The tender follows its purchase of 286,091 tonnes of food wheat from the United States, Canada and Australia in a regular tender that closed on Friday.
Japan, the world's sixth-biggest wheat importer, typically buys about 20,000-30,000 tonnes each of the five grades of food quality wheat from the three countries in tenders typically issued three times a month.
But the country has been ramping up its purchases of Canadian wheat used for making bread and noodles this year in a move to offset the possibility of extended shipping delays from Canada.
The tender for the additional Canadian wheat will close next Wednesday.