Surf Forecasts:
Sakawa River surf forecast from 6 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 6PM (local time) - 8ft (2.5m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 12PM (local time) - 8ft (2.5m), 9s period, SSE swell with 1,124 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 3AM (local time) - 6ft (1.9m), 8s period with SE swell.
Best Forecast Surf Conditions for Sakawa River this week:
The surf forecast for Sakawa River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 3AM. The primary swell is predicted to be 1.9m and 8s period with a secondary swell of 1.1m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sakawa River in the next 16 days are 2.5m 9s and forecast to arrive on Monday (Sep 07) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Sep 06) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 7th Sep) | 6ft (1.9m) 8s |
| Best Surf | 6PM (Wed 9th Sep) | 8ft (2.5m) 9s |
| Most Powerful | 12PM (Mon 7th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what the next couple of weeks are serving up for the Sakawa River.
Honestly, it’s a tough beat to start. The outlook for the next week and a half is pretty grim. We’ve got a long, drawn-out stretch of poor conditions ahead. The first real chance to scratch an itch isn't even until the very end of the run, and even that is a long shot. Between now and then, it's mostly small, weak, and messy, or just plain flat. There's a big pulse of swell energy pushing through Monday the 7th into Wednesday the 9th, with energy values hitting between 992 and 1295, but the wind and rain are going to trash it. That’s not for surfing.
The only decent looking morning in the first week is Sunday the 6th, with clean 3ft waves from the ESE and a cross-off breeze. But it’s light rain and the score is a zero, so you'd be there for a paddle, not a session. Water temp is sitting at about 82°, which feels a touch warmer than normal for this time of year.
Now, there is a glimmer way out in the second week. We’re looking at a bit of a pulse around Sunday the 21st of September. The morning of Monday the 22nd shows some 2ft waves from the East with clean conditions and a light cross-off breeze. The energy is a paltry 84, so it’s small and weak, but it's the most surfable thing in the whole forecast. It’s a long way off, so don't book the trip just yet, but keep an eye on it.
Apart from that one minor window, it's a desert. Flick through the channels for a while, the Sakawa River is on a serious drought.
Rusty.
Short Range ForecastHeavy rain (total 293mm), heaviest during Sun night. Warm (max 26°C on Mon afternoon, min 21°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 28mm), heaviest during Wed night. Warm (max 27°C on Wed morning, min 20°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ESE 7 | ESE 8 | SE 8 | SSE 8 | SSE 9 | SSE 9 | S 9 | SSE 8 | S 10 | SSW 10 | SSW 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 8 | S 8 | ESE 14 | ESE 14 | ESE 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 56 | 157 | 381 | 987 | 1073 | 627 | 203 | 179 | 660 | 651 | 705 | 586 | 196 | 130 | 55 | 54 | 40 | 45 | 37 | 40 | 133 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross | cross | cross-on | cross | glassy | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 3:36PM1.25m | 10:48PM1.25m | 3:45PM1.33m | 1:09AM1.28m | 4:04PM1.39m | 2:29AM1.38m | 4:25PM1.43m | 3:26AM1.47m | 4:45PM1.46m | 4:15AM1.53m | 5:05PM1.48m | 4:59AM1.54m | 5:24PM1.50m | ||||||||
Low Tide | 7:15PM1.21m | 7:42AM0.29m | 8:41PM1.09m | 8:43AM0.22m | 9:20PM0.95m | 9:30AM0.17m | 9:53PM0.79m | 10:09AM0.18m | 10:25PM0.63m | 10:43AM0.24m | 10:57PM0.49m | 11:14AM0.34m | 11:29PM0.37m | ||||||||
 |  |  | | |  | | |  |  | | | |  |  | | |  |  | | | |
 | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | 6:04 | — | — | 6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — |
mm | 5 | 41 | 164 | 42 | 3 | 6 | 26 | 2 | 4 | 2 | 2 | 21 | 2 | — | 1 | — | — | — | — | — | — |
Temp °C | 21 | 21 | 24 | 25 | 26 | 26 | 25 | 25 | 26 | 27 | 27 | 22 | 21 | 21 | 21 | 22 | 22 | 22 | 24 | 26 | 24 |
Feels °C | 19 | 20 | 25 | 29 | 30 | 30 | 30 | 29 | 30 | 31 | 31 | 22 | 22 | 22 | 23 | 24 | 23 | 24 | 26 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 8 | SE 8 | SE 11 | SSE 9 | SSE 9 | S 9 | SSE 8 | SSW 10 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 7 | S 8 | S 8 | S 8 | S 8 | ESE 14 |
| kJ | 56 | 157 | 381 | 5 | 1073 | 627 | 203 | 179 | 245 | 431 | 575 | 586 | 196 | 130 | 55 | 54 | 40 | 45 | 29 | 28 | 133 |
Swell 2 Height (m) Direction Period (s) | SSW 9 | — | S 9 | — | E 8 | SSW 11 | SE 9 | SSW 9 | SE 8 | SE 8 | ESE 10 | E 16 | ESE 9 | ESE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 9 | SSW 8 |
| kJ | 8 | — | 104 | — | 98 | 24 | 197 | 118 | 151 | 101 | 10 | 5 | 9 | 10 | 14 | 9 | 10 | 19 | 24 | 23 | 22 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SW 10 | S 11 | — | — | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | E 16 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | ESE 14 | ESE 14 | S 13 |
| kJ | 6 | 4 | 63 | — | — | 28 | 17 | 10 | 10 | 10 | 5 | 5 | 4 | 17 | 16 | 16 | 16 | 14 | 37 | 40 | 14 |
Wind waves Height (m) Direction Period (s) | NNE 4 | NNE 5 | NNE 4 | SSE 8 | SSW 10 | — | — | — | S 10 | SSW 10 | SSW 9 | NNE 3 | NE 4 | NE 3 | ENE 3 | — | NE 3 | NE 3 | NE 2 | — | — |
| kJ | 50 | 65 | 10 | 987 | 698 | — | — | — | 660 | 651 | 705 | 13 | 6 | 2 | 3 | — | 2 | 1 | 1 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 450 | 450 | 27 | 515 | 100 | 68 | 58 | 9 | 0 | 515 | 9 | 30 | 0 | 9 | 0 | 73 | 89 | 73 | 0 | 73 | 0 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Sakawa River Surf forecast
The above surf forecast table for Sakawa River provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sakawa River can be found by selecting the local surf guide option on the grey menu. Our Sakawa River surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Sakawa River) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Sakawa River may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Sakawa River is 2 km (1 miles) from Odawara. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Odawara. Odawara has rooms for a wide range of budgets as well as car hire and transport links.
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