The lowland rainforests 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 78F and 93F (24C and 31C) The average nighttime low is between 66F and 78 F (20C and 24C). Cold Fronts - May through 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. Rainy Months - November through April 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.