Coffee futures traded mixed on Monday, with September arabica coffee rising while September ICE robusta fell sharply. Arabica climbed as heavy rains in Brazil delayed parts of the harvest in key growing areas, while robusta came under pressure as ICE inventory levels increased and investors looked to a broader supply outlook.
September arabica coffee for delivery in 2026 rose by 3.75 cents (up 1.37%), while September ICE robusta for 2026 dropped 74 cents (down 2.04%). The divergence underscored a market balancing near-term weather disruptions for arabica against improving availability signals for robusta.
Key takeaways
- Price move: September arabica futures rose, while September ICE robusta futures fell.
- Catalyst: Arabica gained on reports of heavy rainfall disrupting Brazil’s harvest timeline; robusta weakened as ICE robusta inventories rose.
- Implication: Investors are treating arabica and robusta as reacting to different supply drivers—weather-led tightness versus inventory-and-supply expectations.
- Watch next: Further weather developments in Brazil and confirmation of the strength of export flows, particularly from Vietnam, could keep price swings elevated.
What drove arabica higher
Arabica strength was linked to delays in Brazil’s coffee harvest caused by heavy rainfall. According to Somar Meteorologia, rainfall in Minas Gerais—Brazil’s largest coffee-growing state—totaled 31.3 mm in the week through June 28, equal to 1,956% of the historical average.
Traders also pointed to how these conditions can affect both field operations and potential crop quality. Recent heavy rains have already forced field activity disruptions, and market participants have raised concerns that persistent wet weather could reduce the quality of the coming coffee output.
Why robusta slipped
Robusta futures fell on a combination of inventory signals and supply expectations. The article cited that ICE robusta coffee inventories climbed to a 2.75-month high, which typically weighs on prices by implying more readily available beans in the near term.
Beyond inventories, investors have also focused on export momentum from Vietnam, the world’s largest robusta producer. Data cited from Vietnam’s National Statistics Office showed Vietnam’s 2026 coffee exports for January through May rose 7.9% year over year to 922,000 metric tons. It also noted that Vietnam’s 2025 coffee exports increased 17.5% year over year to 1.58 million metric tons, supporting the case for resilient supply for robusta.
Inventory trends and longer-term weather risk
While robusta inventory levels rose today, the broader inventory picture remains mixed across the two coffee types. The coverage noted that ICE coffee inventories have trended lower over the past three months, supporting prices overall at certain points.
For arabica specifically, ICE arabica inventories were described as falling to a 2.25-year low of 382,084 bags on Friday—an additional factor underpinning demand for tighter supplies. By contrast, the article pointed out that robusta inventories fell earlier to a 2-year low before turning higher recently.
Looking ahead, both markets remain sensitive to weather risk tied to El Niño. The article referenced Commercial Coffee trader commentary suggesting that El Niño could delay Brazil rains in September and October, which normally coincide with tree flowering. That timing risk is viewed as a potential threat to Brazil’s 2026/27 crop.
For broader context, the report also cited NOAA’s estimate that there is a 67% probability of a “Super El Niño” this year. It further referenced confirmation by the Japan Meteorological Agency that an El Niño pattern has formed across the equatorial Pacific, which could increase the likelihood of disruptions from floods, droughts, and temperature fluctuations across coffee-producing regions in Asia and South America later in the year.
The supply outlook remains the counterweight
Despite near-term weather concerns, recent forecasting has continued to reflect an environment that could supply the market enough to limit upside. The article cited the USDA Foreign Agricultural Service’s Foreign Agricultural Service outlook that forecast a record Brazil coffee crop of 71.9 million bags for 2026/27, up 14% year over year. It also noted Rabobank raised its estimate for the 2026/27 global arabica surplus to 9.5 million bags from 7.0 million previously.
On the export side, the report referenced Cecafe data showing Brazil’s green coffee exports rose 4.2% year over year in May to 2.73 million bags, another factor that can cap rallies by confirming that physical coffee flows remain active.
The coverage also referenced the International Coffee Organization’s report that global coffee exports for the current marketing year (Oct–Sep) fell 0.3% year over year to 138.658 million bags. Separately, it cited the USDA’s Foreign Agriculture Service bi-annual report that projected world coffee production in 2025/26 would rise 2.0% year over year to a record 178.848 million bags, with arabica production down 4.7% and robusta up 10.9%. The report also stated that ending stocks for 2025/26 were forecast to fall 5.4% to 20.148 million bags.
What to watch next
Investors will likely focus on follow-through in Brazil rainfall and harvest conditions, given its impact on arabica quality and timeline. At the same time, inventory levels at ICE and continued export momentum—especially from Vietnam for robusta—may determine whether robusta’s weakness persists or stabilizes. Near-term price direction could also hinge on further El Niño-related updates and upcoming agricultural forecasts for the next production cycle.
