
Surf Forecasts:
Sakawa River surf forecast from 11 Jul 2026:
- Best quality surf: Saturday 18 Jul, 6AM (local time) - 6.5ft (2.0m), 13s period, SE swell with cross-offshore winds.
- Most powerful swell: Saturday 18 Jul, 9AM (local time) - 8ft (2.5m), 13s period, SE swell with 2,121 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 6PM (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 6PM. 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 0.4m 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 2.5m 13s and forecast to arrive on Saturday (Jul 18) 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 0.2m 8s period and expected on Saturday (Jul 18) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 12th Jul) | 4.5ft (1.3m) 14s |
| Best Surf | 6AM (Sat 18th Jul) | 6.5ft (2.0m) 13s |
| Most Powerful | 9AM (Sat 18th Jul) | 8ft (2.5m) 13s |
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 shaping up for the Sakawa River over the next couple of weeks.
Right off the bat, I gotta be honest with you – the first week is a bit of a struggle. The surf is small and the wind is just not playing ball. We’ve got a bit of a wait on our hands before anything really gets going. The standout window is a solid week and a half away, on Saturday the 18th of July, but hold on, because there’s a glimmer a few days earlier too.
Let’s start with the early part. Sunday the 12th of July through to Friday the 17th is pretty grim. The swell is tiny, mostly under 3 ft, and the wind is constantly cross-onshore, putting a nasty little ripple on the surface. The water temp is sitting at 75°, which is a bit colder than normal for this time of year, so you might want a spring suit. The combined wave energy is weak, barely cracking 100 (114) on the Sunday morning, and it just drops off from there. Honestly, it’s not worth paddling out for.
Now, Monday the 13th of July morning is a tease. The swell drops to 3 ft from the SSW, but the wind goes glassy – dead calm. That’s a rare treat, and the river mouth will look clean. But the problem is the wave height is just too small to get excited about, and the energy is only 289. It’s surfable, but you’ll be fighting for scraps. If you’re desperate for a paddle on a longboard, you might get a few, but it’s not a standout.
Then we hit a proper dry spell. From Tuesday the 14th through to Friday the 17th, the swell completely flatlines. Heights are down to 1 ft to 2 ft, energy is below 100, and the wind is either cross-onshore or onshore. It’s basically a lake out there. This is a real gap of nothing.
But hold on to your board, because Saturday the 18th of July is where it gets interesting. The swell jumps up to 8 ft from the SE early on Saturday morning, with a period of 13 seconds. That’s a solid groundswell, and the energy is massive – 2132! The wind is cross-shore in the morning, which is a bit messy, but by Saturday afternoon, the wind swings to a light cross-offshore from the NNE at 6 mph, and the surf cleans right up. The swell drops to a still-meaty 8 ft from the SE, and the energy is 1321. The river mouth will be handling that size, so this is for intermediate to advanced surfers only. This is the best on offer by a long shot. The wind is clean, the swell is big, and it’s from the SE, which is the optimum direction for this spot. The crowd factor is listed as “sometimes,” so be prepared for a few others to have the same idea.
After that peak, Sunday the 19th of July sees the swell drop back to 5 ft from the SE, but the wind goes back to a light cross-onshore, so it’s not as clean. The energy drops to 325. It’s still surfable, but not a patch on the day before.
The rest of the second week, from Monday the 20th to Monday the 27th of July, is a mixed bag of small to moderate swell, but the wind is persistently cross-onshore or onshore, keeping the waves lumpy. The swell is mostly from the SE or SSE, with periods bouncing between 9 and 13 seconds. There’s no other real standout. The energy levels are moderate at best, staying under 1000. The river mouth will be inconsistent and certainly not worth the drive for most.
So, in short: endure the first week of nothing, then get your eyes on Saturday the 18th of July. That afternoon session with the 8 ft SE swell and clean cross-offshore wind is the one to circle. The rest of the time, you’re better off fixing your dings.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 29°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Wed morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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) | SSW 16 | SSW 15 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SE 10 | SSW 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 10 | SE 9 | SE 16 | SE 13 | SE 11 | SE 10 |
Wave Graph | |||||||||||||||||||||
1107 | 736 | 482 | 267 | 203 | 126 | 90 | 58 | 55 | 28 | 28 | 17 | 26 | 26 | 26 | 30 | 28 | 302 | 2121 | 1317 | 602 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-off | cross | cross-off | 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 | ||||||||
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 | — | — | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:41 | — | — | |
— | 6:59 | — | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | |
mm | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 2 | 3 |
Temp °C | 26 | 27 | 27 | 28 | 29 | 27 | 28 | 28 | 25 | 29 | 29 | 26 | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 30 | 31 | 31 | 32 | 32 | 31 | 31 | 32 | 29 | 32 | 32 | 30 | 32 | 30 | 30 | 31 | 32 | 31 | 30 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | SE 16 | SE 13 | SE 11 | SE 10 |
1107 | 736 | 482 | 267 | 203 | 126 | 90 | 58 | 55 | 28 | 28 | 17 | 26 | 26 | 26 | 30 | 28 | 302 | 2121 | 1317 | 602 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 12 | SE 12 | SE 12 | SE 10 | SE 10 | SE 11 | SSW 9 | SSW 8 | SSE 10 | SE 10 | SE 10 | ESE 9 | SE 8 | SW 8 | SW 10 | SW 10 |
28 | 23 | 15 | 16 | 16 | 22 | 22 | 35 | 27 | 25 | 18 | 16 | 7 | 9 | 15 | 24 | 16 | 69 | 11 | 4 | 4 | |
Swell 3 Height (m) Direction Period (s) | E 9 | SE 13 | E 9 | E 9 | SE 13 | E 9 | SE 9 | — | S 15 | S 14 | ESE 9 | SSE 9 | SSE 9 | SE 11 | SSW 8 | SSW 8 | SW 8 | ESE 8 | — | — | — |
6 | 7 | 6 | 6 | 6 | 2 | 3 | — | 4 | 4 | 17 | 8 | 8 | 5 | 7 | 6 | 2 | 14 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | SSW 4 | SSW 4 | — | — | — | — | — | SW 2 | — | S 3 | S 3 | SSW 3 | SSW 4 | SSW 3 | — | SE 2 | — | — | — | — |
— | 5 | 16 | — | — | — | — | — | 1 | — | 3 | 3 | 3 | 13 | 4 | — | 2 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 108 | 0 | 0 | 0 | 0 | 53 | 68 | 0 | 68 | 68 | 68 | 68 | 114 | 68 | 53 | 58 | 0 | 41 | 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.










