
Surf Forecasts:
Sakawa River surf forecast from 26 Jul 2026:
- Best quality surf: Sunday 26 Jul, 6PM (local time) - 1.5ft (0.4m), 14s period, SE swell with glassy winds.
- Most powerful swell: Sunday 2 Aug, 9AM (local time) - 2.5ft (0.7m), 14s period, ESE swell with 178 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 6PM (local time) - 1.5ft (0.4m), 14s 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 6PM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.4m and 11s. 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 0.7m 14s and forecast to arrive on Sunday (Aug 02) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Jul 28) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 26th Jul) | 1.5ft (0.4m) 14s |
| Best Surf | 6PM (Sun 26th Jul) | 1.5ft (0.4m) 14s |
| Most Powerful | 9AM (Sun 2nd Aug) | 2.5ft (0.7m) 14s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – the next couple of weeks are a bit of a mixed bag for the Sakawa River. The river mouth isn’t flashing any fireworks early on, but there’s some serious size lurking out there in the second week for those who know what they’re doing. The tide and wind windows will be everything.
The first few days are flat and forgettable. Sunday the 26th of July through to Tuesday the 29th serve up tiny 1ft to 2ft pulses from the SE with weak energy (80-102). Winds are mostly cross-onshore, apart from Tuesday morning and Wednesday morning when it goes glassy. That glassy spell on Tuesday the 28th morning might give you a clean little 2ft wave, but it’s ordinary at best. The water temp is sitting at 81°, pretty normal for this time of year.
We slog through a long gap from Thursday the 30th right through to Saturday the 1st of August with nothing worth paddling for – tiny swell, poor conditions, and energy dribbling down to 30. Then on Sunday the 2nd of August, we get a slight bump to 2ft from the ESE with a long 14-second period. The combined energy jumps to 186, but it’s cross-shore wind and still not clean. Not your day.
Now, Monday the 3rd of August morning is where things start to get interesting. The swell pumps up to 5ft from the ESE, 15-second period, and the energy hits 881. It’s marginal, but there’s a pulse. By the afternoon, it’s 5ft and the wind goes offshore, light from the SSE. That’s a standout moment – the first real offshore wind we’ve seen, and the river mouth could offer some clean lines. The swell is 5ft, coming from the ESE, and with that long period groundswell, it’s best at the river mouth where the current can shape it up. It’s not for beginners, but intermediates should be able to find a few. Crowds are possible here – it’s a fairly consistent spot that can get a few people on it.
Tuesday the 4th of August sees the swell climb to 7ft from the ESE, 16-second period, energy at 1987. Winds are cross from the NE, a bit messy. This is big, expert-level territory by Wednesday the 5th of August morning, when we hit 8ft from the ESE with a cross-offshore breeze from the NNE. That’s clean, powerful, and the energy is 3444 – a proper session for the brave. The period is 16 seconds, so it’s a long, grinding groundswell that will love the river mouth.
By Thursday the 6th of August, the swell explodes. 13ft from the SE, 17-second period, energy at 8812. The wind is light and cross-onshore, but the forecast notes the swell is too big for this break. That’s a hard pass – only absolute experts with a death wish, and even then, it’s likely closing out or washing over the bank. Friday the 7th and Saturday the 8th are even bigger, peaking at 18ft on Saturday morning with glassy conditions (energy 17987). It’s a monster, but it’s out of control for paddle surfing at the river. If you’ve got a kite, the setup looks more interesting, but for a surfboard, it’s a no-go.
Sunday the 9th of August drops back to 8ft from the S, 11-second period, energy 2816. Winds are light cross-onshore – still big, but maybe manageable for the experienced. Monday the 10th of August finishes with 6ft from the ESE, 15-second period, energy 1524, but the wind is cross-onshore and choppy.
