In the previous paper, we proposed a model for simulating the budgets of heat, water vapor, and carbon dioxide within three-dimensional vegetation. And we applied the model to a single tree and investigated the detail of heat balance within the foliage. Then we investigated the effect of the environmental factors on the heat budget within the foliage, by varying the environmental factors. In this paper, we examined the validity of our model. We compared the results from the model with the measured data. Our model accurately estimated the measured data.