China's retail sales growth surged in August to its quickest pace in more than three years, beating forecasts, but analysts said the jump largely reflected stronger inflation, not necessarily quicker underlying growth.

Retail sales, which are tracked in nominal terms, grew 17.1% from a year earlier, compared with 16.4% in July. The uptick roughly tracked a rise in annual consumer inflation in August to 6.5%, from 5.6% in July.