Mid-summer · Weather & things to do
Iguazú in January
Iguazú's warmest month brings highs averaging 89°F (32°C), lows of 74°F (24°C) and about 5.8 in (147 mm) of rain.
With a comfort score of 54/100 (11th of 12), it's one of the toughest months, held back mainly by cloud cover.
- Avg high
- 89°F (32°C)
- Avg low
- 74°F (24°C)
- Rain
- 5.8 in (147 mm)
- Humidity
- 73%
- Cloud cover
- 65%
- Daylight
- ~13 h 26 min
- Comfort score
- 54/100 · Fair
What January feels like
Expect proper heat: afternoons average 89°F (32°C), so plan walking and hiking for the morning and save midday for shade, lunch or a swim.
Even at night it stays warm, around 74°F (24°C).
Expect regular rain: about 5.8 in (147 mm) falls in the month.
Plan around January
January is one of the lower-scoring months here; the best are June – September.
- Comfort improves from 51/100 in December to 54/100.
- Our Buenos Aires, Mendoza & Iguazú route recommends Mar – May, Sep – Nov, so January falls outside its suggested window.
What to pack for January
- Light, breathable clothes89°F afternoons
- Sunscreen, sunglasses and a hatstrong sun this month
- Refillable water bottleeasy to dehydrate in the heat
- Rain jacket and waterproof shoes5.8 in of rain on average
- Comfortable walking shoesmost picks involve some walking
What to do in Iguazú in January
Start early and take shelter at midday: the picks below pair morning outings with places to cool off.
Gran Meliá Iguazú
Hotel inside the Argentine park whose bar and terrace look straight at the falls.
Why now Go early — afternoons average 89°F.
El Quincho del Tío Querido
Busy parrilla in Puerto Iguazú with grilled meats and live music most nights.
Why now A break from 89°F afternoons.
Aqva Restaurant
Puerto Iguazú restaurant serving river fish like surubí and regional dishes.
Why now Best first thing, before the 89°F afternoon heat.
Garganta del Diablo
U-shaped chasm where half the river plunges 80 m, reached by train and a long catwalk.
Parque Nacional do Iguaçu
Brazilian side with a panoramic trail facing the main falls and a walkway into the spray.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Iguazú in January: quick answers
Is January a good time to visit Iguazú?
It's one of the tougher months here, scoring 54/100, held back mainly by cloud cover. The best months are June – September. Expect highs of 89°F (32°C) and 5.8 in (147 mm) of rain. Our Buenos Aires, Mendoza & Iguazú route recommends Mar – May, Sep – Nov, so January is outside its suggested window.
How hot is Iguazú in January?
Average highs are 89°F (32°C) and average lows 74°F (24°C), making it the warmest month by daytime highs.
Does it rain a lot in Iguazú in January?
Yes: about 5.8 in (147 mm) of rain falls across January on average, the 5th-wettest month of the year. The annual total is about 63.5 in (1613 mm).
What should I pack for Iguazú in January?
Bring light, breathable clothes (89°F afternoons), sunscreen, sunglasses and a hat (strong sun this month), refillable water bottle (easy to dehydrate in the heat), rain jacket and waterproof shoes (5.8 in of rain on average) and comfortable walking shoes (most picks involve some walking).
Planning Iguazú in January?
Share this January plan with your group, poll everyone on dates and keep the packing list in one place.