Coffee futures extended a rally on Wednesday, with September Arabica finishing higher and July Robusta surging after fresh weather signals raised concerns about timing and quality in Brazil’s harvest. The continued strength came alongside reports of declining inventories for Arabica, even as Robusta faced countervailing pressure from easing shipping disruptions.
Key takeaways
- Price move: September Arabica coffee rose by +1.24 (about +0.45%) and July Robusta gained +127 (about +3.55%).
- Catalyst: Renewed rainfall in Brazil, including support from a cold front in the south, is seen as delaying harvest activity and potentially affecting crop quality.
- Inventory support: ICE Arabica inventories fell to a 2.25-year low, underpinning prices even as some Robusta inventory dynamics remain volatile.
- Offsetting risk for Robusta: The reopening of the Strait of Hormuz is expected to ease shipping and related costs, which could weigh on Robusta’s outlook.
- Forward risk: El Niño probabilities remain elevated, raising the chance of weather disruptions that could affect coffee production later.
What drove the move
Arabica prices continued their two-week advance and reached six-week highs, supported by updated weather outlooks for Brazil. According to meteorologist Climatempo, a new cold front is helping sustain rainfall across southern Brazil, with more than 50 millimeters expected through the week. Traders said the timing matters: additional rain during the harvest window can delay field work and raise the risk of lower-quality coffee.
Inventory trends also provided support. ICE data showed Arabica inventories declined to 388,956 bags—a 2.25-year low—strengthening the near-term supply backdrop for the benchmark contract mentioned in the session report. For Robusta, ICE inventories hit a 2-year low of 3,631 lots on May 15 but then moved higher to a 2.25-month high of 4,032 lots last Thursday, highlighting less consistent tightness in the robusta complex.
Robusta’s stronger finish appeared tied to a combination of factors, including the market digesting prior downside. The report noted Robusta had fallen to a one-week low on Tuesday after the reopening of the Strait of Hormuz, which traders typically associate with reduced supply disruption risk and lower costs. However, Wednesday’s rebound suggested that the market continued balancing logistical relief against weather and inventory considerations.
Why weather risk remains central
Beyond near-term rainfall, traders are also focused on longer-range El Niño signals that could influence coffee development in coming months. According to the US National Oceanic and Atmospheric Administration (NOAA), there is a 67% probability of a “Super El Niño” this year, which NOAA characterized as potentially among the strongest on record. The Japan Meteorological Agency confirmed an El Niño pattern formed over the equatorial Pacific on June 10, setting up expectations for later in the year—when impacts such as floods, droughts, and temperature shifts can affect agricultural output across Asia and South America.
Industry commentary pointed to specific crop timing concerns for Brazil. A coffee trader cited expectations that El Niño could delay rains in Brazil during September and October, when tree flowering normally occurs. Delays during flowering can translate into reduced or uneven yields later, particularly for the 2026/27 crop cycle.
That said, markets also weigh against recent data suggesting improved production prospects in Brazil. On June 3, the USDA’s Foreign Agricultural Service (FAS) forecast a record 2026/27 Brazil coffee crop of 71.9 million bags, up 14% year over year. Rabobank raised its estimate for the global arabica surplus for 2026/27 to 9.5 million bags from 7.0 million bags previously. These forecasts can cap upside if investors believe supply will be ample later, even when near-term weather disrupts harvest timing.
Supply signals: mixed for arabica and robusta
Export and production reports were mixed across origins. The report cited Brazil’s green coffee exports in May rising 4.2% year over year to 2.73 million bags, which can affect near-term price expectations depending on how much of that flow is expected to continue.
For robusta, Vietnam remains a focal point. Data referenced from Vietnam’s National Statistics Office showed Vietnam coffee exports for January through May 2026 increased 7.9% year over year to 922,000 metric tons. Vietnam’s 2025 exports also rose 17.5% year over year to 1.58 million metric tons. In addition, Vietnam’s 2025/26 coffee production is projected to climb 6% year over year to a four-year high of 1.76 million metric tons (29.4 million bags). Traders typically treat stronger output and exports from the world’s largest robusta producer as a bearish factor for robusta prices.
Other global supply signals further complicated the picture. The report noted that the International Coffee Organization (ICO) said global coffee exports for the current marketing year (Oct–Sep) fell 0.3% year over year to 138.658 million bags, a mild contraction that can support prices depending on whether the decline is broad-based or concentrated.
For the broader market, the USDA’s Foreign Agricultural Service bi-annual report projected world coffee production in 2025/26 would rise 2.0% year over year to a record 178.848 million bags. It forecast arabica production would fall 4.7% year over year to 95.515 million bags, while robusta production would increase 10.9% to 83.333 million bags. Ending stocks were forecast to decline 5.4% to 20.148 million bags from 21.307 million in 2024/25, which is supportive if the drawdown reflects tighter balances later in the cycle.
What investors will watch next
With prices reacting to Brazil’s weather updates and inventory levels, the next key catalysts are further meteorological guidance for harvest timing and any new changes in ICE stock movements. Traders will also be watching upcoming crop-cycle headlines around El Niño development, alongside follow-up USDA and industry updates that could revise 2026/27 supply expectations and export pace.
