Surf Forecasts:
Sakawa River surf forecast from 14 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 9PM (local time) - 1.5ft (0.5m), 10s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 18 Jul, 3PM (local time) - 2.5ft (0.7m), 8s period, SE swell with 71 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 9PM (local time) - 1.5ft (0.5m), 10s 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 Tuesday (Jul 14) at 9PM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sakawa River in the next 16 days are 0.7m 8s and forecast to arrive on Saturday (Jul 18) at 3PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 14th Jul) | 1.5ft (0.5m) 10s |
| Best Surf | 9PM (Tue 14th Jul) | 1.5ft (0.5m) 10s |
| Most Powerful | 3PM (Sat 18th Jul) | 2.5ft (0.7m) 8s |
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 first couple of weeks of this forecast window are a write-off. We’re looking at a solid 12-day gap with no surf worth paddling for. From Tuesday the 14th of July right through to the end of the week, it’s flat, weak, and messy. Tiny waves, poor conditions, and barely any energy. The river mouth is just not doing anything. You’ll be sitting on your board looking at ripples. It’s a long stretch of nothing, but that’s the Sakawa River for you – it often goes quiet like this.
Then, hold onto your board, because around the 26th of July, things start to stir. By Sunday the 26th morning, we get a pulse of ESE swell, 3ft at 14 seconds, and the combined energy finally climbs to 284 – weak, but it’s a sign of life. The wind is still light cross-onshore, so it’s not clean, but the tide might be your friend. That’s still a marginal call.
The real standout arrives on the 28th of July, Tuesday morning. That’s the one to circle. Glassy conditions, a light glassy wind from the SSE, and a solid 5ft ESE swell. The period is a very long 15 seconds, so this is proper groundswell rolling in. The combined energy jumps to 1203 – moderate energy, finally. The wave comment says “expect very good surf conditions,” and that’s what we’ve been waiting for. The Sakawa River is a river break, so that long-period swell should peel nicely along the banks. Keep in mind, with the swell just over 5ft, it’s getting a bit too big for beginners, but intermediates will love it. The water temp is sitting at 76°, which is a bit colder than normal for this time of year – about 2° cooler, so you might want a spring suit.
The 29th of July, Wednesday, pushes up to 10ft from the SE with a 17-18 second period. That’s big, powerful energy – 5145 on the combined energy scale. That’s only for the experts. The wind is light cross-onshore in the morning, turning cross-shore in the afternoon, so it’ll be a bit lumpy, but the size and period are there. If you’re a confident charger, that could be your session, but it’s not for the faint-hearted.
So, the best on offer is Tuesday the 28th of July morning – glassy, 5ft, groundswell, and clean. That’s the one. The Monday the 27th is marginal but building, and the 29th is big and raw. Everything before that is a flat spell.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Thu night. Warm (max 31°C on Thu morning, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Fri afternoon. Warm (max 29°C on Fri morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 11 | SSW 10 | SSW 10 | SE 10 | SSW 9 | SSW 9 | SSW 5 | S 5 | SE 10 | SE 10 | SE 10 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 10 | SSE 9 | SE 7 | ESE 11 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 90 | 58 | 55 | 33 | 28 | 16 | 28 | 13 | 17 | 16 | 16 | 35 | 46 | 71 | 54 | 29 | 24 | 43 | 14 | 24 | 16 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | cross-off | cross-on | cross-on | glassy | on | on | glassy | on | cross-on | cross-off | glassy | cross-on | glassy |
High Tide | 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 | 7:26AM1.35m | 8:23PM1.41m | 8:21AM1.23m | 8:47PM1.39m | ||||||||
Low Tide | 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 | 1:50PM0.42m | 2:33AM0.63m | 2:19PM0.59m | ||||||||
 | |  | | |  |  |  |  |  | |  | | | | | | | | | | |
 | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:41 | — | — | 4:41 | — | — | 4:41 | — | — |
 | — | 6:59 | — | — | 6:58 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:55 | — |
mm | — | — | — | — | — | — | — | 2 | 4 | 1 | 3 | 1 | 1 | 4 | 3 | — | — | — | — | 1 | 3 |
Temp °C | 29 | 29 | 27 | 30 | 30 | 27 | 31 | 30 | 28 | 29 | 29 | 28 | 28 | 27 | 26 | 28 | 28 | 27 | 30 | 30 | 27 |
Feels °C | 32 | 32 | 30 | 34 | 33 | 31 | 35 | 34 | 33 | 33 | 34 | 34 | 32 | 31 | 31 | 32 | 32 | 32 | 34 | 34 | 32 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | S 5 | ESE 8 | S 4 | ESE 9 | ESE 9 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 7 | SSE 9 | SE 7 | SE 8 | SE 8 |
| kJ | 90 | 58 | 55 | 33 | 28 | 16 | 14 | 13 | 10 | 16 | 16 | 35 | 46 | 71 | 54 | 29 | 19 | 43 | 14 | 16 | 16 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 10 | SE 10 | SE 10 | ESE 8 | ESE 9 | SSW 8 | ESE 9 | SSE 4 | SE 10 | SE 9 | SE 5 | E 8 | E 9 | SE 10 | SE 10 | E 9 | ESE 11 | ESE 11 | ESE 11 |
| kJ | 22 | 35 | 27 | 25 | 14 | 14 | 15 | 7 | 15 | 3 | 14 | 14 | 6 | 13 | 7 | 16 | 24 | 6 | 13 | 24 | 12 |
Swell 3 Height (m) Direction Period (s) | SE 9 | — | S 15 | S 14 | ESE 8 | SSE 9 | SSW 8 | SSE 9 | SE 10 | SE 10 | SSE 4 | SSW 8 | E 8 | S 9 | S 8 | E 9 | S 8 | S 8 | SSE 9 | S 8 | ESE 3 |
| kJ | 3 | — | 4 | 4 | 7 | 8 | 7 | 8 | 16 | 14 | 1 | 6 | 12 | 2 | 6 | 7 | 5 | 5 | 8 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | SSW 3 | — | — | SSW 4 | SSW 5 | S 5 | SSW 5 | — | — | S 3 | — | S 3 | SW 3 | — | SSW 3 | SSW 3 | — | SE 3 | E 4 |
| kJ | — | — | 2 | — | — | 4 | 28 | 13 | 17 | — | — | 1 | — | 1 | 2 | — | 3 | 1 | — | 2 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 53 | 114 | 0 | 53 | 114 | 68 | 31 | 68 | 67 | 50 | 53 | 58 | 58 | 497 | 67 | 58 | 96 | 68 | 108 | 115 | 114 |
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.
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