Mount Fuji Weather in May

 Season: Spring
 In short: 
1. It’s very warm mostly in areas under the Mount Fuji, but the average temperature is still under freezing point on the mountain.
2. The visibility is not good in May in view of the frequent wet days.
3. Mount Fuji Summit is closed this month.

Temperature

The weather of Mount Fuji in May is very warm, with the monthly average temperature ranging 9-21 degrees Celsius (48.2-69.8 degrees Fahrenheit). Daily maximum temperatures occasionally fall below 15℃ (59℉) or exceed 24℃ (75.2℉); daily minimum temperatures mainly remain under 10℃ (50℉) in the first half of the month, with the lowest temperature possibly dropping to around 5℃ (41℉) in the early days, and above 10℃ in the second half.

The climate in Mount Fuji 5th Station is still cold overall, with the average temperature of -1 to 11℃ (30.2-51.8℉).

Precipitation & Humidity

The wet weather under the Mount Fuji in May is in form of rainfalls, with the average monthly precipitation of 187mm during 16 days of the month. In some years, the rainy days exceeded 20 days. Besides, although light rain is the main trend, there is a clear trend of increasing moderate or heavy rain, ranging from 3-10 days.

You may also be concerned about the precipitation on the top of Mount Fuji. The fact is this: in early May, there is still a lot of snow on the top of the mountain, but it will slowly melt over time; by the end of the month, the snow may melt completely, but there may also be a heavy snowfall at night, and the snow cover appears again the next day.

With rain and snowmelt, average humidity in the foothills rise to 73%.

Daylight Hours & Sunshine Hours

Sunrise time (1st – 31st): 04: 54 – 04: 32
Sunset time (1st – 31st): 18: 31 – 18: 55

As time goes by, the sunrise becomes earlier and the sunset becomes later, contributing to an increase of the daylength from 13.5 hours at the very beginning of the month to 14.4 hours at the end.

On days without rain, the average sunshine lasts up to 9 hours. However, there are only 11 sunny days over the month on average considering the rainy days and 40% of clouds daily. Therefore, the visibility is not good in general. If you are planning your 2026 Mount Fuji trip in May, you may have to rely on your luck to see Mount Fuji covered in snow!

The average UV index is 4, and it may be higher in the sunny noon, so you’d better apply sunscreen when hanging out.

Is There Still Cherry Blossoms in May?

The climate varies from year to year. If the cherry blossoms bloom late that year, you may still be able to see a few cherry trees in bloom in some places in the Lake Kawaguchi and Lake Yamanaka in early May, but they are about to wither.

How to Dress for Mount Fuji Trip in May?

 Clothing
In fine weather most time, you can wear a long-sleeved shirt plus a cardigan or just a light hoodie. If it’s overcast and windy, you may need to add a thin jacket outside. This is also applicable when you go sightseeing in the mountainous areas. As for the bottom, casual trousers or jeans will do. Short-sleeved shirts and shorts are OK in some sunny days, but you will feel chilly after sunset when the perceived temperature is lower.

 Shoes
Casual sneakers and walking shoes are comfortable for long walk.

 Others

It’s a must to prepare raincoats or umbrellas for your trip. Hat can be useful whether it’s windy or sunny. Sunglasses are an additional item, and you can bring them as you like. 

Travel Highlights & Tips in Mount Fuji in May

 Every May, the Fuji Shibazakura Festival is held at the Fuji Motosu Resort in the Lake Kawaguchi. With Mount Fuji as the backdrop, hundreds of thousands of colorful moss phlox are in full bloom, forming a flower carpet on the ground, creating a stunning visual effect. Besides, extra services like foot baths and local delicacies are provided to enhance your travel experience. 

 Early May coincides with Japan’s Golden Week, and many tourists come to Mount Fuji during this holiday to enjoy the moss phlox and other sightseeing activities. In addition, the Mount Fuji Cycling Race is usually held in the first few days of June, when tens of thousands of people may participate. Therefore, it is recommended that you mark the two time periods of early May and late May, as hotels around Mount Fuji may be difficult to book during these two periods and may be sold out.

 The routes to the Mount Fuji summit remain closed during May, and you can only reach as high as the 5th Station.

Mount Fuji Weather by Month