Adelaide · AutumnMonth summary
Adelaide weather in September
✅ Good
🌡️ Temperature min / max
10°C – 16°C
🌧 Rainy days
39% of days
☀️ Sunshine
11.0h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.0/10
📅 📅 Best month
January (9.6/10)
Quick decision
Should you visit Adelaide in September?
✅ Good
✅ Yes if: you want to explore the city on foot without suffering from heat.
❌ No if: you're looking for a beach destination — water and air are still cool.
Our take: Adelaide in September: 16°C and 11.0h of sunshine. Decent, but not the peak.
By trip type
Adelaide in September by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Good period — 17°C with good sunshine. Reasonable crowds Autumn in Adelaide is often underrated: 16°C, golden light and declining crowds. An interesting window. Expect rain on 39% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. January (9.6/10) is significantly better if possible.
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Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 16°C | 28°C | 14% | 1.0 | 13.8h | 9.6/10 |
| ☀️ February | 16°C | 26°C | 10% | 0.9 | 12.4h | 9.1/10 |
| ☀️ March | 15°C | 25°C | 13% | 0.6 | 11.8h | 8.8/10 |
| 🌤️ April | 13°C | 21°C | 22% | 1.4 | 10.4h | 7.7/10 |
| ⛅ May | 11°C | 17°C | 34% | 2.2 | 9.4h | 7.0/10 |
| 🌦️ June | 9°C | 14°C | 43% | 3.2 | 8.8h | 5.2/10 |
| 🌦️ July | 8°C | 14°C | 44% | 3.0 | 9.1h | 5.3/10 |
| 🌦️ August | 9°C | 14°C | 44% | 3.0 | 9.9h | 5.6/10 |
| ⛅ September | 10°C | 16°C | 39% | 2.1 | 11.0h | 7.0/10 |
| 🌤️ October | 11°C | 19°C | 30% | 1.8 | 12.2h | 7.4/10 |
| 🌤️ November | 13°C | 21°C | 27% | 1.7 | 13.0h | 7.9/10 |
| ☀️ December | 14°C | 25°C | 15% | 0.9 | 13.8h | 9.1/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Adelaide averages 16°C, 39% rainy days and 11.0h of sunshine per day. Overall weather score: 7.0/10.
See methodology →
Comparison
September vs January (best month)
The best month is January (score 9.6/10). Difference:
- 🌡️ Max temperature : +12°C
- 🌧 Rainy days : -25%
- ☀️ Sunshine : +2.8h/day
FAQ
FAQ — Adelaide in September
Is September a good time to visit Adelaide?
September is an acceptable time for Adelaide (score 7.0/10). Conditions are decent but not optimal — consider January (9.6/10) if possible.
What to do in Adelaide in September?
With 16°C max and 11.0h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
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Activities & tours
Activities and tours in Adelaide
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