Coffee Prices Jump on Dry Conditions in Brazil

Coffee futures, particularly arabica, surged Tuesday on short covering spurred by forecasts for limited rainfall in Brazil's key Minas Gerais region, supporting prices after earlier declines. This rally occurs despite advancing Brazilian harvests and a 4.1% year-over-year increase in Vietnam's Jan-Jun exports. The broader outlook remains mixed, with USDA forecasting a record 2025/26 global coffee production of 178.68 million bags (+2.5% y/y) driven primarily by robusta. However, drought has impacted Vietnam's recent output, and Volcafe projects a fifth consecutive global arabica deficit of 8.5 million bags for 2025/26, suggesting ongoing supply tightness for arabica amidst broader robusta increases.

Analysis

Coffee futures are exhibiting significant volatility, driven by conflicting short-term weather catalysts and long-term supply forecasts. The recent +2.64% rally in September arabica was primarily a technical event, sparked by short covering after forecasts for limited rainfall in Brazil's Minas Gerais region. This weather-driven strength contrasts with the fundamental pressure from the ongoing Brazilian harvest, which recently pushed futures to a 7.5-month low. Harvest progress data is itself mixed, with the Cooxupe co-op reporting a slower pace (40% complete vs. 52% last year) while Safras & Mercado indicates it is in line with the 5-year average. The market is bifurcated by coffee type: robusta faces headwinds from Vietnam's rising Jan-Jun exports (+4.1% y/y) and a USDA forecast for a 6.9% y/y output increase in 2025/26. Conversely, the arabica market displays underlying tightness, evidenced by Brazil's 36% year-over-year decline in May green coffee exports. The most critical divergence for investors lies in forward-looking estimates. While the USDA's FAS projects a bearish scenario of record global 2025/26 production and a 4.9% rise in ending stocks, specialized commodity trader Volcafe forecasts a widening global arabica deficit of 8.5 million bags, marking the fifth consecutive year of deficits.

Key Decisions for Investors

• Monitor short-term Brazilian weather forecasts and harvest progress reports closely, as the market remains highly sensitive to supply-side news, which can trigger significant technical moves like the recent short covering rally.
• Consider relative value trades, such as long arabica versus short robusta, to capitalize on the diverging fundamental outlooks, with Volcafe projecting a significant arabica deficit while the USDA forecasts a substantial increase in robusta production.
• Acknowledge the significant forecast uncertainty by weighing the bearish USDA outlook for record global production against bullish private estimates of a persistent arabica deficit; a resolution of this divergence is a key catalyst for the medium-term price direction.