Iguazú Falls in December
Short answer: In December, Iguazú Falls averages about 1,473 m³/s, 75% of the October peak (high water). Over 2005-2024 daily flow in December ranged from 442 to 6,854 m³/s.
High water: 75% of peak
Flow depends on rain upstream in Brazil and can change within days; dams upstream also regulate it.
All months
| Month | Flow (share of peak) | Average m³/s | Level |
|---|---|---|---|
| January | 68% | 1,337 | Medium |
| February | 72% | 1,417 | Medium |
| March | 70% | 1,368 | Medium |
| April | 63% | 1,232 | Medium |
| May | 62% | 1,207 | Medium |
| June | 83% | 1,618 | High water |
| July | 72% | 1,413 | Medium |
| August | 60% | 1,178 | Medium |
| September | 70% | 1,376 | Medium |
| October | 100% | 1,957 | High water |
| November | 90% | 1,762 | High water |
| December | 75% | 1,473 | High water |
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Questions
Is Iguazú Falls worth visiting in December?
In December, Iguazú Falls averages about 1,473 m³/s, 75% of the October peak (high water). Over 2005-2024 daily flow in December ranged from 442 to 6,854 m³/s. Flow depends on rain upstream in Brazil and can change within days; dams upstream also regulate it.