China's exports suffered their third month of decline in October, and while the drop was less than expected there were warnings Friday of more pain to come as the US trade war rumbles on.

While tensions between the world's top two economies are beginning to ease, Beijing is struggling to get the engines of growth firing on all cylinders as demand for its goods around the world tails off.

In the latest sign of weakness, official data showed overseas shipments fell 0.9 percent on-year last month, though that is much slower than the 3.2 percent drop seen in September and much better than forecasts.

Economists surveyed by Bloomberg had tipped a 3.9 percent plunge.

Imports sank for the sixth straight month in October, dropping 6.4 percent, though that was also an improvement on the previous month and beat estimates.

China's trade surplus with the United States, a key point of anger in the White House, increased to $26.42 billion.

The economic powerhouses have been embroiled in a bruising trade war for more than a year, with punitive tariffs slapped on two-way trade worth hundreds of billions of dollars.

But markets have been buoyed in recent weeks by expectations the row, which has dragged on the global economy, could be easing as China and the US finalise a mini trade deal that is part of a wider agreement.

Ken Cheung Kin Tai, a senior strategist at Mizuho Bank said that the "less worrying trade figures should help suppress fears of weakening fourth-quarter China growth amid the trade war".

China's economic growth slowed to six percent in the third quarter, the weakest rate in 27 years.

However, analysts warned the subdued outlook worldwide will continue to weigh on trade.

"Slowing global growth and the uncertainty surrounding the US-China trade tensions will continue to dampen trade prospects in China and demand for imports," said Tommy Wu of Oxford Economics.

He added that further policy easing and support from the government could be expected to stabilise growth.

"The contraction in both exports and imports eased more than expected last month," said Martin Rasmussen, China economist at Capital Economics.

"But even if the 'phase one' US-China trade deal crosses the finish line, it is unlikely to alleviate the main headwinds facing exporters and outbound shipments look set to remain weak in the coming months."