Abstract:The meteorological factors in two mangrove communities (Rhizophora stylosacommunity and Bruguiera gymnorrhiza community) and open area were compared in July of1997 in Yingluo bay of Guangxi Province. The results showed that the daily mean lightintensity of Rhizophora stylosa and Braruiera gymnorrhra communities were lower by 81.9%and 49.8% respectively as compared to that of the open area. The mean soil temperatureand mean wind speed were lower by 1.8℃ and 2.3℃, and by 64.7% and 67.7%,respectively. Daily change in air temperature and relative humidity in Rhizophora stylosa community were larger than those in Braruiera mnorrhiza community and open area．