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Mount Fuji weather by month: temperature, rain and what to wear

Kawaguchiko's average high runs from 5.5°C (42°F) in January to 28.1°C (83°F) in August (JMA, 1991–2020). The wettest month is September (264.7 mm) and the driest is December (49.8 mm).

Updated

28.1°CAugust
5.5°CJanuary
1,586 mmprecipitation

Mount Fuji weather month by month

Averages for 1991–2020 at the JMA's Kawaguchiko station (860 m above sea level). Each month links to its own page.

Kawaguchiko by month: averages for 1991–2020 (JMA)
MonthHighLowPrecipitationWet daysSunshine
January5.5°C−5.7°C60.9 mm4.9 days212 hours
February6.6°C−4.8°C55.4 mm5.1 days191 hours
March10.5°C−1.3°C107.6 mm9.1 days186 hours
April16.1°C3.7°C106.1 mm8.5 days186 hours
May20.6°C8.9°C123.2 mm9.4 days181 hours
June23.0°C13.7°C157.1 mm11.5 days123 hours
July27.2°C18.0°C178.4 mm11.7 days148 hours
August28.1°C18.5°C176.8 mm10.1 days165 hours
September23.8°C14.8°C264.7 mm11.1 days122 hours
October18.3°C8.7°C230.0 mm10.1 days134 hours
November13.8°C2.2°C76.0 mm6.7 days166 hours
December8.5°C−2.9°C49.8 mm4.6 days200 hours

Average high at Mount Fuji, month by month (°C)

Jan5.5°C
Feb6.6°C
Mar10.5°C
Apr16.1°C
May20.6°C
Jun23.0°C
Jul27.2°C
Aug28.1°C
Sep23.8°C
Oct18.3°C
Nov13.8°C
Dec8.5°C
Mount Fuji with a snow-capped peak beyond Lake Kawaguchiko, framed by cherry blossoms in bloom
Photo: Lake Kawaguchiko Sakura Mount Fuji 4.JPG by Midori (CC BY 3.0, cropped), via Wikimedia Commons.

When to go to Mount Fuji, by the numbers

  • Months with average highs between 15°C and 25°C and fewer than 10 wet days: April and May.
  • Fewest wet days: December (4.6 days).
  • Quietest hotels in 2025 (Yamanashi Prefecture): January (33.0%), February (37.5%) and December (37.7%).
  • Busiest hotels in 2025 (Yamanashi Prefecture): August (60.5%), July (48.8%) and October (46.7%).

What to wear at Mount Fuji, month by month

Kawaguchiko: our clothing level for each month (from the JMA's averages)
MonthLevelAverage highWet days
JanuaryCold5.5°C4.9 days
FebruaryCold6.6°C5.1 days
MarchChilly10.5°C9.1 days
AprilCool16.1°C8.5 days
MayMild20.6°C9.4 days
JuneMild23.0°C11.5 days
JulyWarm27.2°C11.7 days
AugustWarm28.1°C10.1 days
SeptemberMild23.8°C11.1 days
OctoberCool18.3°C10.1 days
NovemberChilly13.8°C6.7 days
DecemberCold8.5°C4.6 days

How busy Mount Fuji is, month by month

How full hotels across Yamanashi Prefecture were, month by month in 2025 (%)

Average room occupancy for all hotels and inns (Japan Tourism Agency).

Jan33.0%
Feb37.5%
Mar41.2%
Apr45.2%
May43.8%
Jun38.4%
Jul48.8%
Aug60.5%
Sep46.5%
Oct46.7%
Nov45.6%
Dec37.7%

Events at Mount Fuji through the year

Events at Mount Fuji: dates from each organizer's official page
EventMonthWhen
Kawaguchiko Winter Fireworks河口湖・冬花火Jan and FebWeekend evenings from late January to late February (24 January to 23 February in 2026, 11 launches), 20:00 to 20:20 Official page
Fuji-Kawaguchiko Sakura Festival富士・河口湖さくら祭りMar and AprFrom late March to mid-April (28 March to 15 April in 2026) Official page
Fuji Shibazakura Festival富士芝桜まつりApr and MayMid-April to late May, depending on the bloom (11 April to 24 May in 2026) Official page
Mt. Fuji Hill Climb (cycling race on the Fuji Subaru Line)Mt.富士ヒルクライムJunEarly June (7 June in 2026) Official page
Mt Fuji Opening Eve Festival (Kaizan Zen-ya-sai)富士山開山前夜祭JunEvery year on 30 June Official page
Mt Fuji climbing season, Yoshida Trail (Yamanashi side)富士山 吉田ルート 登山シーズンJul, Aug and Sep1 July to 10 September; the start may be delayed by weather or remaining snow Official page
Mt Fuji Opening Ceremony (Kaizan-sai)富士山開山祭JulEvery year on 1 July Official page
Fuji Mountain Race (Fuji Tozan Kyoso)富士登山競走JulLate July (24 July in 2026) Official page
Kawaguchiko Lake Festival (Kojosai) fireworks河口湖湖上祭Aug5 August every year Official page
Yoshida Fire Festival (Yoshida no Himatsuri) and Susuki Festival吉田の火祭り・すすき祭りAug26 and 27 August every year Official page
Rainbow Flower Festival (Niji no Hana Matsuri)虹の花まつりAug, Sep and OctLate August to mid-October (29 August to 12 October in 2026, listed as planned) Official page
Yabusame Festival (Komuro Sengen Shrine annual festival)流鏑馬祭り例祭（小室浅間神社）SepEvery year on 18 and 19 September Official page
Yamanakako Myojin Anzan Matsuri (safe childbirth festival)山中湖明神安産祭りSepEvery year from 4 to 6 September Official page
Hataori Machi Festival (textile town festival)ハタオリマチフェスティバルOctMid-October, for two days (17 and 18 October in 2026) Official page
Fujikawaguchiko Autumn Leaves Festival富士河口湖紅葉まつりNovNovember (7 to 29 November in 2026), with a light-up from sunset to 21:00 Official page
Mt. Fuji International Marathon富士山マラソンDecTwo days in mid-December (12 and 13 December in 2026) Official page

Not held, or changed

Arakurayama Sengen Park Cherry Blossom Festival. Not held as an event in 2026, because of the effects of overtourism on local residents. Security guards, traffic control, temporary parking and temporary toilets continued during the bloom: the reinforced period was 1 to 17 April 2026, with traffic restrictions until 19 April. The first car park next to the park was closed and visitors were asked to come by public transport (Shimo-Yoshida Station is about 10 minutes on foot). The observation deck used timed entry, with waits of 1 to 3 hours expected.

Official page

Kawaguchiko Herb Festival. Ended as an event after fiscal year 2025. Lavender and other plants can still be seen at Oishi Park and Yagizaki Park, with no set event period. Large buses are asked to drop off and pick up at the Oishi Park temporary car park. The festival used to run in June and July (24 June to 17 July in 2023).

Official page

Frequently asked questions

When is the best time to visit Mount Fuji?

Months with average highs between 15°C and 25°C and fewer than 10 wet days: April and May. Fewest wet days: December (4.6 days).

What is the hottest month at Mount Fuji?

August has the highest average high, 28.1°C (83°F). January has the lowest, 5.5°C (42°F) (JMA, 1991–2020).

What is the rainiest month at Mount Fuji?

September has the most precipitation (264.7 mm), and July has the most wet days (11.7 days) (JMA, 1991–2020).

Related items

Sources for this page

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Back to Japan by month

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