Puerto Iguazú

Misiones Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Misiones, Argentina in December.

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Puerto Iguazú Posadas El Soberbio Oberá

Thinking about venturing to Misiones, Argentina this December and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Misiones in December

Misiones, Argentina is a region in Argentina. December in Misiones generally has very warm temperatures, with heavy precipitation. The month of December is in the summer season.

Temperatures

You can expect very warm maximum daytime temperatures of around 32°C (90°F) and nighttime temperatures around 21°C (70°F) in Puerto Iguazú. While the given temperatures for day and night are typical, there may be days that feel warmer. Make sure you're dressed in a way that keeps you cool and comfortable.

For specific regional insights in Misiones, Argentina, refer to the map provided below.

Precipitation

In December, precipitation varies across different areas. From heavy rainfall in Posadas with an average of 174 mm (6.9 in) to heavy rainfall in Puerto Libertad with 201 mm (7.9 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. Puerto Iguazú sees close to 210 hours of sunlight, making it great for sun lovers.

Explore Misiones by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Misiones in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Misiones.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Misiones

What is the weather like in December for some of the most popular destinations in Misiones, Argentina?

Temperature range in Misiones (December)

Precipitation variation in Misiones (December)

Puerto Iguazú

In December Puerto Iguazú generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« November
December
January »
November
December
January
Max temperature
31°C (88°F)
32°C (90°F)
32°C (90°F)
Min temperature
19°C (66°F)
21°C (70°F)
22°C (72°F)
Monthly sun hours
190 hours
210 hours
198 hours
Monthly rainfall
167 mm (6.6 in)
199 mm (7.8 in)
170 mm (6.7 in)
Monthly rainy days
9 days
9 days
10 days
Weather conditions
tolerable
unpleasant
tolerable
Climate in Puerto Iguazú →

Posadas

In December Posadas generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
31°C (88°F)
32°C (90°F)
33°C (91°F)
Min temperature
19°C (66°F)
21°C (70°F)
22°C (72°F)
Monthly sun hours
153 hours
271 hours
255 hours
Monthly rainfall
165 mm (6.5 in)
174 mm (6.9 in)
146 mm (5.7 in)
Monthly rainy days
9 days
8 days
10 days
Weather conditions
tolerable
tolerable
tolerable
Climate in Posadas →

El Soberbio

In December El Soberbio generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« November
December
January »
November
December
January
Max temperature
30°C (86°F)
31°C (88°F)
32°C (90°F)
Min temperature
17°C (63°F)
19°C (66°F)
20°C (68°F)
Monthly rainfall
177 mm (7 in)
191 mm (7.5 in)
167 mm (6.6 in)
Monthly rainy days
11 days
10 days
13 days
Weather conditions
tolerable
unpleasant
tolerable
Climate in El Soberbio →

Oberá

In December Oberá generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
30°C (86°F)
32°C (90°F)
32°C (90°F)
Min temperature
17°C (63°F)
20°C (68°F)
21°C (70°F)
Monthly rainfall
174 mm (6.9 in)
179 mm (7 in)
174 mm (6.9 in)
Monthly rainy days
9 days
9 days
11 days
Weather conditions
tolerable
tolerable
tolerable
Climate in Oberá →

San Ignacio

In December San Ignacio generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

« November
December
January »
November
December
January
Max temperature
31°C (88°F)
32°C (90°F)
33°C (91°F)
Min temperature
18°C (64°F)
20°C (68°F)
21°C (70°F)
Monthly sun hours
153 hours
271 hours
255 hours
Monthly rainfall
169 mm (6.7 in)
178 mm (7 in)
161 mm (6.3 in)
Monthly rainy days
9 days
8 days
10 days
Weather conditions
tolerable
tolerable
tolerable
Climate in San Ignacio →

Is your destination not in the list? Have a look at all destinations in Misiones, in Argentina.

In our records: Argentina December extremes

Notable December records observed across cities in Argentina in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest December day in Argentina reached 48°C (118°F) in Santiago del Estero on December 19, 1995.

Popular cities in December

Day & night temperatures, rainfall and average weather in Misiones in December.

City Weather Day temp Night temp Rainfall
Puerto Iguazú 32°C (90°F) 21°C (70°F) 199 mm (7.8 in)
Posadas 32°C (90°F) 21°C (70°F) 174 mm (6.9 in)
El Soberbio 31°C (88°F) 19°C (66°F) 191 mm (7.5 in)
Oberá 32°C (90°F) 20°C (68°F) 179 mm (7 in)
San Ignacio 32°C (90°F) 20°C (68°F) 178 mm (7 in)
Saltos del Moconá 31°C (88°F) 19°C (66°F) 189 mm (7.4 in)

Misiones weather in December: frequently asked questions

What is the weather like in Misiones, Argentina in December?

December in Misiones, Argentina brings poor weather. In Puerto Iguazú, daytime temperatures are typically around 32°C (90°F) and nighttime lows hover near 21°C (70°F).

What is the average temperature in Misiones, Argentina in December?

Daytime temperatures in Puerto Iguazú peak at roughly 32°C (90°F) in December, dropping to about 21°C (70°F) overnight.

Does Misiones, Argentina get a lot of rain in December?

Expect plenty of rainfall. Puerto Iguazú records an average of 199 mm (7.8 in) in December, putting it among the wetter months for Misiones, Argentina.

Is December a Good Time to Visit Misiones, Argentina?

Given the typically unpleasant weather conditions in Puerto Iguazú, December may not be the ideal time to visit Misiones, Argentina.

Generally speaking, the best visiting conditions can be found in August offering mostly perfect weather in Puerto Iguazú. On the other hand, the months of February, October and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Misiones.

Weather and climate has detailed information for every country in the world. Are you going to Argentina? Get detailed historical weather averages for many cities in Argentina.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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