September 11 is statistically one of the best days of the year in Cairns. With minimal rain risk (12%) and pleasant highs of 25°C, it's ideal for outdoor adventures. Expect a bustling atmosphere in Cairns right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Cairns
Currency
AUD
$ Australian dollar
Language
English
Driving
Left side
Safety
High Safety
GPI: 1.565
Cairns Weather Forecast for September 11
"Warm & Sunny. Expect average highs of 25.4°C. 12% chance of rain."
What to Wear in Cairns in September
Based on historical data for September 11, Cairns typically experiences temperatures between 20.3°C and 25.4°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (12% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Cairns
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
25.4°C
Daytime Peak
Average Low
20.3°C
Nighttime Low
Feels Like
26.3°C
☀️ Feels accurate
Rain Chance
12%
Avg 0.4mm if it rains
Cloud Cover
50%
Overcast
Pressure
1016.7 hPa
Low volatility
Cairns Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 86% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 22 min to burn
Type III-IV
🟡 33 min to burn
Type V-VI
🟢 55 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
20.6°C
Humid/Sticky
Heat Stress
Low
No heat warning
🙂 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Australia
Flight Traffic
High
98/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~78
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Cairns
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:17
☀️ Noon
12:15
🌇 Sunset
18:12
⏱️ Daylight
11h 55m
Wind Speed
16.3 km/h
Gentle breeze
Sunshine
10.6 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Cairns
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Cairns
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Cairns on September 11 averages 25.4°C with a 12% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Cairns Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 11) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Cairns Worth Visiting on September 11?
Planning a trip to Cairns on September 11? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 25.4°C with a 12% historical precipitation risk.
✈️ Travel Logistics: Approximately 78 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 24.7°C (swimming pool). Wave conditions are generally fun waves with heights around 1.01m.
📊 Historical Extremes: The hottest September 11 recorded in the last 30 years saw temperatures hit 27.1°C in 2022, while the coldest dropped to 18.4°C in 2019.