Two clones of rubber tree (Hevea brasiliensis Muell. Arg.) were cultivated at experimental site of Xinzhong Filiale of Hainan Natural Rubber Group Company, Wanning City, Hainan Province, South China. The influences of five meteorological factors on latex yield were evaluated in seven years (2006-2012) by grey incidence, correlation and path analysis. The five meteorological factors were average temperature, rainfall, sunshine duration, relative humidity and ground temperature. Correlation and path coefficients were analysed between each of five climate factors and latex yield. There were significant correspondences between direct effects with latex yield for average temperature and ground temperature at –0.01 and 0.91 respectively. Grey incidence indicated that the correlation coefficient of latex yield with each of five meteorological factors varied from 0.22 (ground temperature) to 0.41 (relative humidity).