富士河口湖町の月別の天気

富士河口湖町を訪れるベストシーズンは4月、5月、11月です — 5月は84/100、最高21°C、雨の日14日。 ベストな季節は春(3月〜5月)で、平均80/100です。

最も不向きな月は7月で、63/100です — 暑い、大雨続き、空気がきれい。 7月を見る →

2026年9月更新 · ERA5再解析による気候平年値

周辺も含めて旅を計画するなら 日本旅行のベストシーズン →

富士河口湖町Fujikawaguchiko, Japan🇯🇵 日本 · 日本本土 · トレッキング84
  1. 731月
  2. 742月
  3. 733月
  4. 824月
  5. 845月
  6. 746月
  7. 637月
  8. 688月
  9. 719月
  10. 7710月
  11. 8111月
  12. 7612月

ベストな季節:3月〜5月(平均80/100) · 最も不向きなのは7月(63/100)

日中
21°C
9°C
雨の日
14
日照
9 h
湿度
79%
日の長さ
14 h
富士河口湖町(日本)
写真: Nizar F · Pexels

富士河口湖町の月ごとのようす

富士河口湖町に最も合う旅のタイプでの100点満点の快適スコア、気候平年値による平均最高気温・雨の日数・1日の日照時間、そして混雑具合の目安です。

スコアランク最高日照混雑イベント
1月73B6°C8日8時間ピーク2
2月74B7°C10日9時間混雑2
3月73B12°C14日8時間混雑
4月82A17°C15日9時間ピーク2
5月84A21°C14日9時間ピーク2
6月74B24°C18日9時間ショルダー
7月63C28°C21日9時間混雑3
8月68C29°C20日10時間ピーク5
9月71B24°C18日8時間閑散3
10月77B18°C16日7時間ショルダー1
11月81A14°C11日8時間混雑1
12月76B9°C7日8時間混雑1

富士河口湖町の年間イベント

祭り、自然の見どころ、祝日、そして注意したい季節 — 厳選し出典を明記しています。詳しくは各月のページで。

1月
  • Kawaguchiko Winter Fireworks1月24日〜2月23日(例年)祭り
4月
  • Fuji Shibazakura Festival4月11日〜5月25日(例年)祭り
  • Golden Week4月29日〜5月5日祝日
7月
  • Fuji Kawaguchiko Music Festival7月15日〜8月24日(例年)祭り
  • Mount Fuji climbing season7月1日〜9月10日オープン
  • Mount Fuji climbing fee7月1日〜9月10日ルール
8月
  • Kawaguchiko Lake Festival Fireworks8月5日祭り
  • Typhoon season8月1日〜10月15日(例年)要注意
11月
  • Kawaguchiko Autumn Leaves Festival11月1日〜29日(例年)祭り
12月
  • The clearest views of Fuji12月1日〜2月28日季節

富士河口湖町の年間イベントをすべて見る →

5月の富士河口湖町の混雑

その場所自体の混み具合 — 学校休暇や大型連休、編集部がタグ付けした月、そして天気の良さによる人気の高さ。快適スコアには含まれません。

ピークの混雑Fuji Shibazakura Festival、Golden Week、日本のGolden Week(推定)

