Taking the local weather in San Martín de Amacayacu into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually September and October, with an average temperature of 26°C, while the coldest months are July and June, with an average of 25°C. The rainiest months in San Martín de Amacayacu are March, January, February and December, with each month seeing an average of 386 mm of rainfall.