| State | Capital | Annual Avg (mm) | Wettest quarter | |-------|---------|----------------|------------------| | Amazonas | Manaus | 2,300 | Dec–Feb | | Pará | Belém | 2,900 | Jan–Mar | | Bahia | Salvador | 1,500 (coast), 600 (interior) | Apr–Jun | | Ceará | Fortaleza | 800 | Feb–Apr | | Minas Gerais | Belo Horizonte | 1,500 | Dec–Feb | | São Paulo | São Paulo | 1,450 | Jan–Mar | | Rio Grande do Sul | Porto Alegre | 1,600 | Sep–Nov |
Brazil’s average rainfall is high globally, but the distribution is stark: the Amazon and parts of the Southeast receive tropical downpours year-round, while the semi-arid Northeast struggles with desert-like scarcity. Climate change is already shifting these patterns — intensifying extremes, lengthening dry seasons in the north, and increasing heavy rain days in the south. For agriculture, water management, and disaster preparedness, understanding where and when the rain falls is far more critical than the national average. average rainfall in brazil
Brazil’s rainfall patterns are governed by a handful of major atmospheric systems: | State | Capital | Annual Avg (mm)