(Adds data on exports and imports, background)
BRASILIA, Sept 1 (Reuters) - Brazil recorded a trade surplus of $4.140 billion in August, government data showed on Thursday, the biggest for that month in 10 years.
The result was slightly below market expectations for a surplus of $4.2 billion, according to a Reuters poll.
Exports totaled $16.989 billion and imports $12.849 billion.
Economists in a weekly central bank poll expect a trade surplus of $50 billion in 2016, more than double last year's result after a severe recession curbed demand for imports.
A steady inflow of foreign capital has helped the Brazilian real strenghten more than 20 percent so far this year. (Reporting by Marcela Ayres Writing by Silvio Cascione; Editing by G Crosse and James Dalgleish)