Weather & Climate – The Amazon Rainforest
Geographically the tropics are located between the Tropic of Cancer and the Tropic of Capricorn- the limits of the sun reaching the zenith. In the Amazon, the climate is always hot and humid, with the temperature averaging 27.9˚C during the dry season and 25.8˚C in the rainy season.
In the Ecuadorian Amazon basin, precipitation is 3000 mm or more. About half of the precipitation is brought to the basin by eastern trade winds, while the other half is the result of evapo - transpiration from the vast forest that covers the basin.
The driest months are November, December and January, and the highest precipitation, February, March, April and May.
There is a time in the year when the temperature drops down to 17˚C / 62 ˚F in the rainforest about a week, it is known as "cold spell" when the influence of the winds from the Antartica cools down the Amazon basin.