December 12 is generally a great time to visit Cairns. While there is a slight chance of rain (30%), showers are usually brief. Expect comfortable 29°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 December 12
"Warm & Sunny. Expect average highs of 29.4°C. 30% chance of rain."
What to Wear in Cairns in December
Based on historical data for December 12, Cairns typically experiences temperatures between 24.5°C and 29.4°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 30% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Cairns
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29.4°C
Daytime Peak
Average Low
24.5°C
Nighttime Low
Feels Like
35.9°C
🔥 Heat index effect
Rain Chance
30%
Avg 2.3mm if it rains
Cloud Cover
63%
Light drizzle
Pressure
1009.5 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 76% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30+ required, seek shade
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 13 min to burn
Type III-IV
🟡 20 min to burn
Type V-VI
🟢 33 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.6°C
Humid/Sticky
Heat Index
35.9°C
Feels hotter
😕 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
95/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~76
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Cairns
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:38
☀️ Noon
12:11
🌇 Sunset
18:45
⏱️ Daylight
13h 7m
Wind Speed
13.9 km/h
Gentle breeze
Sunshine
10.9 hrs
Direct Sun (Cloud-free)
Humidity
80%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Cairns
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Cairns
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
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 December 12 averages 29.4°C with a 30% precipitation probability. Wedding/Outdoor Event Score: 90/100."
— 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
December 7
29.4°C • 21% rain
Score
94
December 8
29.4°C • 21% rain
Score
94
December 9
29.4°C • 20% rain
Score
94
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 12) in other destinations
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📍 Is Cairns Worth Visiting on December 12?
Planning a trip to Cairns on December 12? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.4°C with a 30% historical precipitation risk.
✈️ Travel Logistics: Approximately 76 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 29.3°C (hot soup). Wave conditions are generally fun waves with heights around 0.74m.
📊 Historical Extremes: The hottest December 12 recorded in the last 30 years saw temperatures hit 31°C in 2024, while the coldest dropped to 23.4°C in 2025.