Weather will likely play an important role when you plan your trip to Macapa, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually October and September, with an average temperature of 28°C, while the coldest months are January and February, with an average of 26°C. The rainiest months in Macapa are March, April, May and February, with each month seeing an average of 500 mm of rainfall.