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ピークの混雑混雑ショルダーシーズン閑散

富士河口湖町の旅行者の声

実際に訪れた人たちの声です — 通年のメモを先に、そのあと月ごとに並べています。

Fujikawaguchiko-forum threads on a January visit are consistently positive, posters calling this genuinely one of the best windows for clear Mount Fuji views given how crisp the winter air runs. Regulars describe other seasons as more of a gamble, cloud and haze frequently obscuring the mountain, while winter's clearer air makes a good sighting considerably more likely. Posters call real cold-weather layers essential regardless of how clear the sky looks, January readings running genuinely cold once the sun drops. Regulars describe light accumulation as more common at lower elevations by January and February, worth checking current road conditions before a day trip by car. Posters recommend the train or bus from Tokyo for anyone not wanting to navigate winter roads. Regulars call a clear January morning the best bet for the classic photograph. The record: 6.3C days feeling like 2C, -5.9C nights, a notably high 19cm of fresh accumulation and 67 percent humidity.
FujikawaguchikoJanuaryRegular · 1月 · 4日前 · Tripadvisorで続きを読む ↗
Fujikawaguchiko-forum threads on a February visit describe winter as genuinely the best season for clear Mount Fuji visibility, posters naming February specifically as when the mountain is almost certainly snow-capped. Regulars call Lake Kawaguchiko genuinely the top viewing spot, several posters naming sunrise and sunset as the real prime times for photos there. Posters call conditions genuinely capable of flipping fast, several regulars recommending a live weather cam check before heading out to avoid disappointment. Regulars call clear February days genuinely reliable more often than other seasons, several threads naming this the reason winter draws so many photographers specifically for Fuji views. Posters recommend flexible timing around a February visit to catch a clear window, several regulars calling this standard given how quickly weather can obscure the mountain. The record: 7.4C days, -5C nights, 81.1mm across 10 days and 67 percent humidity.
FujikawaguchikoFebruaryRegular · 2月 · 3日前 · Tripadvisorで続きを読む ↗
The Fuji five lakes bloom about two weeks after Tokyo, so mid-April is the window here rather than late March - reports put full bloom somewhere around the 13th to the 18th. What is not guaranteed is the mountain itself: regulars tell people to check the forecast and the live webcam that morning rather than commit a day in advance. The two spots they name for blossom and Fuji in one frame are the Chureito Pagoda, reached via Shimo-Yoshida on the Fujikyu line and then a walk, and the north shore of the lake on the red sightseeing bus. Our row explains the lateness: 16.6C days but 4.2C nights, with 5.6cm of April snow. The record: 14.5 precipitation days carrying 156mm and 8.9 hours of sun.
CheckTheWebcamThatMorning · 4月 · 5日前 · Tripadvisorで続きを読む ↗
Fujikawaguchiko's forum is honest that May is a genuine gamble for a clear Mt. Fuji view — cloud tends to hang around the mountain from March through May, and even partial cloud can hide it given its height. Regulars recommend staying flexible and only heading to the lakeside when a forecast looks genuinely clear, since mornings offer better odds than afternoons, when mist tends to build on the upper slopes.
Tripadvisor community · 5月 · 8日前 · Tripadvisorで続きを読む ↗
Fujikawaguchiko-forum threads on a late June visit call this genuinely the middle of the season locally, posters describing conditions as capable of turning showery on short notice though not necessarily every single day. Regulars call the odds of a clear Mount Fuji view noticeably lower in June than other months, a real tradeoff for anyone timing a trip around the mountain specifically. Posters recommend a day trip from Tokyo as a genuinely practical approach, allowing a traveler to pick a clearer-looking day rather than committing to an overnight stay. Regulars call the lake itself still worth visiting regardless of visibility, real scenery and museums on offer even on a cloudy day. Posters recommend real waterproof layers and flexible plans, June here capable of shifting fast between sun and a real downpour. The record: 23.9C days feeling like 25C, 13.6C nights, an extraordinarily high 223.8mm across over 17 days and 82 percent humidity.
FujikawaguchikoJuneRegular · 6月 · 4日前 · Tripadvisorで続きを読む ↗
Fujikawaguchiko-forum threads on September conditions are direct visibility of Mt Fuji itself is a real gamble this time of year, cloud cover and haze frequently blocking the view even on an otherwise clear-feeling day. Posters describe the lake town's own weather as comfortable, warm afternoons giving way to a noticeably cooler evening, ideal timing for an onsen soak after a day of sightseeing. Regulars are consistent conditions can shift meaningfully after mid-month, mountain huts higher up beginning to close and bus schedules thinning as the season turns. A real chance of a passing shower exists on any given day, posters recommending a flexible itinerary rather than a single planned viewpoint. Regulars call checking a Japanese forecast source like the JMA site far more reliable than general weather apps for this specific microclimate. The record: 24.4C days feeling like 25C, 15.4C nights, an extraordinarily high 210mm across nearly 18 days and 87 percent humidity.
FujikawaguchikoSeptemberRegular · 9月 · 4日前 · Tripadvisorで続きを読む ↗
Forum posters describe November as not particularly humid, with a real chance of morning frost and skies that tend to clear as autumn moves toward winter - good news for Mt. Fuji visibility. Posters describe autumn colors around Lake Kawaguchiko as peaking around mid-November, with Fuji itself showing a fresh cap of snow by this point, though lower elevations stay snow-free until later in the season. Posters are consistent that Fuji views vary meaningfully by exact location around the lake - the mountain can be cloud-covered viewed from Kawaguchiko while fully visible from Tanuki-ko at the same time - and consistently recommend dawn as the best viewing window along with checking a live webcam or local forecast (JMA or Tenki) before heading out from Tokyo.
Tripadvisor community · 11月 · 6日前 · Tripadvisorで続きを読む ↗
Fujikawaguchiko-forum threads on a December visit describe this as genuinely the best month to catch Mount Fuji, posters calling clear skies and chillier conditions the real reason the mountain shows more reliably than in hazier seasons. Regulars call Oishi Park on the northern shore of Lake Kawaguchi a real highlight for photography, several posters naming it for unobstructed views. Posters call roads around the Fuji Five Lakes area, sitting near eight hundred meters, capable of turning icy by late December, though several regulars report main roads staying clear even with accumulation nearby. Regulars recommend Shiraito Falls as a real stop regardless of the mountain's visibility, shops and two waterfalls worth the detour. Posters recommend real layers and caution on back roads, several threads noting December driving here shifts fast once a system moves through. The record: 9.3C days feeling like 7C, -3.2C nights, 61.4mm across over 7 days and 73 percent humidity.
FujikawaguchikoDecemberRegular · 12月 · 4日前 · Tripadvisorで続きを読む ↗

地図の富士河口湖町のカードから自分のメモを追加できます。

富士河口湖町のベストシーズンは4月、5月、11月(84/100) — 月別の天気 | SeasonMap