Abstract: To explore the differences in the characteristics of typhoons and monsoons in coastal areas, this study analyzed the variations in near-surface average wind speed, in turbulence intensity, and in gust coefficient of typhoons and monsoons, based on long-term measurements of a fixed gradient wind observation tower in a mixed climate-neutral environment. The results show that the measured surface roughness height and the average wind speed profile index of typhoons and monsoons in island areas are similar but lower than the recommended values in GB 50009−2012, underestimating the basic design wind speed of structural design in island areas. The turbulence intensity of the typhoon climate sample is lower than that of the monsoon sample, but the turbulence intensity of along-wind direction of both samples is greater than the recommended values in GB 50009−2012. The gust coefficient in both climates decreased in the order of along-wind direction, of crosswind direction, and of vertical direction, and there is an obvious linear relationship with turbulence intensity. The peak factor of typhoon climates is higher than that of monsoon climates, but both are lower than the recommended values in GB 50009−2012. Climatic conditions have a limited influence on the parameters of the coherence function of the downwind vertical height of the island area. The conclusions supplement the wind parameter values in the specifications for typhoon-prone island areas and provide a reference for anti-typhoon design of engineering structures in island areas.