30YearWeather
Puerto Iguazú
When to avoid visiting Puerto Iguazú, Argentina
Seasonal Comparison

Least Favorable Months in Puerto Iguazú

Based on 30 years of NASA satellite data, Puerto Iguazú enjoys relatively good weather year-round. However, if you're comparing months, December, January, February are the least favorable — though still perfectly visitable.

December56/100January57/100February57/100

Good news: Puerto Iguazú has no truly bad months!

With a score of 56/100, even December(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in Puerto Iguazú, not objectively bad. Many travelers enjoy visiting during these periods and benefit from lower prices and fewer crowds.

Why December is the Least Favorable (But Still Okay) Time to Visit Puerto Iguazú

Is December a Good Time to Visit Puerto Iguazú?

👌Decent conditions for most activities
Short Answer

With 39°C apparent temperature (31°C actual, 76% humidity), December in Puerto Iguazú demands respect. Indoor attractions and water activities offer welcome relief.

Decision Factors

Oppressive heat and humidity

30.8°C with 76% humidity - challenging conditions

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.8°C

Heat index: 39°C due to 76% humidity

Peak tourist season

88% of annual peak - expect crowds and high prices

Health precautions needed

Be aware of: Leptospirosis, Chagas disease (American Trypanosomiasis), Dengue

Plenty of sunshine

10.9h of sunshine daily

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👨‍👩‍👧‍👦
    Families with children

    39°C heat index dangerous for children

  • 👴
    Elderly travelers

    Heat index of 39°C poses health risks

  • 🌡️
    Heat-sensitive visitors

    39°C feels-like temperature creates discomfort

930 observations30-year historical data
Confidence: 95%

Key Challenges During These Months

Extreme Heat

Temperatures can become dangerously hot with oppressive humidity

Months to Avoid: Detailed Breakdown

Worst56

December

Oppressive heat and humidity, Feels significantly hotter than 30.8°C

View details
2nd Worst57

January

Oppressive heat and humidity, Feels significantly hotter than 31.1°C

View details
3rd Worst57

February

Oppressive heat and humidity, Feels significantly hotter than 30.8°C

View details

Looking for the Best Time Instead?

Discover the optimal months to visit Puerto Iguazú with ideal weather conditions, fewer crowds, and better prices.

Best Time to Visit Puerto Iguazú

Frequently Asked Questions

When should I avoid visiting Puerto Iguazú?

Based on 30 years of data, the most challenging months are December, January, February. Primary concerns include: oppressive heat and humidity, feels significantly hotter than 30.8°c.

What is the worst month to visit Puerto Iguazú?

December is typically the most challenging month, scoring only 56/100 in our travel conditions analysis.

Can I still visit during these months?

Yes, many travelers still visit during challenging months. Come prepared with appropriate gear, flexible bookings, and backup plans. Lower prices and fewer tourists can offset the weather challenges.

Are hotels cheaper during these months?

Often yes. Low season typically means reduced hotel rates, easier reservations, and fewer crowds at popular attractions. Some travelers prefer this trade-off.