Iquitos is located midst of the Amazon rainforest, making it a hot and humid travel destination. The Amazon has a dry and a rainy season. You can visit Iquitos all year round with both seasons offering different, but equally worthwhile experiences. Most people, however, prefer traveling to Iquitos during the dry season.
The dry season, also referred as the low-water season, lasts from June to October. During this time, rivers have less water and jungles are drier, allowing for more on-foot exploration. Since it is the sunnier season, humidity and temperatures are the highest peaking between 31°C-37°C (88°F-98°F). Rainfalls during the dry season are not uncommon, but less often compared to the rainy season.
The rainy season, consequently referred as the high-water season, lasts from November to May. During this time, the already wide rivers span across the dense jungles of the rainforest. Explorations are mainly by boat, therefore less walking is required. Humidity and temperatures are slightly lower peaking between 30°C-33°C (86°F-91°F). Because it is the rainy season, precipitation is more common. Still showers are rather short but intense. In turn, more flowers and fruits grow that attract animals, making it easier to spot wildlife from the boat.
During our visit in early October, the weather felt like spending a mid-summer day in the desert. At night, before sunrise and when it rained occasionally, however, temperatures were cooler and quite acceptable. Be aware that there is no best time to have an easy walk through the jungles.
While the dry season is an ideal season to explore the rainforest with the least rain by foot, the rainy season benefits from the possibility to explore a wider area by boat. In both seasons Iquitos and the Amazon are not too heavily crowded, with even less tourists traveling to Iquitos during the rainy season.