Fujikawaguchiko (Mount Fuji) weather in September

September in Fujikawaguchiko: warm, soaked, with clean air — fine if you can take 18 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Fujikawaguchiko🇯🇵 Japan · Mainland Japan · Trekking71
  1. 73Jan
  2. 74Feb
  3. 73Mar
  4. 82Apr
  5. 84May
  6. 74Jun
  7. 63Jul
  8. 68Aug
  9. 71Sep
  10. 77Oct
  11. 81Nov
  12. 76Dec

#10 of 12 months in Fujikawaguchiko · #932 of 1413 destinations to visit in September · comfort 71/100 (tier B)

Days
24°C
Nights
15°C
Wet days
18
Sun
7.8 h
Humidity
87%
Daylight
12 h
Fujikawaguchiko, Japan
Photo: Nizar F · Pexels

Traveller notes on Fujikawaguchiko in September

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 · September · 1 month ago · Read more on Tripadvisor ↗

Other months in Fujikawaguchiko

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 · February · 1 month ago · Read more on Tripadvisor ↗
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 · December · 1 month ago · Read more on Tripadvisor ↗
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 · June · 1 month ago · Read more on Tripadvisor ↗
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 · January · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Fujikawaguchiko's card on the map.

Fujikawaguchiko climate normals — September

Daytime high24°C / 76°F🌤 warm
Nighttime low15°C / 60°F
Feels like (high)27°C / 81°F
Rainfall210 mm / 8.3 in⛈ soaked
Rainy days18 days
Humidity87%💦 very humid
Dew point17°C / 62°F
Sunshine7.8 h/day
Daylight12.4 h
Wind8 km/h / 5 mph
Air quality (US AQI)33🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Fujikawaguchiko in September

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Quietschool holidays in 3 of the markets that fill it, one of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Fujikawaguchiko's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherFujikawaguchiko's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in Fujikawaguchiko in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Opening

    Mount Fuji climbing season

    1 Jul – 10 SepTrail seasonBook early

    The Yoshida trail from this side opens on 1 July, the Shizuoka trails on the 10th, and all four close on 10 September. Outside those ten weeks the huts are shut and the mountain is a serious winter climb. Source ↗

  • Rule

    Mount Fuji climbing fee

    1 Jul – 10 Sep

    Four thousand yen per climber on every trail, reserved and paid online before you go. The Yoshida gate is capped at 4,000 people a day and closed between 2pm and 3am to stop overnight dashes. Source ↗

  • Hazard

    Typhoon season

    1 Aug – 15 Oct · usuallyClosures

    A typhoon closes the Subaru Line and the Fuji trails, stops the buses to the fifth station and hides the mountain for a couple of days. The Chuo expressway buses from Tokyo are often cancelled the same day. Source ↗

What's on around the world in September →

Nearby, and something's on

Within 300 km of Fujikawaguchiko — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Fujikawaguchiko?

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Fujikawaguchiko in September — FAQ

Is September a good time to visit Fujikawaguchiko?
September in Fujikawaguchiko: warm, soaked, with clean air — fine if you can take 18 rainy days. It ranks #10 of 12 months for Fujikawaguchiko on SeasonMap's comfort score (71/100).
What is the weather like in Fujikawaguchiko in September?
In September, Fujikawaguchiko averages a daily high of 24.4°C and a low of 15.4°C, with about 210.4 mm of rain over roughly 17.7 rainy days.
What is the air quality in Fujikawaguchiko in September?
Fujikawaguchiko has a mean US Air Quality Index of about 33 in September.

Within 300 km: Matsumoto's Kamikochi open season around 17 Apr – 15 Nov, and Hakuba's High trails and huts open around 1 Jul – 15 Oct.