January · Argentina
Best time to visit Iguazu Falls in January Weather, crowds & prices
Weather in Iguazu Falls in January
Average temperature 26°C, 198 mm of rain, about 29 days with 6+ hours of sunshine and 75% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
5.7/10
Ranked #12 of 12 months
- Avg temp
- 26°C
- Rainfall
- 198 mm
- Humidity
- 75%
- Days with 6h+ sun
- 29
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
January in Iguazu Falls scores 5.7/10 for nature and wildlife travel - ranked #12 of 12. Expect around 26°C, 198 mm of rain, and roughly 29 days with 6+ hours of sunshine this month.
Iguazú Falls spans the Argentina-Brazil border, with walkways above and below the river's main cascades.
January in Iguazu Falls — workable with trade-offs
Days in January average 26°C (79°F) and humidity near 75% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
198 mm of rain makes this a wet month here, though with about 29 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 5.7/10 on the same scale — 12th of 12 months, versus 8.7/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella, footwear you can get muddy.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, August is materially better in Iguazu Falls — 3 points higher on the same scale.
Frequently asked
- What is the weather like in Iguazu Falls in January?
- In January, Iguazu Falls averages 26°C, 198 mm of rain, and about 29 days with 6+ hours of sunshine. Its climate-comfort score is 5.7/10.
- Is January a good time to visit Iguazu Falls?
- January earns a 5.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Iguazu Falls in January?
- Expect about 198 mm of rain in January. Average humidity is 75% and there are about 29 days with 6+ hours of sunshine.
Curated in Iguazu Falls
Tickets & experiences
Things to do in Iguazu Falls
Iguazu Falls, Argentina. Live activities and tours from GetYourGuide, matched to this destination.