* Emerging shares flat as Japan revives growth uncertainty
* Russian shares sag to near month-lows, rouble recovers
* South African rand gains but labour unrest eyed
By Sebastian Tong
LONDON, Aug 16 (Reuters) - Emerging markets were flat on Monday, dampened by renewed uncertainty over the global economy, but central European currencies firmed, still bolstered by the region's better-than-expected GDP readings late last week.
Russian stocks sagged to their lowest levels in nearly a month, while labour unrest checked gains in the South African rand against the dollar.
Despite the markets' Friday boost from Germany's surprisingly strong second-quarter economic growth, stubbornly high unemployment and a protracted housing slump continue to fuel fears of a double-dip U.S. recession.
The prognosis for the global economy once again tipped to the negative following overnight data showing Japanese output growth slowing to a crawl. [
]"We're pretty much left in the same place from last week with the same concerns about global growth. Until we get some clarity, the markets are going to remain rangebound," said Robert Beange, emerging markets currency strategist at RBC Capital Markets.
Amid thin trading volumes, the benchmark emerging stocks index <.MSCIEF> was mostly unchanged at 1025 GMT while emerging sovereign debt <11EMJ> widened 6 basis points to trade at 283 bps over U.S. Treasuries. The Thomson Reuters Emerging European stock index <.TRXFLDEEPU> firmed 0.3 percent, with gains seen across eastern European bourses.
Forecast-beating second-quarter GDP figures nudged Czech <
>, Hungarian < > and Romanian < > stocks higher, though concern remains over the impact of fiscal cuts on still fragile consumer demand.Eastern European currencies were also broadly firmer, though the Czech crown steadied near three-week lows to the euro <EURCZK=>.
ROUBLE RECOVERS
Russian shares <
> dipped 0.7 percent, languishing at their lowest levels in 3-1/2 weeks amid concerns over the impact of the severe drought that has laid waste to vast tracts of the country's grain crop.The rouble, which ended Friday with its largest weekly loss versus the dollar <RUBUTSTN=MCX> since mid-May, regained ground at the start of the monthly tax period that will see exporters convert foreign-currency revenues for payments. [
]Against its dollar-euro basket, the rouble advanced for the second day after a seven-day losing streak <RUS=MCX>.
The rand held its ground against the dollar but stayed near its weakest in two weeks <ZAR=D3> amid expectations of further labour unrest in the country.
Talks between South African autoworkers seeking wage increases and their employers broke down over the weekend, prolonging an ongoing strike. [
]"Strikes will remain on the radar screen in South Africa...So far the rand has remained super-strong in the vicinity of 7.30 regardless of the U.S. dollar strength and copper prices pull back," BNP Paribas said in a note.
South African June retail figures due this Wednesday are expected to show a boost from the World Cup. (Reporting by Sebastian Tong; Editing by Hugh Lawson)