Temperatures in Karamatsu-komori-ana Cave were very stable throughout the year. The farther from the entrance, the less the influence of open air temperature. The distribution pattern of air temperature in the cave was different in summer and winter. This difference can be explained by the three-dimensional form of this cave. Water temperature seemed to be affected by the position in the stream and the size of the pool. But fluctuation of water temperature was smaller than that of air temperature.
