* August current-account surplus is $127 million
* Second month in a row Turkey posts a surplus
(Adds details, background)
ISTANBUL, Oct 12 (Reuters) - Turkey's current account posted a surprise surplus of $127 million in August, defying expectations in a Reuters poll of a $350 million deficit, Central Bank data showed on Monday.
August was the second month in a row the current account, the broadest measure of trade, produced a surplus.
The deficit in the first eight months of the year fell 81.2 percent to $6.574 billion, the bank said on its website.
The global financial crisis has slashed oil prices and consumer demand to reduce Turkey's trade deficit.
In the past, chronic current-account deficits have been Turkey's macroeconomic weak spot, as the country imported more than it produced for export.
In July, the current account stood at a surplus of $286 million.
However, in a sign of waning cash flows to Turkey, foreign direct investment fell 53.7 percent in the first eight months of the year to $5 billion, the central bank also said.
Turkey's trade deficit in the first eight months of the year fell 56.9 percent to $22.951 billion. (Editing by Toby Chopra)