September · Australia
Best time to visit Adelaide in September Weather, crowds & prices
Weather in Adelaide in September
Average temperature 14°C, 56 mm of rain, about 28 days with 6+ hours of sunshine and 70% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.9/10
Ranked #9 of 12 months
- Avg temp
- 14°C
- Rainfall
- 56 mm
- Humidity
- 70%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Adelaide scores 8.9/10 for sightseeing and cultural travel - ranked #9 of 12. Expect around 14°C, 56 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Adelaide pairs a gridded parkland centre with wine regions and Gulf St Vincent beaches within an hour.
September in Adelaide — one of the year's strongest windows (9th)
Temperatures hover around 14°C (56°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 56 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 11.9 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Adelaide at 8.9/10 (9th of 12), just behind February at 10/10.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Budget for mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Adelaide in September?
- In September, Adelaide averages 14°C, 56 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.9/10.
- Is September a good time to visit Adelaide?
- September earns a 8.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Adelaide in September?
- Expect about 56 mm of rain in September. Average humidity is 70% and there are about 28 days with 6+ hours of sunshine.
Curated in Adelaide
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