
El Niño-related drought and heat have lowered water levels on Brazil’s Madeira and Tapajós rivers, forcing grain shippers to reduce barge loads and adjust convoy operations. Tapajós is operating at 60% of capacity, while reduced grain movements during the off-season have helped push truck freight from Sinop to Miritituba down from R$307.63 per tonne in June to R$255.87 in October.
Lower river capacity could constrain soybean and corn shipments through a corridor responsible for a large share of Brazil’s exports, potentially tightening export availability. At the same time, weaker seasonal demand for trucking has lowered freight rates on the route.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
After 1,079 past bullish weather events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.0%), and +0.9% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.