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This paper evaluates the relationships between weather variables like humidity, temperature, air pressure, wind speed and status (clear, cloud, rain, haze and snow) with stock returns and volatility in the Greater China region's stock market. The study focuses on four stock exchanges; Shanghai and Shenzhen stock exchanges from mainland China, Hong Kong stock exchange and Taiwan stock exchange from Hong Kong and Taiwan respectively. Using the robust approach the best peer econometric model for each market was chosen. The results of the study depict that weather variables have a significant effect on Greater China's capital markets. We are able to analyze that in some cases the variable affects returns as well as volatility • Prior studies have proved that weather has emotional effects. • Finance scholars have shown that emotions related to investor decisions. • I provide evidence that local weather affects stock returns. • I also explore which weather variable most liable for said effect. • I find that said effect is at least fall in every stock market of Greater China region. [ABSTRACT FROM AUTHOR]