
Surf Forecasts:
Sakawa River surf forecast from 22 Jul 2026:
- Best quality surf: Friday 24 Jul, 9PM (local time) - 1ft (0.3m), 16s period, SE swell with glassy winds.
- Most powerful swell: Sunday 26 Jul, 6PM (local time) - 1.5ft (0.4m), 14s period, SE swell with 53 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 9PM (local time) - 1ft (0.3m), 16s 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 Friday (Jul 24) at 9PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.3m and 16s. Another secondary swell of 0.4m and 3s is also forecast. 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 0.4m 14s and forecast to arrive on Sunday (Jul 26) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Wednesday (Jul 29) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 24th Jul) | 1ft (0.3m) 16s |
| Best Surf | 9PM (Fri 24th Jul) | 1ft (0.3m) 16s |
| Most Powerful | 6PM (Sun 26th Jul) | 1.5ft (0.4m) 14s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you – the next fortnight or so is a tough watch for the Sakawa River. We’re looking at a long stretch of frustratingly small, weak, and messy surf. The first recommendation doesn’t pop up until Sunday, the 2nd of August, so there’s a gap of about 10 days from now with virtually nothing worth paddling out for. After that, there’s a brief pulse of swell, but it’s far from perfect.
Right through from Thursday the 23rd of July all the way to Saturday the 1st of August, it’s a ghost town. Swell heights barely scrape 2 ft, periods are either short or inconsistent, and the combined swell energy is weak, sitting mostly under 100 – we’re talking figures like 44, 36, 70, 99. Winds are light but often cross-onshore or variable, so the surface is chopped or rippled. The river mouth just isn’t firing. Not a single session worth chasing.
But then, on Sunday the 2nd of August, things finally wake up. The morning looks like the pick of the whole outlook. The Sakawa River gets a clean 3 ft ESE groundswell with a very long period of 16 seconds, and the morning is glassy with 3 mph ESE breeze – that’s clean, clean, clean. The combined energy jumps to 475, which is solid moderate energy. That’s a proper groundswell, so expect some real push and longer lulls between sets. It’s a river break, so it can handle that long period nicely. Crowds are only a *sometimes* thing here, so you might get a few heads but nothing crazy. This is the standout – if you’ve got a window, be on it Sunday morning.
The afternoon on the 2nd sees the swell building to 4 ft from the ESE, period still a long 16 seconds, but the wind swings SSW at 6 mph, making it cross-onshore. The energy jumps to 724, but the wind messes the surface up a little. It’s still surfable, but not as clean as the morning.
Monday the 3rd of August – the swell peaks around 5 ft from the ESE with a very long period of 17-18 seconds. The combined energy is cranking – 1304 in the morning, 1381 in the afternoon. That’s strong energy. But here’s the thing – 5 ft with that period will have some serious grunt, and it’s only really for experienced surfers. Winds are cross-onshore both sessions (ESE 3 mph morning, SSW 6 mph afternoon), so it won’t be perfect. The tide or something else might make it a bit tricky too – the forecast flags it as marginal. It’s big and powerful, but not clean. If you’re an expert and hungry, you might find some lumps, but don’t expect a classic.
Tuesday the 4th of August drops back a touch – 4 ft in the morning, 3 ft in the afternoon, still ESE groundswell with periods around 14-16 seconds. Winds are cross-onshore again, energy is moderate to strong (895 morning, 544 afternoon). Rain showers are possible. Still marginal – better suited to stronger paddlers who don’t mind a bit of chop.
From Wednesday the 5th of August onward, it fades fast. Heights drop below 3 ft, periods shorten, energy plummets back under 205, and the winds stay light but cross-onshore or onshore. By Friday the 7th of August, it’s back to glassy 1.0 ft and no energy (42). The window closes.
No other breaks are listed – it’s all Sakawa River. Water temperature anomaly info isn’t supplied, so I can’t comment on that.
