Arabica Coffee Prices Erase an Early Rally on Rain Forecasts for Brazil

December arabica coffee futures declined from a 4-week high today, driven by liquidation following updated forecasts for rain in Brazil, despite persistent concerns over severe dry conditions, critically low ICE inventories, and a projected 2025/26 global arabica deficit. Conversely, November robusta coffee futures saw modest gains but remain pressured by robust production and increased exports from Vietnam, which anticipates a bumper crop and above-average rainfall. This divergence highlights contrasting supply outlooks, with arabica facing tightening fundamentals exacerbated by US tariffs on Brazilian imports and La Niña forecasts, while robusta benefits from ample supply.

Analysis

December arabica coffee (KCZ25) declined -1.23% today, retreating from a 4-week high, primarily due to updated forecasts for rain in Brazil's coffee-growing regions, which triggered liquidation despite earlier concerns over severe dry conditions. Conversely, November robusta coffee (RMX25) saw a modest gain of +0.45%, reflecting a mixed market sentiment.

Underlying bullish factors persist for arabica, including ICE-monitored inventories falling to a 1.5-year low of 496,808 bags, exacerbated by 50% US tariffs on Brazilian imports tightening US supplies. Furthermore, the National Oceanic and Atmospheric Administration (NOAA) increased the likelihood of a La Niña system to 71% for October-December, threatening Brazil's 2026/27 crop, while Volcafe projects a widening 2025/26 arabica deficit of -8.5 million bags.

In contrast, robusta prices face significant bearish pressure from robust supply forecasts. Vietnam, the world's largest robusta producer, expects above-average rainfall and a 6% year-over-year increase in 2025/26 production to a 4-year high of 29.4 million bags. Jan-Sep 2025 exports from Vietnam were already up +10.9% year-over-year, contributing to ample global supplies.

This creates a divergent outlook: arabica fundamentals suggest tightening supply and potential price support from weather risks and inventory drawdowns, while robusta is likely to remain pressured by strong production and export volumes, particularly from Vietnam.

Key Decisions for Investors

• Consider long positions in arabica futures or related instruments, given the widening projected deficit, low inventories, and potential La Niña impact on Brazil's 2026/27 crop.
• Monitor weather patterns in Brazil and Vietnam closely, as well as ICE inventory levels, for further directional cues in both arabica and robusta markets.
• Evaluate potential hedging strategies for robusta exposure, considering the strong production forecasts from Vietnam and increasing export volumes.
• Assess the impact of US tariffs on Brazilian coffee, as this policy continues to tighten US arabica supplies and could influence global trade flows.