Since July 12 the weather on Mt. Fuji has been extremely placid with light winds, minimal cloud cover and frequent blue skies.
Looking towards the next week however, the weather is forecasted to start getting more turbulent with moderate winds and light precipitation expected. While the weather on lower elevations isn't expected to exceed 30kph, the weather on the summit is expected to be around 45kph starting tomorrow, with winds coming out of the North.
Climbers on the Yoshida/Subashiri routes can expect moderate gusts and patches of rain throughout today and tomorrow.
While it may be hard to believe if you're starting from Tokyo, temperatures on the summit are forecasted to be between 5-7 degrees C, with winds increasing the chill factor to be about 0-4 degrees C before wind chill.
This is a regularly updated Mt. Fuji weather report provided for general informational purposes to the public. The report describes current weather conditions and issues and is not intended to be used as a forecast or an indication of whether or not one should climb Fuji.