September 19 is generally a great time to visit Cairns. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 26°C weather. Cairns is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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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 19
"Warm & Sunny. Expect average highs of 25.9°C. 16% chance of rain."
What to Wear in Cairns in September
Based on historical data for September 19, Cairns typically experiences temperatures between 20.6°C and 25.9°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (16% 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
25.9°C
Daytime Peak
Average Low
20.6°C
Nighttime Low
Feels Like
26.9°C
☀️ Minor difference
Rain Chance
16%
Avg 0.5mm if it rains
Cloud Cover
50%
Overcast
Pressure
1016.4 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 85% 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
21.3°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
✅ Excellent Swimming 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
06:10
☀️ Noon
12:12
🌇 Sunset
18:13
⏱️ Daylight
12h 2m
Wind Speed
16.3 km/h
Gentle breeze
Sunshine
10.4 hrs
Direct Sun (Cloud-free)
Humidity
76%
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 19 averages 25.9°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 99/100."
— 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
Better Alternatives Nearby
Consider these dates within ±7 days
September 12
25.3°C • 14% rain
Score
100
September 13
25.4°C • 13% rain
Score
100
September 14
25.4°C • 15% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (September 19) in other destinations
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📍 Is Cairns Worth Visiting on September 19?
Planning a trip to Cairns on September 19? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 25.9°C with a 16% 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 24.6°C (swimming pool). Wave conditions are generally fun waves with heights around 0.83m.
📊 Historical Extremes: The hottest September 19 recorded in the last 30 years saw temperatures hit 28.6°C in 2022, while the coldest dropped to 19.1°C in 2019.