Iguazú · WinterMonth summary
Iguazú weather in January
✅ Good
🌡️ Temperature min / max
73°F – 90°F
🌧 Rainy days
54% of days
☀️ Sunshine
12.3h per day on average
🌊 🌊 Season
Winter
⭐ ⭐ Weather score
7.2/10
📅 📅 Best month
September (8.4/10)
Quick decision
Should you visit Iguazú in January?
✅ Good
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: January is a good time to visit Iguazú. September remains slightly better (+1.2 pts).
By trip type
Iguazú in January by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in January
Even in winter, Iguazú enjoys 32°F. A real asset for escaping the European cold. With 54% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. September (8.4/10) is significantly better if possible.
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Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 73°F | 90°F | 54% | 0.3in | 12.3h | 7.2/10 |
| 🌤️ February | 73°F | 90°F | 47% | 0.2in | 12.1h | 7.3/10 |
| 🌤️ March | 72°F | 88°F | 42% | 0.2in | 11.5h | 7.5/10 |
| 🌤️ April | 68°F | 82°F | 30% | 0.2in | 10.9h | 8.3/10 |
| 🌤️ May | 63°F | 77°F | 35% | 0.2in | 9.7h | 7.7/10 |
| 🌤️ June | 59°F | 73°F | 31% | 0.2in | 9.9h | 7.6/10 |
| 🌤️ July | 59°F | 75°F | 19% | 0.1in | 10.2h | 8.1/10 |
| ☀️ August | 59°F | 79°F | 23% | 0.1in | 10.7h | 8.3/10 |
| 🌤️ September | 64°F | 82°F | 28% | 0.1in | 11.0h | 8.4/10 |
| 🌤️ October | 66°F | 82°F | 46% | 0.3in | 11.2h | 7.8/10 |
| 🌤️ November | 70°F | 88°F | 36% | 0.2in | 12.8h | 7.7/10 |
| 🌤️ December | 72°F | 90°F | 48% | 0.2in | 13.0h | 7.4/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In January, Iguazú averages 90°F, 54% rainy days and 12.3h of sunshine per day. Overall weather score: 7.2/10.
See methodology →
Comparison
January vs September (best month)
The best month is September (score 8.4/10). Difference:
- 🌡️ Max temperature : -4°F
- 🌧 Rainy days : -26%
- ☀️ Sunshine : -1.3h/day
FAQ
FAQ — Iguazú in January
Is January a good time to visit Iguazú?
January is an acceptable time for Iguazú (score 7.2/10). Conditions are decent but not optimal — consider September (8.4/10) if possible.
Does it rain a lot in Iguazú in January?
Yes, 54% of days see rain in January. Plan some indoor activities as backup.
Accommodation
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Activities & tours
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