🇦🇷 Iguazú Falls vs Rio de Janeiro 🇧🇷
Iguazú Falls, Argentina vs Rio de Janeiro, Brazil — a side-by-side climate comparison to help you pick. Both cities run similar average temperatures year-round. Rio de Janeiro is drier, with roughly 67 fewer rainy days a year.
Climate at a glance
| 🇦🇷 Iguazú Falls | 🇧🇷 Rio de Janeiro | |
|---|---|---|
| Avg annual high | 27°C | 27°C |
| Hottest month | January (31°C) | January (30°C) |
| Coldest month | July (13°C low) | July (18°C low) |
| Rainy days / year | 197 | 130 |
| Snow | Rare | Rare |
| Best months to visit | June, July, August | June, July, August |
🇦🇷 Iguazú Falls
Best around June, July, August. Hottest in January (31°C), coldest lows in July (13°C).
🇧🇷 Rio de Janeiro
Best around June, July, August. Hottest in January (30°C), coldest lows in July (18°C).
Frequently asked questions
Is Iguazú Falls or Rio de Janeiro warmer?
Iguazú Falls and Rio de Janeiro have very similar average temperatures.
Which is rainier, Iguazú Falls or Rio de Janeiro?
Iguazú Falls is rainier — Rio de Janeiro sees about 67 fewer rainy days per year.
When is the best time to visit Iguazú Falls vs Rio de Janeiro?
Iguazú Falls is best around June, July, August; Rio de Janeiro is best around June, July, August.