Weather The lowland rain forests of Tambopata lie far enough south of the Equator to provide a cooler, drier winter season between May and October. The general weather conditions, are warm and humid. In Tambopata the average daytime high temperature is between 78° and 93° F (24° and 31°C) and the average nighttime low is between 66° and 78° F (20° and 24°C). Nevertheless between May and September, cold fronts from Argentina can sweep into southwestern Amazonia and push daytime highs down to 50° F (9° C) and the nighttime lows to 43° F (5° C). Thus, during that season always be potentially prepared for cold and drizzle. During the rainy months of November through April, always be prepared for heavy rain that can continue for hours or days. Around 80% of the annual average 3000 mm rainfall occurs during this season.