World coffee prices have surged due to speculative buying and supply concerns in Brazil and Vietnam. The International Coffee Organization's Global Coffee Price Index averaged 270.7 US cents/lb in November, up 8% month-on-month and 67.6% year-on-year. The increase is due to worries about global supply after Tropical Storm Sara and a decrease in Brazil's coffee output forecast. The domestic coffee market in Vietnam has also seen a rebound. Despite a decrease in Vietnam's coffee exports in the first 11 months of 2024, the export turnover increased sharply due to high prices.