July arabica coffee was little changed at $1.4590 per lb.
The Brazilian real hit a 2-1/2 month high versus the dollar on Wednesday, deterring farmers and exporters from selling by lowering returns in local currency terms.
The east African country's is Africa's largest coffee exporter and earnings from the crop constitute the second largest source foreign exchange after gold.
Shipments in March rose to 572,839 60-kg bags compared to exports in the same period 12 months earlier, state-run Uganda Coffee Development Authority (UCDA) said in a report.
"We forecast the global market in an 8.5 million tonne surplus in both 2020/21 and in 2021/22. In 2021/22, production will recover in the EU, Thailand and Russia among others," said Fitch Solutions.
