 Sept. | Sunny | 22° /14° | 0.8 mm | 6 | |
| 30 Sept. | Sunny | 20° /14° | 2.2 mm | 6 | |
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Important Notice
Our weather forecast for New South Wales 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 New South Wales forecast closer to your planned date for the most up-to-date weather information.
New South Wales in September - FAQ
What are the expected maximum and minimum temperatures in New South Wales during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in New South Wales during September?
Expect minimal rainfall in New South Wales during September, with a total of 14.3 mm over approximately 7 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in New South Wales during September?
The average wind speed in New South Wales during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in New South Wales
Explore the daily rainfall trends and prepare for New South Waless September weather 💧
UV exposure in New South Wales during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Provinces in New South Wales
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Armidale RegionalBathurst RegionalBroken Hill MunicipalityCampbelltown MunicipalityCessnockCity of SydneyClarence ValleyCoffs HarbourFairfieldGoulburn MulwareeGriffithHilltopsHornsby ShireInverellKu-ring-gaiLismore MunicipalityMaitland MunicipalityMid-CoastMid-Western RegionalMuswellbrookNewcastleNorthern BeachesOrange MunicipalityParkesParramattaPort Macquarie-HastingsRichmond ValleySnowy Monaro RegionalTamworth MunicipalityWestern Plains RegionalWingecarribeeWollongong
Top locations in New South Wales
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Where is New South Wales?Get accurate weather forecasts for New South Wales, located at latitude -33.868 and longitude 151.207. Stay updated with localized weather information tailored for New South Wales.
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