
Surf Forecasts:
Sakawa River surf forecast from 24 Jul 2026:
- Best quality surf: Sunday 26 Jul, 3AM (local time) - 1ft (0.3m), 15s period, SE swell with glassy winds.
- Most powerful swell: Sunday 26 Jul, 3PM (local time) - 1.5ft (0.4m), 14s period, SE swell with 74 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 3AM (local time) - 1ft (0.3m), 15s 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 Sunday (Jul 26) at 3AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.3m and 15s. Another secondary swell of 0.5m and 4s 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 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Friday (Jul 31) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 26th Jul) | 1ft (0.3m) 15s |
| Best Surf | 3AM (Sun 26th Jul) | 1ft (0.3m) 15s |
| Most Powerful | 3PM (Sun 26th Jul) | 1.5ft (0.4m) 14s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming up.
Right, straight up I gotta be honest with you – for a good long while, this forecast is pretty grim for paddle surfing. We’re looking at a run of days with tiny, weak swell and hardly any push. For the first couple of days, you’re looking at waves barely 1.0 ft to 1 ft with very weak combined energy (mostly under 100). The wind is mostly cross or cross-onshore, so the surface is going to be a bit messy. Saturday the 25th and Sunday the 26th? Not worth your time. That carries right on through the end of July and into the start of August. The water temp is sitting about 81°F with a 2°F anomaly, so it’s a touch warmer than average for the time of year, but that’s about the only good thing going on.
Now, there’s a bit of a tease. On Monday the 27th of July, in the afternoon, the wind goes glassy at Sakawa River. The swell is still tiny – only 2 ft from the SE with a short 10-second period, and the combined energy is just 100, so it’s weak. But for half a day, if you’re desperate and the glassy conditions are right, you might find a few very ordinary lines. I wouldn’t call it a standout, just a brief window.
The real action, if you’re an expert, comes later. We’ve got a big pulse of swell arriving around the 3rd of August. The swell builds from 5 ft on Monday morning, pushing up to 5 ft by the afternoon, and it keeps going. By the 5th, Wednesday morning, we’re seeing 7 ft from the ESE with a very long 17-second period, and combined energy is surging past 2800 – that’s serious power. The wind is cross-offshore from the NNE at 16 mph, so the face should be clean. But let’s be clear: at 7 ft, it’s getting into expert territory, and with that long period (over 15 seconds), the wave will be bowling and is best suited to the river mouth setup here at Sakawa River. It’s going to be big and walled up.
Then, the absolute standout if you’re a hardened charger is Friday the 7th of August. The morning shows a serious 12 ft from the ESE at an 18-second period, with a massive combined energy of 7444. The wind is cross-offshore from the NNW at 12 mph, so it’s clean. But I have to warn you – the forecast notes specifically say this is too big for this break. This is for experts only, and even then, it’s going to be a heavy, powerful river mouth wave. The morning of Saturday the 8th also looks massive – 12 ft again, but glassy from the WSW. Again, that’s well into the “too big for this break” territory. The rest of the second week drops back to more manageable but still marginal 5 ft to 6 ft swell, but with onshore or cross-onshore winds, so not ideal.
So to sum it up: the first week is a write-off for all but the most patient, with that one glassy moment on Monday the 27th being a small highlight. The second week offers a big, powerful, expert-only window, with the 7th of August morning being the pick of the bunch if you’ve got the skills and the nerve. Tackle it if you’re ready, but don’t say I didn’t warn you.
Rusty
Short Range ForecastHeavy rain (total 28mm), heaviest during Sun night. Warm (max 30°C on Sat morning, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Tue afternoon. Warm (max 27°C on Wed morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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) | SE 16 | SE 16 | SE 15 | SE 15 | SE 14 | SE 14 | SE 14 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 |
Wave Graph | |||||||||||||||||||||
40 | 39 | 35 | 42 | 74 | 52 | 51 | 50 | 50 | 35 | 35 | 35 | 24 | 33 | 31 | 23 | 23 | 23 | 23 | 13 | 14 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | glassy | cross-on | glassy | glassy | cross | cross | on | cross | glassy | cross-on | cross-off | cross | cross-on | cross-off |
High Tide | 4:24PM1.19m | 00:48AM1.28m | 4:44PM1.26m | 1:59AM1.31m | 5:06PM1.31m | 2:54AM1.37m | 5:29PM1.36m | 3:40AM1.42m | 5:51PM1.39m | 4:21AM1.46m | 6:13PM1.42m | 5:00AM1.48m | 6:35PM1.44m | ||||||||
Low Tide | 7:57PM1.13m | 8:56AM0.32m | 9:09PM1.09m | 9:39AM0.25m | 9:52PM1.04m | 10:16AM0.18m | 10:26PM0.97m | 10:50AM0.14m | 10:59PM0.90m | 11:21AM0.13m | 11:31PM0.83m | 11:50AM0.15m | 00:04AM0.75m | ||||||||
4:46 | — | — | 4:47 | — | — | 4:47 | — | — | 4:48 | — | — | 4:48 | — | — | 4:50 | — | — | 4:50 | — | — | |
— | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | |
mm | — | 4 | 6 | — | 2 | 10 | — | 3 | 3 | 1 | 7 | 6 | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 30 | 30 | 26 | 27 | 27 | 26 | 27 | 27 | 25 | 25 | 24 | 24 | 27 | 27 | 25 | 27 | 27 | 26 | 29 | 30 | 27 |
Feels °C | 35 | 34 | 31 | 30 | 31 | 32 | 29 | 31 | 30 | 29 | 29 | 29 | 29 | 30 | 27 | 29 | 29 | 30 | 32 | 34 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 10 | SE 10 | SE 9 | SE 9 | S 4 |
35 | 35 | 35 | 42 | 40 | 39 | 37 | 50 | 50 | 35 | 35 | 35 | 24 | 33 | 31 | 23 | 23 | 23 | 23 | 13 | 3 | |
Swell 2 Height (m) Direction Period (s) | SE 16 | SE 16 | SE 15 | SE 15 | SE 14 | SE 14 | SE 14 | SSW 8 | SSW 8 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SE 12 | SSW 8 | SE 13 | SE 13 | SE 9 |
40 | 39 | 35 | 34 | 74 | 52 | 51 | 13 | 23 | 15 | 14 | 14 | 13 | 13 | 13 | 11 | 6 | 6 | 7 | 7 | 14 | |
Swell 3 Height (m) Direction Period (s) | S 7 | S 8 | S 8 | S 7 | S 8 | S 9 | SSW 8 | SE 14 | SE 13 | ESE 4 | SE 13 | SE 13 | ESE 13 | E 5 | SE 5 | SE 12 | E 14 | SE 12 | SW 7 | S 7 | SE 11 |
1 | 1 | 5 | 4 | 5 | 14 | 14 | 30 | 28 | 4 | 27 | 7 | 17 | 2 | 1 | 6 | 4 | 6 | 2 | 1 | 5 | |
Wind waves Height (m) Direction Period (s) | — | SSE 4 | ESE 4 | — | — | E 5 | E 3 | E 5 | ESE 4 | — | — | — | — | — | — | — | S 3 | SW 3 | S 4 | S 4 | SSW 4 |
— | 1 | 3 | — | — | 2 | 1 | 7 | 2 | — | — | — | — | — | — | — | 5 | 2 | 1 | 2 | 5 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 50 | 58 | 73 | 53 | 68 | 0 | 38 | 0 | 58 | 50 | 50 | 73 | 110 | 451 | 89 | 73 | 114 | 114 | 114 | 497 | 249 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