Best on offer? Monday the 3rd of August afternoon – 5ft ESE swell, offshore wind, clean conditions at the river mouth. That’s your window for a proper session. Wednesday the 5th of August morning is the standout for size and cleanliness – 8ft, cross-offshore wind, pure power – but it’s only for experts. Everything else is either too small, too messy, or too big.
Stay safe out there.
Rusty
Short Range ForecastHeavy rain (total 32mm), heaviest during Sun night. Warm (max 29°C on Sun afternoon, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Warm (max 31°C on Fri morning, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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 15 | SE 11 | SE 14 | SE 14 | SE 14 | SE 10 | SE 10 | SE 10 | SW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 6 | S 6 | SSW 7 | SE 9 | ESE 15 | SE 14 |
Wave Graph | |||||||||||||||||||||
42 | 40 | 52 | 51 | 36 | 36 | 49 | 49 | 72 | 34 | 34 | 23 | 23 | 23 | 23 | 21 | 21 | 15 | 14 | 21 | 47 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | on | glassy | cross-on | cross-off | glassy | cross-on | glassy | cross-on | cross-on | cross-off | glassy | cross-on | glassy | cross-on | cross-on | cross |
High Tide | 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 | 5:38AM1.47m | 6:56PM1.46m | ||||||||
Low Tide | 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 | 12:19PM0.20m | 00:38AM0.68m | ||||||||
4:47 | — | — | 4:47 | — | — | 4:48 | — | — | 4:48 | — | — | 4:50 | — | — | 4:50 | — | — | 4:50 | — | — | |
— | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | |
mm | — | 7 | 9 | 2 | 3 | 5 | 1 | 4 | 1 | 1 | — | 1 | — | — | — | — | 1 | 1 | — | 3 | 6 |
Temp °C | 28 | 29 | 26 | 27 | 28 | 25 | 26 | 26 | 25 | 27 | 28 | 25 | 29 | 28 | 27 | 31 | 31 | 28 | 29 | 29 | 26 |
Feels °C | 31 | 34 | 29 | 30 | 31 | 29 | 30 | 30 | 29 | 30 | 31 | 30 | 31 | 30 | 31 | 35 | 35 | 33 | 34 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SE 10 | SE 10 | SE 10 | S 6 | S 6 | SSW 7 | SSW 6 | SSW 6 | SE 14 |
42 | 40 | 39 | 37 | 36 | 36 | 49 | 49 | 27 | 15 | 15 | 17 | 23 | 23 | 23 | 21 | 21 | 15 | 14 | 13 | 47 | |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 14 | SE 14 | SE 14 | SSW 8 | SSW 8 | SSW 9 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 8 | SE 12 | SSW 7 | SE 9 | SE 9 | ESE 9 | SE 9 | SE 9 | S 6 |
34 | 33 | 52 | 51 | 22 | 23 | 25 | 24 | 35 | 34 | 34 | 23 | 11 | 6 | 5 | 14 | 14 | 8 | 12 | 12 | 6 | |
Swell 3 Height (m) Direction Period (s) | S 7 | S 8 | SSW 9 | SSW 8 | SE 14 | ESE 3 | SE 13 | SE 13 | SE 13 | SE 13 | SSW 8 | E 15 | SE 12 | E 14 | SE 12 | SE 13 | SE 13 | SE 11 | SE 10 | ESE 15 | SE 9 |
4 | 5 | 15 | 14 | 30 | 2 | 28 | 27 | 7 | 7 | 12 | 4 | 6 | 4 | 6 | 7 | 7 | 4 | 4 | 21 | 12 | |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 2 | SSE 6 | ESE 6 | — | — | SW 8 | — | — | — | — | SSW 7 | SW 3 | — | — | — | — | — | — |
— | — | — | 1 | 10 | 6 | — | — | 72 | — | — | — | — | 18 | 7 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 53 | 53 | 0 | 66 | 58 | 58 | 0 | 53 | 0 | 50 | 53 | 73 | 90 | 114 | 114 | 50 | 68 | 451 | 111 | 477 | 73 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.










