
Surf Forecasts:
Sakawa River surf forecast from 8 Jul 2026:
- Best quality surf: Thursday 9 Jul, 12AM (local time) - 5.5ft (1.7m), 14s period, SSE swell with glassy winds.
- Most powerful swell: Friday 10 Jul, 6PM (local time) - 7.5ft (2.3m), 16s period, S swell with 2,702 kJ wave energy.
- Next surfable swell (1★+): Thursday 9 Jul, 12AM (local time) - 5.5ft (1.7m), 14s period with SSE 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 Thursday (Jul 09) at 12AM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 0.9m and 17s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Sakawa River in the next 16 days are 2.3m 16s and forecast to arrive on Friday (Jul 10) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 12) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 9th Jul) | 5.5ft (1.7m) 14s |
| Best Surf | 12AM (Thu 9th Jul) | 5.5ft (1.7m) 14s |
| Most Powerful | 6PM (Fri 10th Jul) | 7.5ft (2.3m) 16s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
Alright folks, Rusty here with a look at the Sakawa River region. Let’s get straight into it.
The forecast is a bit of a mixed bag over the next couple of weeks. We’ve got some solid sized swell on the way, but the wind is going to be the main character for much of it, making things messy. The real standout is a very specific window towards the end of the first week that looks absolutely magic.
We kick off on Wednesday the 8th of July with a chunky 6ft SSE groundswell. The period is a nice long 16 seconds, so it’s got plenty of push. The problem? A cross-onshore wind is going to mess up the surface, leaving it choppy. The water is sitting a touch colder than usual for this time of year at 75°F.
The wind stays onshore through Thursday the 9th and into Friday the 10th, with the swell hovering around 5ft to 8ft. This is all SSE and S swell, and the wind just won’t get out of the way. It’s not the kind of stuff you’d paddle out for unless you’re really keen.
Now, lock in Sunday the 12th of July for the best session of the whole forecast. Early morning we get a drop in swell to a clean 5ft, but the magic is in the wind. It’s glassy. Absolutely dead calm. The SSW groundswell is a long period 15 seconds, which is a lovely wave, but at a river mouth, that long period might make it a bit straight. Still, for a few hours, the conditions should be superb and the wave energy is strong (1141). The rip should be easy to manage.
After that Sunday morning peak, the swell drops away quickly. By Monday and Tuesday the 13th and 14th, the waves are down to less than 3ft, and the wind goes light and variable. It’s surfable, but nothing to write home about.
From Wednesday the 15th onward, we’re into a long, flat spell. The swell barely cracks 4ft for most of it, and the direction swings around to the ESE, which is not the optimum SE direction for this spot. The wind stays onshore, so the conditions are poor. This poor run of surf is likely to last right through until the end of the forecast period on the 23rd, with only tiny, weak scraps on offer.
So, to sum it up: don’t waste your time on the mid-week stuff. The only real standout is a very early dawn patrol on Sunday the 12th of July. If the river mouth is handling that long period swell, you’ll have clean, glassy chest-to-head-high waves all to yourself. If you miss that window, you’re looking at a long dry spell with nothing worth paddling for. The setup later in the run looks more like a kite surfing zone than a paddle surfing one.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri morning, min 22°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 26mm), heaviest during Sun night. Warm (max 27°C on Sun afternoon, min 23°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Wed 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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) | SSE 16 | SSE 14 | SSE 14 | S 14 | S 15 | S 14 | S 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | S 11 | SSW 11 | SSW 11 | SSW 10 | SE 10 | ESE 9 |
Wave Graph | |||||||||||||||||||||
1684 | 1083 | 1121 | 1033 | 1676 | 1285 | 2701 | 2365 | 2514 | 2299 | 1571 | 1079 | 569 | 326 | 192 | 154 | 126 | 88 | 58 | 47 | 56 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | cross | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | glassy | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | cross-off | cross-on |
High Tide | 10:19PM1.38m | 12:24PM1.08m | 11:05PM1.37m | 2:22PM1.17m | 00:00AM1.38m | 3:42PM1.29m | 1:04AM1.41m | 4:37PM1.39m | 2:07AM1.45m | 5:21PM1.45m | 3:07AM1.51m | 5:59PM1.48m | 4:02AM1.56m | ||||||||
Low Tide | 3:45PM0.76m | 5:38AM0.51m | 4:48PM0.92m | 6:49AM0.38m | 6:20PM1.05m | 7:55AM0.23m | 7:58PM1.11m | 8:54AM0.09m | 9:12PM1.12m | 9:48AM-0.02m | 10:07PM1.09m | 10:37AM-0.09m | 10:53PM1.03m | 11:23AM-0.09m | |||||||
— | — | 4:35 | — | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | |
7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:59 | — | — | 6:59 | — | 6:58 | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 6 | — | 4 | 12 | 2 | 1 | — | — |
Temp °C | 25 | 23 | 26 | 26 | 24 | 27 | 27 | 24 | 26 | 26 | 24 | 26 | 27 | 25 | 25 | 24 | 23 | 24 | 24 | 24 | 27 |
Feels °C | 26 | 26 | 28 | 27 | 27 | 29 | 28 | 26 | 29 | 27 | 27 | 30 | 29 | 28 | 30 | 28 | 27 | 28 | 29 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | SSE 16 | SSE 14 | SSE 14 | S 14 | S 15 | S 14 | S 16 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 13 | SSW 12 | S 11 | SSW 11 | SSW 11 | SSW 10 | SSE 6 | ESE 9 |
1684 | 1083 | 1121 | 1033 | 1676 | 1285 | 2701 | 2365 | 2514 | 2299 | 1571 | 1079 | 569 | 326 | 192 | 154 | 126 | 88 | 58 | 27 | 56 | |
Swell 2 Height (m) Direction Period (s) | S 16 | S 17 | S 19 | S 17 | E 9 | SSW 18 | SSW 22 | SE 10 | SE 9 | ESE 10 | ESE 10 | SE 10 | SE 10 | S 4 | S 5 | SE 10 | SE 10 | SE 8 | SE 10 | SE 10 | S 6 |
542 | 443 | 182 | 386 | 55 | 781 | 181 | 82 | 55 | 61 | 9 | 34 | 28 | 6 | 7 | 25 | 23 | 17 | 47 | 47 | 17 | |
Swell 3 Height (m) Direction Period (s) | — | ESE 8 | ESE 8 | ESE 8 | — | ESE 9 | — | — | — | — | — | SE 10 | ESE 9 | SE 10 | SE 10 | SW 13 | SE 12 | SE 9 | — | SSW 10 | SSW 9 |
— | 67 | 23 | 24 | — | 26 | — | — | — | — | — | 28 | 8 | 15 | 24 | 25 | 6 | 14 | — | 38 | 17 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSW 4 | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 53 | 0 | 53 | 58 | 24 | 53 | 108 | 0 | 100 | 115 | 0 | 0 | 108 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 50 |
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.











