Puerto Iguazú Weather in December
In Puerto Iguazú, December brings very high daytime temperatures around 32°C (90°F), with nights cooling to 21°C (70°F). This month falls within the rainy season, so expect frequent rainfall.
Rainfall in Puerto Iguazú in December
As part of the rainy season, Puerto Iguazú sees around 9 days of rain in December, with an average of 199 mm (7.8 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Puerto Iguazú in December
December in Puerto Iguazú brings very high temperatures, with highs of 32°C (90°F) and nights around 21°C (70°F). Mornings and evenings are often more comfortable than the peak afternoon hours. With overnight lows of 21°C (70°F), evenings stay pleasantly warm.
Sunshine in Puerto Iguazú in December
There are approximately 210 hours of sunshine this month, despite being the rainy season. Rain often arrives in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, it could still be a nice time to visit.December in Puerto Iguazú can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Puerto Iguazú's climate page.
Puerto Iguazú Temperature in December
Min Temperature
21°C (70°F)
Max Temperature
32°C (90°F)
Chance of Rain
28%
Precipitation
199 mm (7.8 in)
Rainy days
9 days
Humidity
76%
Sunshine
210 hours
Percentage Sunshine
49%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Puerto Iguazú typically stay consistent throughout December, with daily highs averaging around 32°C (90°F). Nights are warm, with lows typically ranging from 19°C (66°F) to 21°C (70°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Puerto Iguazú in December
Browse day-by-day weather records for Puerto Iguazú spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Puerto Iguazú historical weather extremes in December
Based on weather observations in Puerto Iguazú between 1976 and 2025, these are the recorded extremes during December.
- The hottest December day on record in Puerto Iguazú reached 40°C (104°F) (December 9, 1985).
- The coldest December day was on December 13, 2010, with a maximum of 20°C (68°F).
- The coldest night in December in Puerto Iguazú was on December 14, 2010, with a minimum of 8°C (46°F).
Best Places in Argentina in December
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Puerto Iguazú in December
Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Puerto Iguazú in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our Puerto Iguazú's climate page.
Temperature Rainfall Sunshine Humidity
See the full Puerto Iguazú climate overview or explore weather in Argentina.
