September 26 is generally a great time to visit Adelaide. While there is a slight chance of rain (15%), showers are usually brief. Expect comfortable 18°C weather. Adelaide is currently in its most popular travel window, meaning vibrant crowds and premium pricing. Note: September 26 is Friday before AFL Grand Final in Adelaide, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Adelaide
Currency
AUD
$ Australian dollar
Language
English
Driving
Left side
Connect
There is extensive free Wi-Fi access (po...
Safety
High Safety
GPI: 1.565
Adelaide Weather Forecast for September 26
"Mild & Comfortable. Expect average highs of 17.8°C. 15% chance of rain."
What to Wear in Adelaide in September
Based on historical data for September 26, Adelaide typically experiences temperatures between 10°C and 17.8°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (15% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Adelaide
Smart Suitcase
- Light Jacket
- Long Pants
Average High
17.8°C
Daytime Peak
Average Low
10°C
Nighttime Low
Feels Like
17.8°C
🌤️ Feels accurate
Rain Chance
15%
Avg 0.8mm if it rains
Cloud Cover
45%
Overcast
Pressure
1018.1 hPa
Medium volatility
Adelaide Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 93% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
07:00 - 10:00
16:00 - 19:00
Type I-II
🔴 24 min to burn
Type III-IV
🟡 36 min to burn
Type V-VI
🟢 60 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
11.8°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Holiday
Friday before AFL Grand Final
Flight Traffic
High
92/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~133
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Adelaide
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:31
☀️ Noon
13:38
🌇 Sunset
19:45
⏱️ Daylight
12h 13m
Wind Speed
22.4 km/h
Moderate wind
Sunshine
10.2 hrs
Direct Sun (Cloud-free)
Humidity
68%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Adelaide
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Adelaide
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Adelaide on September 26 averages 17.8°C with a 15% precipitation probability. Wedding/Outdoor Event Score: 98/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Adelaide Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 26) in other destinations
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📍 Is Adelaide Worth Visiting on September 26?
Planning a trip to Adelaide on September 26? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 17.8°C with a 15% historical precipitation risk.
🎉 Local Event: The date coincides with Friday before AFL Grand Final, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 133 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Australia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 15.8°C (polar plunge). Wave conditions are generally fun waves with heights around 0.72m.
📊 Historical Extremes: The hottest September 26 recorded in the last 30 years saw temperatures hit 22.5°C in 2018, while the coldest dropped to 5.8°C in 2024.