Weather will likely play an important role when you plan your trip to Puerto Bolívar, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and February, with an average temperature of 25°C, while the coldest months are August and September, with an average of 23°C. The rainiest months in Puerto Bolívar are March, February, April and January, with each month seeing an average of 260 mm of rainfall.