The months with the highest water flow at Iguazu Falls are typically between December and March. This period coincides with the rainy season in the region, which increases the volume of water coming from the Iguazu River. The rainfall during these months can lead to spectacular water flows, making the falls even more impressive. However, the water level can vary from year to year depending on weather
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Why this happens
- Rainy Season: The tropical climate in the Iguazu region causes a substantial amount of rainfall during the summer months. This is primarily due to the warm temperatures that create moisture-laden clouds, which then release rain.
- Increased Water Flow: The heavy rains lead to a higher volume of water flowing over the falls, often causing the waterfalls to become more powerful and louder than during the dry months. The falls’ flow rate can reach up to 12,750 cubic meters per second during peak rainy season.
Peak Water Flow
- The highest flow rates typically occur between January and March, with February often being the month with the most significant water volume. The falls at this time may appear extremely dramatic, with water cascading over the edges of the cliffs and creating a thick mist.
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Post-Rainy Season (April to November)
- After the rainy season, the flow begins to decrease gradually. However, the falls remain impressive year-round. While the water flow can still be high during April and May, it tends to stabilize and lower during the winter months of June to August, which are drier. This is the best time to visit if you prefer fewer crowds and less mist but still want to experience the falls.
Variations from Year to Year
- Water levels can vary depending on annual rainfall patterns, and sometimes even the rainy season itself can have irregularities. Long periods of drought or sudden floods can alter the flow unpredictably, affecting how the falls look.
So, if you’re planning a visit to see the falls in their most powerful form, the best months would be January, February, or March, during the peak rainy season. But if you’re looking for a quieter time with lower water levels, the dry season from June to August might be ideal.
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