The degree of spatial organization of soil moisture, and the ability of terrain attributes to predict that organization was analyzed. The measured soil moisture patterns exhibited a high degree of organization during wet periods due to surface and subsurface lateral redistribution of water. The shape of the distribution function of soil moisture changed seasonally and was influenced by the presence of spatial organization. A correlation analysis found that ln(a), where a is the specific unslope area, was the best univariate spatial predictor of soil moisture during wet periods and up to 22% during dry periods.