What to expect in Iguazu Falls in January
January is a mixed month in Iguazu Falls. You get 32° / 21°, but the biggest crowds of the year. Worth it for the right traveller.
Iguazu Falls weather in January
Typical conditions in Iguazu Falls during January, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 32°C 90°F |
|---|---|
| Average low | 21°C 70°F |
| Rainfall | Wet 170/100 |
| Total rainfall | 178 mm7.0 in |
| Rainy days | 10 |
| Daylight | 13 h 33 min |
| How it feels | Hot — midday shade matters |
Average highs sit around 32°C with lows near 21°C. Expect a fair amount of rain, so plan indoor backups.
Crowds & demand
Crowd levels are High for Iguazu Falls — the biggest crowds of the year.
Prices & value
This month counts as shoulder season: prices close to the yearly average.
What to pack
Lightweight, breathable clothes, strong sun protection and a refillable bottle — highs near 32°C make midday heat the main constraint. Add a compact rain shell and shoes you do not mind soaking; this is one of the wetter months.
What it costs
Costs in January sit around the yearly average for Iguazu Falls — neither a bargain nor a squeeze. Booking a few weeks out is usually enough.
Who this month suits
- Anyone travelling on a budget
- Visitors who want to catch a festival
- Families tied to school holidays
Events & what’s on
Look out for New Year's Eve while you’re there.
- New Year's Eve — Fireworks and lakeside parties mark New Year's Eve as Brazilian summer travelers fill the falls region.
Iguazu Falls in January compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| November | 30° / 19° | Moderate | $$ | 46 |
| December | 31° / 20° | Moderate | $$ | 33 |
| January · This month | 32° / 21° | High | $$ | 29 |
| February | 32° / 21° | Moderate | $$ | 41 |
| March | 30° / 20° | Moderate | $$ | 50 |
These months score higher for Iguazu Falls on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in January
If the destination is negotiable but the month is not, these places are at their best in January.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
