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Kaifu Rivermouth
Surf spot · Japan
Is it worth the trip?
38Poor out of 100 for your dates
Best on Fri 6: 6 ft swell at 9 s
Tue 3 · 25 out of 100
- Swell
- 4 ft10 scrumbling
- Energy
- 235kJ
- Wind
- NNE 9 kn
- Temp
- 21°C
Wed 4 · 34 out of 100
- Swell
- 5 ft10 scrumbling
- Energy
- 397kJ
- Wind
- NNE 8 kn
- Temp
- 21°C
Thu 5 · 53 out of 100
- Swell
- 6 ft10 scrumbling
- Energy
- 659kJ
- Wind
- SSW 8 kn
- Temp
- 22°C
Fri 6 · 64 out of 100
- Swell
- 6 ft9 scrumbling
- Energy
- 673kJ
- Wind
- ESE 2 kn
- Temp
- 22°C
Sat 7 · 19 out of 100
- Swell
- 3 ft9 scrumbling
- Energy
- 125kJ
- Wind
- NNW 7 kn
- Temp
- 16°C
Sun 8 · 13 out of 100
- Swell
- 2 ft9 scrumbling
- Energy
- 64kJ
- Wind
- ENE 3 kn
- Temp
- 17°C
Mon 9 · 7 out of 100
- Swell
- 2 ft9 scrumbling
- Energy
- 58kJ
- Wind
- NNE 16 kn
- Temp
- 17°C
Tap a day for waves, wind and the temperature. Full forecast
Forecast: next 10 days
Full forecast- Mon 242, too small
- Tue 325, too small
- Wed 434, too small
- Thu 553, fair
- Fri 664, good
- Sat 719, too small
- Sun 813, too small
- Mon 97, too small
- Tue 1015, too small
- Wed 1163, good
The spot in five facts
- Faces SEtakes swell from the SE
- Offshore: NWwind from the land
- Intermediate +who it suits
- Works 3–12 ftof swell
- Water 23 °C2 mm shorty
Full forecast
every day, every number
The score doesn't know rips, currents, rocks or your skill.
| Day | Score for experts | Swell | Energy | Wind | Temp |
|---|---|---|---|---|---|
| Mon 2Nov | 42, too small | 5 ft10 scrumbling6 ft at break (est.) | 344kJ | wind from the south-west, 5 knots | 23°C |
| Tue 3Nov | 25, too small | 4 ft10 scrumbling5 ft at break (est.) | 235kJ | wind from the north-north-east, 9 knots | 21°C |
| Wed 4Nov | 34, too small | 5 ft10 scrumbling6 ft at break (est.) | 397kJ | wind from the north-north-east, 8 knots | 21°C |
| Thu 5Nov | 53, fair | 6 ft10 scrumbling8 ft at break (est.) | 659kJ | wind from the south-south-west, 8 knots | 22°C |
| Fri 6Nov | 64, good | 6 ft9 scrumbling8 ft at break (est.) | 673kJ | wind from the east-south-east, 2 knots | 22°C |
| Sat 7Nov | 19, too small | 3 ft9 scrumbling5 ft at break (est.) | 125kJ | wind from the north-north-west, 7 knots | 16°C |
| Sun 8Nov | 13, too small | 2 ft9 scrumbling3 ft at break (est.) | 64kJ | wind from the east-north-east, 3 knots | 17°C |
| Mon 9Nov | 7, too small | 2 ft9 scrumbling3 ft at break (est.) | 58kJ | wind from the north-north-east, 16 knots | 17°C |
| Tue 10Nov | 15, too small | 3 ft8 scrumbling4 ft at break (est.) | 109kJ | wind from the north-north-east, 8 knots | 17°C |
| Wed 11Nov | 63, good | 6 ft8 ssoft8 ft at break (est.) | 490kJ | wind from the north, 9 knots | 15°C |
Energy is the swell's power, in kJ per metre of wave. Wind is in knots, the arrow where it blows to; green is offshore. More
Tide
- Mon 2 NovLow 05:33 −0.7 mHigh 13:02 +0.6 mLow 18:56 +0.0 m
- Tue 3 NovHigh 00:01 +0.4 mLow 06:54 −0.6 mHigh 14:02 +0.6 mLow 20:11 −0.2 m
- Wed 4 NovHigh 01:38 +0.4 mLow 08:08 −0.6 mHigh 14:49 +0.6 mLow 21:05 −0.4 m
Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.
Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.
Best time to go
No month stands out
Good days in a typical week, each month, for intermediate surfers, from 2016 on (history scored the same way).
- Jan0of 7: a trip from Sat 2 Jan
- Feb1of 7: a trip from Sat 6 Feb
- Mar1of 7: a trip from Sat 6 Mar
- Apr1of 7: a trip from Sat 3 Apr
- May1of 7: a trip from Sat 1 May
- Jun1of 7: a trip from Sat 5 Jun
- Jul1of 7: a trip from Sat 3 Jul
- Aug1of 7: a trip from Sat 7 Aug
- Sep1of 7: a trip from Sat 4 Sept
- Oct1of 7: a trip from Sat 2 Oct
- Nov1of 7: a trip from Tue 3 Nov
- Dec1of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast.
Map
the spot and its town
Kaifu Rivermouth on Google Maps · Directions
Each place wears its best day on these dates, a surf spot for experts: green good, amber fair, pale red poor, as the key says.
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One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
More surf near here
4 places
- Takegashima 6.6 km away
- Shishikui 6.7 km away
- Uchizuma 8.4 km away
- Ikumi 10.8 km away
About
the place in full, sources, credits
About Kaifu Rivermouth
Facing, offshore wind, exposure, level and swell range are estimated.
The spot faces SE (113°), so it takes swell from the SE. The wind blows offshore from the NW (293°). It is exposed to the open swell. It suits intermediate surfers and up. It works in 3–12 ft of swell. The sea floor shelves moderately: 10 m deep about 350 m out (1 in 33). On a typical 5 ft, 11 s swell the waves here would crumble. The sea is about 17°C in February, its coldest month (3/2 wetsuit), and 28°C in August, its warmest (no wetsuit). The town to stay in is Tomoura, 0.6 km away (about 5 min by car).
Water about 23°C: 2 mm shorty. Typical sea temperature for the time of year, not a forecast.
The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).
Rough cost (estimate): about US$1,310–US$2,510 each
about US$1,310–US$2,510 each · 6 nights, 2 sharing: flights, hire car, stay, food, board and wetsuit.
Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return MDW to KIX, estimated from distance and season, changing at SFO, full-service airlines, with a hold bag | about US$677–US$1,410 |
| Hire car | 6 days, shared | about US$107–US$174 |
| Stay | 6 nights, a mid-range double, shared | about US$208–US$348 |
| Food | 7 days eating out | about US$234–US$442 |
| Board and wetsuit | 5 days, or about US$114 to fly your own | about US$87–US$141 |
| Total | about US$1,310–US$2,510 |
For 2 people sharing a room. Lessons, lift-pass deals and insurance are extra. Prices from public sources, checked in 2026.
Where to stay: 3 towns
about 5 min by car · 5 places to stay
about US$80/nightcountry average
About Tomoura its beds, food and every spot near it
- Beds in Kannoura on Booking.com
about 15 min by car · 10 places to stay
- Beds in Mugiura on Booking.com
about 20 min by car · 2 places to stay
About US$80 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
Getting there: about 24h 55m
About 24h 55m door to door from Chicago
Fly MDW → KIX, changing at San Francisco International Airport (SFO), then 2h 25m by road
Flights MDW → KIX on your dates · Skyscanner
An estimate, one way; the journey never changes the score.