This section of the Marañón is warm and generally dry; we travel through desert-like canyons and dry forests for the majority of the journey. Throughout the day you probably want sunscreen, long sleeves and a hat(while on side hikes) to protect from the sun.
While on the water, most people prefer quick dry pant (or shorts with legging) and a quick-dry shirt; however, if you are prone to feeling the cold then bring a thin wetsuit, wetsuit top or thermal top. You can also bring a rain jacket to wear in case the wind picks up or if we encounter a brief shower.
It is unlikely to have a day of rain throughout the dry season (May-Sep). However, it is possible to get a short-lived shower.
In the rainy season, it is much more likely to get several days of rain.