Weather in Adelaide in September
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Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for September in Adelaide.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youAdelaide in September is pleasantly mild — daytime temperatures average 17.8°C, dropping to 9.9°C at night. The month is moderately rainy (10 rainy days), with roughly 9.7 hours of sunshine a day. It is one of the best months of the year to visit. For the complete picture, see the best time to visit Adelaide — every month compared. Once you know when to go, find your Adelaide packing list at 247PackingList.
Get ready for Adelaide in September
Search flights to Adelaide
Compare 100+ airlines for September — one search, best price.
Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →What to pack for Adelaide in September
- Warm layers
- Light jacket or fleece
- Comfortable walking shoes
- Light waterproof layer
Compare all months in Adelaide
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 27.4°C | 32.4mm | 10/10 |
| February | 26.0°C | 38.3mm | 10/10 |
| March | 24.4°C | 22.8mm | 10/10 |
| April | 21.2°C | 65.5mm | 10/10 |
| May | 17.0°C | 73.7mm | 10/10 |
| June | 14.8°C | 129.4mm | 9/10 |
| July | 13.8°C | 85.9mm | 10/10 |
| August | 14.9°C | 93.4mm | 10/10 |
| September | 17.8°C | 57.0mm | 10/10 |
| October | 19.2°C | 70.0mm | 10/10 |
| November | 22.6°C | 56.3mm | 10/10 |
| December | 24.7°C | 28.2mm | 10/10 |
Full month-by-month guide: best time to visit Adelaide →
For facts about Australia — currency, language and dialling code — see our Australia country guide at 247CountryInfo. Travellers also find it useful to keep a Adelaide travel guide to hand. Check clothing sizes in Australia before you shop.
Frequently Asked Questions
Is September a good time to visit Adelaide?
September rates 10/10 for visiting Adelaide — excellent time to visit. Expect average highs of 17.8°C, 57.0mm of rain across the month and about 9.7 hours of daily sunshine.
What is the temperature in Adelaide in September?
In September, Adelaide has average highs of 17.8°C (64.0°F) and average lows of 9.9°C (49.8°F).
Does it rain in Adelaide in September?
Not much. September averages just 57.0mm of rain in Adelaide — the odd shower is possible but most days stay dry.
What should I wear in Adelaide in September?
For Adelaide in September (17.8°C highs / 9.9°C lows), pack warm layers plus light jacket or fleece, comfortable walking shoes, light waterproof layer.
More essentials for Adelaide in September
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.