Latics boss Steve Bruce told the club website: "He's a really decent keeper.
"You don't play nearly 60 times for one of the top 20 nations in the world without having something about you.
"I think he'll add to the competition here."
Kingson will compete with Chris Kirkland and Mike Pollitt for a place in the Wigan starting line-up, and will hope to be in contention for Sunday's Premier League match at Tottenham.
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