The lineup of ships waiting to load sugar in Brazil rose to 90 from 82 a week earlier as harvesting of the 2012/2013 crop accelerated amid clear weather, Williams shipping agents said.

Striking sanitary inspectors seeking pay raises are having "no visible affect" on shipments, the agency said.

Sugar output in the important center-south region picked up steam in early July and has continued strong as the harvest peaks in through September. Brazil is the largest producer of sugar and controls half the world's exports in the commodity.

The crop is expected to be larger this season than last year due to better yields and increased planting of the cane crop.

Wet weather in Santos and Paranagua ports in May and June had slowed loading of bulk raws into open holds, however.

At Santos, Brazil's main port for sugar exports, the lineup of vessels rose to 55 from 50 a week ago according to Williams' weekly report.

The line-up at Paranagua, the No. 2 sugar port, increased by two ships to 32 vessels to load both whites and raws. (Reuters)