Temperatures in Yakushima



The following table gives annual temperatures for Yakushima in degrees Celsius. It can however be quite deceptive as in the summer with high humidity it can get appallingly hot and in the winter, teeth-chatteringly cold.

Below the table are the temperatures at each of the mountain huts (very important information if you intend to stay the night) which vary from the chart considerably.

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Month Average Temperature Maximum Temperature Minimum Temperature
Jan 12.3 15.3 9
Feb 14.4 17.1 11.5
March 14.5 17.5 11.6
April 20.2 23.7 17.1
May 22.8 25.6 20.2
June 24.3 27.3 21.6
July 27 30.8 23.6
Aug 28 32.2 24.2
Sept 26.4 29.6 23.6
Oct 23.3 26 20.6
Nov 18.7 21.6 15.6
Dec 15 17.7 12.2


There are however variations on the above depending on how high you are on the mountains.

The general rule is that for every 100m you climb the temperature decreases by 0.6 degrees C. This means that you should allow for the following temperature changes in the mountains:

  • At Jomon Sugi (1300m) the temperature is 7.8 degrees below the temperatures in the above table.
  • At the summit of Mt.Miyanoura (1936m) it is 11.6 degrees below.
  • At Shiratani Unsuikyo (825m) it is 5 degrees below.
  • At Takatsu hut (1330m) it is 8 degrees below.
  • At Shintakatsu hut (1460m) it is 8.8 degrees below.
  • At Shikanosawa hut (1550m) it is 9.3 degrees below.
  • At Yodogawa hut (1380m) it is 8.3 degrees below.
  • At Ishizuka hut (1600m) it is 9.6 degrees below.
Click here for more details about the weather on Yakushima.

Click here for details about the levels of snow in winter.


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