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Mount Fuji in January: weather, what to wear and what's on

Kawaguchiko is the lake town at the northern foot of Mount Fuji, and the JMA's station there stands 860 m above sea level. In January, Kawaguchiko averages a high of 5.5°C (42°F) and a low of −5.7°C (22°F), with 60.9 mm of rain or snow on about 4.9 days (JMA, 1991–2020). It is Kawaguchiko's coldest month. Snow lies on the ground on 13.0 days, and the deepest snow averages 25 cm.

Updated

5.5°Caverage high
−5.7°Caverage low
4.9 dayswet days

Cold

Mount Fuji weather in January

Averages for 1991–2020 at the JMA's Kawaguchiko station (860 m above sea level).

High
5.5°C (42°F)
Low
−5.7°C (22°F)
Precipitation
60.9 mm
Wet days
4.9 days
Sunshine
212 hours
Snow on ground
13.0 days

Highs are 3.0°C below December and 1.1°C below February.

That is 11.3°C below Kawaguchiko's yearly average high of 16.8°C.

Of our 14 places with temperature records, Kawaguchiko is the 4th coldest in January: 0.4°C cooler than Nikko and 2.3°C warmer than Takayama.

January is Kawaguchiko's 3rd driest month (60.9 mm).

Of our 15 places, Kawaguchiko has the 8th highest precipitation in January: 13.5 mm less than Fukuoka and 1.2 mm more than Tokyo.

Rain or snow of 1 mm or more falls on 4.9 days, and 10 mm or more on 1.8 days.

Rain or snow of 30 mm or more in one day falls on 0.5 days.

The temperature drops below 0°C on 29.9 nights.

On 1.0 days it stays below 0°C all day.

37 cm of snow falls in an average January; snow lies on the ground on 13.0 days.

The sun is out for 40% or more of the possible hours on 24.9 days, and 2.4 days have under 0.1 hours of sunshine.

On the summit of Mt Fuji (3,775 m), the average high is −15.3°C (4°F) and the low −21.4°C (−7°F).

Average temperature
−0.4°C (31°F)
Humidity
62%
Deepest snow (average of each year's deepest)
25 cm

Early, mid and late January

Kawaguchiko in January by ten-day period: averages for 1991–2020 (JMA)
DaysHighLowPrecipitation
1–10 January6.4°C−5.1°C13.9 mm
11–20 January5.3°C−5.6°C20.0 mm
21–31 January4.9°C−6.2°C27.0 mm

By the last ten days of January the average high in Kawaguchiko is 1.5°C lower than in the first ten.

By ten-day totals, 21–31 January is the wettest (27.0 mm) and 1–10 January the driest (13.9 mm).

Snow-covered Mount Fuji above a forest, with a ski slope, a lift station and people on the snow in the foreground
Photo: Mt. Fuji from Fujiten Snow Resort (1) Dec 27, 2006.jpg by Derek Springer (CC BY-SA 2.0, cropped), via Wikimedia Commons.

What to wear at Mount Fuji in January

Cold: highs around 5.5°C

This is for Kawaguchiko (860 m above sea level).

  • A winter coat over layers, and a scarf.
  • Gloves and a hat for mornings and nights: the temperature drops below 0°C on 29.9 nights.
  • A waterproof jacket with a hood: rain or snow falls on 4.9 days.

Shoes

  • Waterproof boots with good grip: snow lies on the ground on 13.0 days (deepest 25 cm on average).

Pack

  • Waterproof jacket with a hood
  • Gloves and a warm hat
  • Scarf
  • Waterproof boots with grip

January records at Mount Fuji

The extremes the JMA has measured in January at its Kawaguchiko station.

Hottest January day
19.5°C (67°F) on 27 January 1969 (records since 1933)
Coldest January night
−22.1°C (−8°F) on 31 January 1936 (records since 1933)
Wettest January day
90.0 mm on 15 January 1998 (records since 1933)
Deepest January snow
89 cm on 15 January 1998 (records since 1933)
Most snow in one January day
66 cm on 27 January 2001 (records since 1953)

Holidays and crowds in January

National holidays in January 2027:

  • Fri 1 January — New Year's Day
  • Mon 11 January — Coming of Age Day
  • Fri 1 January to Sun 3 January: 3 days off in a row
  • Sat 9 January to Mon 11 January: 3 days off in a row

In January 2025, hotels and inns across Yamanashi Prefecture were 33.0% full on average (the quietest month of the year). Foreign guests spent 223,060 nights there that month (Japan Tourism Agency). That compares with 37.7% in December and 37.5% in February.

What's on at Mount Fuji in January

Events at Mount Fuji in January: dates from each organizer's official page
EventWhenWhere and what
Kawaguchiko Winter Fireworks河口湖・冬花火Weekend evenings from late January to late February (24 January to 23 February in 2026, 11 launches), 20:00 to 20:20Oike Park (main venue), Tatami-iwa and Yagizaki Park, Lake Kawaguchi. Fireworks are launched from three spots on Lake Kawaguchi with winter Mt Fuji in the background, on Saturdays and Sundays plus 23 February (11 launches in 2026). Food trucks are present at the main venue at Oike Park each time. Free to watch, with free parking. May be cancelled if a forest fire warning is issued. Official page

Mount Fuji before and after January

Kawaguchiko: December, January and February (JMA, 1991–2020)
MonthHighLowPrecipitationWet days
December8.5°C (+3.0°C)−2.9°C (+2.8°C)49.8 mm (−11.1 mm)4.6 days (−0.3 days)
January5.5°C−5.7°C60.9 mm4.9 days
February6.6°C (+1.1°C)−4.8°C (+0.9°C)55.4 mm (−5.5 mm)5.1 days (+0.2 days)

Other places in January

January: Kawaguchiko against five other places (JMA, 1991–2020)
PlaceHighAgainst KawaguchikoWet daysAgainst Kawaguchiko
Tokyo9.8°C+4.3°C4.5 days−0.4 days
Kyoto9.1°C+3.6°C6.4 days+1.5 days
Osaka9.7°C+4.2°C5.6 days+0.7 days
Sapporo−0.4°C−5.9°C18.3 days+13.4 days
OkinawaNaha19.8°C+14.3°C10.2 days+5.3 days

Frequently asked questions

What is the weather like at Mount Fuji in January?

The average high is 5.5°C (42°F) and the average low −5.7°C (22°F). 60.9 mm of rain or snow falls on about 4.9 days (JMA, 1991–2020).

What should I wear at Mount Fuji in January?

A winter coat over layers, and a scarf. Gloves and a hat for mornings and nights: the temperature drops below 0°C on 29.9 nights. A waterproof jacket with a hood: rain or snow falls on 4.9 days.

Does it snow at Mount Fuji in January?

Yes. 37 cm of snow falls in an average January, and snow lies on the ground on 13.0 days (JMA, 1991–2020).

Is Mount Fuji busy in January?

In January 2025, hotels and inns across Yamanashi Prefecture were 33.0% full on average (the quietest month of the year). Foreign guests spent 223,060 nights there that month (Japan Tourism Agency).

What are the record temperatures for January at Mount Fuji?

The highest temperature the JMA has recorded in Kawaguchiko in January is 19.5°C (67°F), on 27 January 1969. The lowest is −22.1°C (−8°F), on 31 January 1936.

What events are on at Mount Fuji in January?

Kawaguchiko Winter Fireworks: Weekend evenings from late January to late February (24 January to 23 February in 2026, 11 launches), 20:00 to 20:20.

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Compiled by Japan Japan !! · Updated October 2, 2026