December 20 sees frequent showers in Puerto Iguazú. Historical data shows a 43% chance of rain, so pack accordingly. Temperatures average 31°C. Puerto Iguazú is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Puerto Iguazú
Currency
ARS
$ Argentine peso
Language
Guaraní
+1 more
Driving
Right side
Safety
High Safety
GPI: 1.911
Puerto Iguazú Weather Forecast for December 20
"Warm & Sunny. Expect average highs of 31°C. 43% chance of rain."
What to Wear in Puerto Iguazú in December
Based on historical data for December 20, Puerto Iguazú typically experiences temperatures between 22.2°C and 31°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 43% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Puerto Iguazú
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
31°C
Daytime Peak
Average Low
22.2°C
Nighttime Low
Feels Like
39.5°C
🔥 Heat index effect
Rain Chance
43%
Avg 4.6mm if it rains
Cloud Cover
52%
Moderate rain
Pressure
1009.5 hPa
Low volatility
Puerto Iguazú Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 75% 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 - 19:00
Type I-II
🔴 11 min to burn
Type III-IV
🟡 17 min to burn
Type V-VI
🟢 28 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.3°C
Humid/Sticky
Heat Index
39.5°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Argentina
Flight Traffic
High
88/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~22
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Puerto Iguazú
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:45
☀️ Noon
12:37
🌇 Sunset
19:29
⏱️ Daylight
13h 44m
Wind Speed
13.8 km/h
Gentle breeze
Sunshine
10.9 hrs
Direct Sun (Cloud-free)
Humidity
76%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Puerto Iguazú
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 Puerto Iguazú
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, Puerto Iguazú on December 20 averages 31°C with a 43% precipitation probability. Wedding/Outdoor Event Score: 82/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Puerto Iguazú Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
December 15
30.6°C • 30% rain
Score
90
December 17
31°C • 31% rain
Score
89
December 14
30.5°C • 33% rain
Score
88
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Puerto Iguazú Worth Visiting on December 20?
Planning a trip to Puerto Iguazú on December 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 31°C with a 43% historical precipitation risk.
✈️ Travel Logistics: Approximately 22 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 8 vaccinations are recommended for Argentina, including COVID-19.
📊 Historical Extremes: The hottest December 20 recorded in the last 30 years saw temperatures hit 35.7°C in 2021, while the coldest dropped to 19.3°C in 2022.