Below is the weather forecast from 700m below the summit and for the summit of Mt. Fuji. The weather on Mt. Fuji is subject to alpine conditions. This means that, even under the best forecast conditions, rain, hail, strong winds and even lightning are not uncommon. This is why we recommend that all participants bring the necessary gear. We also provide equipment rentals to ensure that, even in the case of inclement weather, climbers will be protected and stay dry.
Is this forecast reliable based on our (extensive) experience on Mt. Fuji? Somewhat. We've found the wind speed to be very reliable but the precipitation (whether it's sunny, rainy, cloudy, stormy, etc) to be about a 50/50 guess. The temperature is also reliable about 70% of the time.
When should you think about cancelling your climb due to bad weather? There's a lot of factors that you should consider when facing a less than favorable forecast. Consider the quality of your hiking equipment, how much experience you have, and the chances of bad weather and make your best choice. Generally, wind is the biggest factor that'll warrant a trip cancellation--if any of the below wind markers are red, then you probably shouldn't be climbing. If any of the wind markers are above 80kph, then you definitely shouldn't be going.
Weather forecast used with permission of snow-forecast.com.
Mt Fuji 3,014m Weather Forecast
To the right is a forecast for Mt. Fuji at 3,014 meters. When judging whether it is safe to climb Mt. Fuji, pay close attention to the wind speed predictions.
Our most popular summer offering, the two day Mt. Fuji Tour will give ample time in the pursuit to reach the summit of Mt. Fuji. After a long hike the 1st day, participants enjoy a hot dinner and rest over night in a mountain hut at 3400 meters. Awaking before dawn, participants will continue the climb up Mt. Fuji in order to reach the summit in time for the sunrise.
Similar to the Two Day Mt. Fuji Tour, this trip follows much of the same itinerary, except that participants will summit Mt. Fuji during the day instead of just before dawn. Participants will enjoy a much more relaxed and peaceful climb up Fuji as the trails, as well as our mountain hut, will at times be completely deserted.