Climate

• Temperature 

Excluding parts of summer (July to August, also the official climbing season) , the monthly average temperature at Mount Fuji's peak is almost always below freezing temperature. Below is a table of the monthly average temperature of Mount Fuji.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average High Temperature (°C)	-15.4	-15	-11.2	-5.6	-1.1	3.4	7.3	9.1	5.5	-0.6	-6.4	-12.3
Average Low Temperature (°C)	-21.7	-21.8	-18	-12	-6.9	-1.8	2.2	3.4	-0.1	-6.2	-12.3	-18.4

The lowest recorded temperature is −38.0 °C, and the highest temperature was 17.8 °C recorded in June 2008.

• Wind 

Strong winds are characteristic at Mt. Fuji's peak. The west-northwest or west wind blows throughout the year and the annual average wind velocity is 12 meters per second. The maximum instantaneous wind speed at the peak was 91.0 meters (recorded on October 5, 1964) and 84.5 meters at ground level (recorded at Cape Muroto).

In addition, the average wind velocity in August, the most tranquil month, is 7.4 meters. Considering that you feel a temperature decline of 1^oC when the wind speed increases by 1 meter, the strong wind at the peak is extremely severe.

• Clouds 

"Kasagumo" just being generated at the peak

Clouds are formed when warm air and water vapor hit the mountain, making air drift up the incline and the vapor become concentrated. Clouds formed when crossing the mountain are called "kasagumo" while clouds generated after crossing are called "tsurushigumo." It is said that they are a sign the weather is about to change.