Surf Forecasts:
Sakawa River surf forecast from 12 Jul 2026:
- Best quality surf: Saturday 18 Jul, 3AM (local time) - 6ft (1.8m), 13s period, SE swell with glassy winds.
- Most powerful swell: Friday 17 Jul, 6PM (local time) - 6ft (1.8m), 14s period, SE swell with 1,382 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 9PM (local time) - 4.5ft (1.3m), 14s period with SSW 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 Sunday (Jul 12) at 9PM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.6m and 4s is also forecast. 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 1.8m 14s and forecast to arrive on Friday (Jul 17) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 12th Jul) | 4.5ft (1.3m) 14s |
| Best Surf | 3AM (Sat 18th Jul) | 6ft (1.8m) 13s |
| Most Powerful | 6PM (Fri 17th Jul) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
Alright folks, Rusty here. Let's have a look at what's on offer for the Sakawa River over the next couple of weeks.
Right off the bat, you’re not going to be rushing for the board. The first proper surf window is a long way off, with a big gap of flat and tiny, messy days stretching from the 12th of July all the way through to the 17th.
The standout moment in this whole forecast is the Friday morning session on the 17th of July. It’s not perfect, but it’s the best we’ll see. The swell is a clean 3 ft from the SE, and the period is a very long 18 seconds – that’s proper groundswell energy, with a combined energy of (484). The big plus is the glassy conditions. With a slight air and the wind going glass, it’s going to be dead smooth out there. Being a river break, that long period should set up nicely. The water is a bit colder than normal at 76 °F, so a wetsuit is a good call.
After that, the next few days get a bit messy. Saturday the 18th holds some size, with 5 ft SE swell, but the wind is cross-shore and the conditions are listed as marginal. The energy is solid (908 on Saturday morning), but it’s not the clean, glassy ride we saw on Friday. It’s a look, but not a stand-out.
The rest of the run from the 19th right through to the 27th of July is mostly a write-off. The swell drops off, the wind gets messy, and the period goes short. There’s a tiny blip of glassy conditions on the 25th of July, but the swell is only 2 ft – surfable if you’re desperate, but very ordinary.
So, to sum it up: the only real window to mark on your calendar is the Friday morning, 17th of July. Set your alarm for that one.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 29°C on Wed morning, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Fri morning. Warm (max 29°C on Wed afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 15 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SE 10 | S 9 | ESE 9 | SSW 5 | S 5 | SE 10 | SE 18 | SE 16 | SE 13 | SE 13 | SE 12 | SE 11 | SE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 736 | 482 | 323 | 203 | 126 | 90 | 58 | 38 | 28 | 60 | 16 | 18 | 39 | 20 | 432 | 1140 | 1179 | 905 | 718 | 638 | 604 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-off | on | cross-on | cross-off | cross | cross-on | cross | glassy | cross-on | cross-on | on | on | glassy | cross-on |
High Tide | 4:37PM1.39m | 2:07AM1.45m | 5:21PM1.45m | 3:07AM1.51m | 5:59PM1.48m | 4:02AM1.56m | 6:33PM1.48m | 4:55AM1.57m | 7:04PM1.46m | 5:45AM1.54m | 7:33PM1.44m | 6:35AM1.46m | 7:58PM1.42m | 7:26AM1.35m | |||||||
Low Tide | 9:12PM1.12m | 9:48AM-0.02m | 10:07PM1.09m | 10:37AM-0.09m | 10:53PM1.03m | 11:23AM-0.09m | 11:35PM0.95m | 12:05PM-0.03m | 00:17AM0.86m | 12:43PM0.08m | 1:00AM0.77m | 1:19PM0.24m | 1:45AM0.69m | ||||||||
 |  | | |  |  |  |  |  | | | | | | | | | | | | | |
 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:41 | — | — | 4:41 |
 | 6:59 | — | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | 6:55 |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 26 | 29 | 29 | 26 | 29 | 29 | 27 | 28 | 27 | 26 | 28 | 28 | 25 | 29 |
Feels °C | 31 | 31 | 32 | 32 | 30 | 31 | 31 | 30 | 32 | 32 | 30 | 32 | 32 | 31 | 31 | 30 | 31 | 31 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | SE 18 | SE 16 | SE 13 | SE 13 | SE 12 | SE 11 | SE 10 |
| kJ | 736 | 482 | 323 | 203 | 126 | 90 | 58 | 38 | 28 | 14 | 16 | 14 | 14 | 15 | 432 | 1140 | 1179 | 905 | 718 | 638 | 604 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 10 | ESE 12 | SE 12 | SE 12 | SE 10 | SE 10 | ESE 10 | SSW 9 | SSW 8 | SSW 8 | SE 10 | ESE 9 | ESE 9 | SW 7 | S 13 | SW 7 | S 8 | S 8 |
| kJ | 23 | 15 | 16 | 16 | 14 | 22 | 35 | 27 | 25 | 9 | 16 | 7 | 7 | 16 | 15 | 15 | 9 | 3 | 9 | 5 | 1 |
Swell 3 Height (m) Direction Period (s) | SE 13 | E 9 | E 9 | E 9 | ESE 9 | SE 9 | — | S 15 | S 14 | S 14 | SE 9 | SSE 9 | SE 10 | SW 8 | SE 10 | SE 10 | SW 9 | — | SW 10 | SW 10 | — |
| kJ | 7 | 6 | 6 | 6 | 8 | 3 | — | 4 | 4 | 4 | 13 | 8 | 4 | 3 | 14 | 15 | 3 | — | 4 | 4 | — |
Wind waves Height (m) Direction Period (s) | S 4 | SSW 5 | — | — | — | — | — | SW 2 | SSW 2 | S 9 | SSW 4 | SSW 5 | S 5 | S 5 | S 5 | S 4 | SSW 4 | — | — | — | — |
| kJ | 5 | 35 | — | — | — | — | — | 1 | 1 | 60 | 8 | 18 | 39 | 20 | 23 | 24 | 5 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 108 | 0 | 0 | 0 | 0 | 24 | 68 | 68 | 68 | 114 | 67 | 114 | 114 | 68 | 0 | 114 | 27 | 27 | 27 | 0 | 27 |
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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