Bottom line: the only real window is Sunday morning, 2nd of August. Get in early. The rest is either flat or too messy for most. Keep an eye on it though – forecasts can change.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Sat morning. Warm (max 32°C on Thu morning, min 26°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 28mm), heaviest during Sun night. Warm (max 28°C on Sun afternoon, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | ||||||||||||||
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) | SW 4 | S 6 | SE 10 | SE 18 | SE 18 | SE 17 | SE 16 | SE 16 | SE 16 | SE 15 | SE 15 | SE 11 | SE 14 | SE 14 | SE 14 | SE 10 | SE 10 | SE 10 | SE 10 |
Wave Graph | |||||||||||||||||||
12 | 20 | 16 | 49 | 49 | 45 | 41 | 40 | 39 | 35 | 42 | 40 | 52 | 51 | 36 | 36 | 36 | 35 | 35 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross | on | cross-on | glassy | on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | glassy | cross | cross-on | glassy |
High Tide | 9:42PM1.35m | 1:52PM1.02m | 10:23PM1.31m | 4:25PM1.11m | 11:26PM1.28m | 4:24PM1.19m | 00:48AM1.28m | 4:44PM1.26m | 1:59AM1.31m | 5:06PM1.31m | 2:54AM1.37m | 5:29PM1.36m | |||||||
Low Tide | 5:40AM0.52m | 3:15PM1.02m | 6:57AM0.47m | 5:07PM1.11m | 8:03AM0.40m | 7:57PM1.13m | 8:56AM0.32m | 9:09PM1.09m | 9:39AM0.25m | 9:52PM1.04m | 10:16AM0.18m | 10:26PM0.97m | |||||||
— | 4:43 | — | — | 4:45 | — | — | 4:46 | — | — | 4:47 | — | — | 4:47 | — | — | 4:48 | — | — | |
6:54 | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | |
mm | — | — | 2 | — | — | 2 | 2 | 3 | 3 | 6 | 1 | 4 | 9 | — | 1 | 3 | 2 | 2 | 1 |
Temp °C | 29 | 32 | 32 | 28 | 29 | 29 | 27 | 28 | 29 | 27 | 27 | 28 | 26 | 25 | 26 | 25 | 27 | 28 | 26 |
Feels °C | 34 | 36 | 36 | 34 | 33 | 33 | 33 | 33 | 34 | 33 | 31 | 32 | 30 | 28 | 29 | 29 | 31 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | S 6 | SSW 6 | SE 10 | SE 10 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | SE 10 | SSW 8 | SE 10 | SE 10 | SE 10 | S 8 |
4 | 20 | 12 | 25 | 14 | 18 | 40 | 35 | 35 | 35 | 42 | 40 | 40 | 37 | 22 | 36 | 36 | 35 | 35 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 10 | SE 10 | S 5 | S 6 | SSE 9 | SE 16 | SE 16 | SE 16 | SE 15 | SE 4 | SE 14 | SSW 5 | S 5 | SE 10 | SSW 8 | SSW 9 | S 6 | SE 10 |
5 | 16 | 16 | 4 | 7 | 8 | 41 | 40 | 39 | 35 | 4 | 33 | 5 | 9 | 36 | 22 | 26 | 12 | 35 | |
Swell 3 Height (m) Direction Period (s) | SE 11 | E 10 | E 10 | SE 18 | SE 18 | SE 17 | SE 3 | ESE 4 | S 8 | S 8 | SE 15 | SE 4 | SE 14 | SE 14 | SE 14 | SE 13 | SE 13 | SSW 9 | SE 13 |
4 | 8 | 8 | 49 | 49 | 45 | 2 | 2 | 1 | 5 | 34 | 5 | 52 | 51 | 30 | 28 | 28 | 15 | 27 | |
Wind waves Height (m) Direction Period (s) | SW 4 | — | — | — | — | SE 2 | — | — | SE 4 | SE 4 | — | SSW 8 | — | E 5 | ESE 5 | — | — | — | — |
12 | — | — | — | — | 1 | — | — | 3 | 4 | — | 21 | — | 8 | 2 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 68 | 50 | 68 | 73 | 110 | 53 | 0 | 53 | 53 | 58 | 50 | 53 | 73 | 73 | 58 | 0 | 50 | 53 | 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.










