Japan 
In numbers.
Jun
Sep–Nov
Best months
1,026m
Elevation
The water at Hayato Great Falls, month by month
It roars from September to October.
The fullest months: from September to October.
- 28%Jan
- 29%Feb
- 49%Mar
- 60%Apr
- 62%May
- 70%Jun
- 70%Jul
- 62%Aug
- 81%Sep
- 100%Oct
- 69%Nov
- 42%Dec
Best months to go, with plenty of water and pleasant days: June and from September to November.
Estimate from rain, snowmelt and evaporation month by month (NASA POWER, 1991–2020) around the falls. Dams upstream can change the real flow.
Waterfall
Hayato Great Falls is a waterfall in Japan. It lies within Tanzawa-Ōyama Quasi-National Park.
Getting there.
- Kawaranearest town · 10 km in a straight line
- Tokyo Haneda International Airport (HND)nearest airport with scheduled flights · 57 km in a straight lineCar hire at HND airport (Tokyo)Discover Cars · Affiliate link↗
- June and from September to Novemberbest months to go (estimate)
Plan your visit
Stay, explore and get there
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
Seen from the sky.
8 × 8 km of cloud-free satellite image, with what OpenStreetMap knows around the falls.
N
2 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 8 × 8 km, north up. Points © OpenStreetMap contributors.
The line follows the river as mapped in OpenStreetMap; heights from the 30 m Copernicus model, which smooths narrow drops — the published height of the falls is the one above.
Around the falls the river drops 334 m in 1.4 km.
What is around.
- —viewpoints
- —waymarked walking routes
- —car parks
- —swimming spots
- —picnic sites
- 1toilets
- —information boards and visitor centres
- —bus stops within 1 km
- 1other named waterfalls within 4 km雷滝
- —caves
- 11campsitesボスコオートキャンプ場, Kannogawa camping ground, BOSCOオートキャンプベース and 8 more
- 11hotels, B&Bs and huts within 6 km青山荘 (Seizanso), みはる, 作治小屋 and 8 more
- —restaurants and cafés within 3 km
Counted in OpenStreetMap, the map anyone can edit, up to 2 km around the falls (unless noted). A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Towns nearby
- Kawara10 km in a straight line
- Kotsubaki11 km in a straight line
- Sagamihara12 km in a straight line
- Hadano14 km in a straight line
- Uenohara15 km in a straight line
- Minawa15 km in a straight line
- Matsuda-sōryō15 km in a straight line
- Yamakita16 km in a straight line
Weather
The weather, month by month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon °C | 2 | 3 | 7 | 12 | 17 | 20 | 23 | 25 | 21 | 15 | 10 | 4 |
| Night °C | -8 | -7 | -4 | 1 | 7 | 11 | 16 | 17 | 13 | 7 | 0 | -5 |
| Rain & snow (mm) | 66 | 67 | 115 | 129 | 142 | 181 | 180 | 155 | 215 | 222 | 97 | 69 |
| Wet days | 6 | 7 | 10 | 11 | 12 | 15 | 17 | 15 | 15 | 12 | 9 | 7 |
| Sun h/day | 6.1 | 5.8 | 5.8 | 6.1 | 5.9 | 4.2 | 4.9 | 6.3 | 4.6 | 4.2 | 4.8 | 5.5 |
| Snow on the ground (cm) | 8 | 8 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
Long-term averages 1991–2020 (NASA POWER) for a cell about 55 km wide, with temperatures carried to the height of the falls (1,026 m) at −6.5 °C per 1,000 m. Not a forecast.
Photos
Through visitors' eyes.
Recent years
Wet years and dry years
Rain of each month as a share of the 1991–2020 average. A wet season above 100 % usually means a fuller waterfall.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 191% | 61% | 121% | 155% | 74% | 130% | 244% | 32% | 81% | 110% | 19% | 23% |
| 2021 | 130% | 104% | 138% | 94% | 98% | 79% | 197% | 193% | 88% | 81% | 98% | 157% |
| 2022 | 30% | 101% | 87% | 180% | 124% | 73% | 122% | 123% | 126% | 55% | 104% | 72% |
| 2023 | 31% | 74% | 116% | 92% | 154% | 241% | 38% | 105% | 109% | 60% | 67% | 35% |
| 2024 | 66% | 162% | 170% | 103% | 164% | 188% | 72% | 254% | 72% | 114% | 150% | 2% |
| 2025 | 42% | 20% | 151% | 126% | 176% | 74% | 76% | 48% | 127% | 81% | 32% | 89% |
130% wetter than usual 70% drier than usual
Compare with the waterfalls nearby.
Hayato Great Falls
Japan
- —Height
- —Average flow
- Jun, Sep–NovBest months
About these numbers
| Names, height, width, river | Wikidata (Q38389) · CC0 |
|---|---|
| Climate | NASA POWER, 1991–2020 |
| Relief, river profile, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Paths, viewpoints, parking | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
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