SeasonMapFujikawaguchiko (Mount Fuji) weather in August
Japan
August in Fujikawaguchiko: hot, soaked, with clean air — fine if you can take 20 rainy days.
#11 of 12 months in Fujikawaguchiko · #941 of 1383 destinations to visit in August · comfort 68/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Fujikawaguchiko in August
Other months in Fujikawaguchiko
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.
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.
Add your own note from Fujikawaguchiko's card on the map.
Fujikawaguchiko climate normals — August
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 66°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 177 mm / 7 in | ⛈ soaked |
| Rainy days | 20 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 13.5 h | |
| Wind | 8 km/h / 5 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Fujikawaguchiko in August
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.
BusySummer break (natsuyasumi) in Japan, school holidays in 3 of the markets that fill it(estimated)
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.
What's on in Fujikawaguchiko in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Mount Fuji climbing season
1 Jul – 10 SepTrail seasonBook earlyThe 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 SepFour 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 ↗
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?
Fujikawaguchiko in August — FAQ
- Is August a good time to visit Fujikawaguchiko?
- August in Fujikawaguchiko: hot, soaked, with clean air — fine if you can take 20 rainy days. It ranks #11 of 12 months for Fujikawaguchiko on SeasonMap's comfort score (68/100).
- What is the weather like in Fujikawaguchiko in August?
- In August, Fujikawaguchiko averages a daily high of 28.9°C and a low of 19°C, with about 177 mm of rain over roughly 19.7 rainy days.
- What is the air quality in Fujikawaguchiko in August?
- Fujikawaguchiko has a mean US Air Quality Index of about 38 in August.
Other months in Fujikawaguchiko
Compare Fujikawaguchiko in August
Warmer or cooler than Fujikawaguchiko in August
Similar destinations in East Asia — August
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.