Surf Forecasts:
Sakawa River surf forecast from 19 Jul 2026:
- Best quality surf: Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s 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★+): Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s 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 12AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.3m and 8s 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 0.5m 3s period and expected on Tuesday (Jul 21) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 24th Jul) | 1ft (0.3m) 18s |
| Best Surf | 12AM (Fri 24th Jul) | 1ft (0.3m) 18s |
| 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
G’day, Rusty here, looking at the stretch ahead for the Sakawa River. It’s a quiet start, real quiet. We’ve got a solid gap of just over a week with no real surf to get excited about. The first week and a bit is mostly tiny, weak bumps and poor conditions, so don’t rush out just yet. The wait is worth it though, because things start to build into the last week of July and the first days of August.
The water temperature is sitting at 78°, which is bang on average for this time of year, so no surprises there.
The first real standout window starts to shape up on the morning of Wednesday, 29 July at Sakawa River. The swell is a clean 4ft coming from the SSW, with a period of 14 seconds, giving it proper groundswell energy (combined energy of 686). That’s moderate wave energy. The wind is glassy, making for a really clean surface. This is a river break, and with a long period swell like that, it’ll hold shape well. This is the pick of the whole forecast. The morning of the 29th is the one to circle.
Now, the morning of Wednesday, 30 July follows with a similar 5ft from the SW, but the period drops to 7 seconds, so it’s a weaker, more jumbled affair. The wind is cross, so not as clean. The energy is still moderate (400). It’s okay, but not a standout.
Then, rolling into Saturday, 3 August, there’s a big spike. Morning brings a 8ft swell from the ESE, with a very long period of 18 seconds. That’s powerful, very powerful (combined energy of 3819), and it’s the biggest swell of the forecast. This is expert territory at that size. The wind is light cross-on, but the period is so long that at a river break, it might wall up a bit. Still, for the experienced crew, this is a serious session. Afternoon holds the same size and energy, just a bit more onshore.
Overall, the best on offer is the glassy 4ft SSW groundswell on the morning of 29 July. That’s the one. The 3 August is a solid, heavy option for experts only. Don’t bother before the 29th. It’s been a dry spell, but it’s about to turn.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 31°C on Tue morning, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 31mm), heaviest during Fri night. Warm (max 31°C on Thu morning, min 24°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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 8 | SE 7 | E 9 | E 9 | SE 8 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 11 | SSW 6 | SE 10 | SE 10 | SE 18 | SE 18 | SE 17 | SE 16 | SE 16 | SE 16 | SE 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 21 | 19 | 14 | 13 | 11 | 24 | 11 | 11 | 11 | 11 | 14 | 16 | 25 | 49 | 49 | 45 | 41 | 40 | 39 | 35 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-on | cross-on | cross-off | glassy | cross-on | cross-off | on | cross-on | off | on | cross | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:23PM1.41m | 8:21AM1.23m | 8:47PM1.39m | 9:26AM1.10m | 9:12PM1.37m | 10:59AM1.02m | 9:42PM1.35m | 1:52PM1.02m | 10:23PM1.31m | 4:25PM1.11m | 11:26PM1.28m | 4:24PM1.19m | 00:48AM1.28m | |||||||
Low Tide | 2:33AM0.63m | 2:19PM0.59m | 3:26AM0.59m | 2:44PM0.76m | 4:27AM0.55m | 3:05PM0.90m | 5:40AM0.52m | 3:15PM1.02m | 6:57AM0.47m | 5:07PM1.11m | 8:03AM0.40m | 7:57PM1.13m | ||||||||
 |  | |  | | | | | | | | | |  | | | |  | | | |
 | — | — | 4:41 | — | — | 4:43 | — | — | 4:43 | — | — | 4:43 | — | — | 4:45 | — | — | 4:46 | — | — |
 | 6:55 | — | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — |
mm | — | — | — | 1 | — | — | 1 | — | 1 | 1 | — | — | 4 | 6 | 1 | 4 | 15 | — | 1 | 4 |
Temp °C | 29 | 27 | 30 | 30 | 28 | 31 | 31 | 28 | 31 | 30 | 28 | 31 | 31 | 28 | 28 | 28 | 25 | 25 | 26 | 25 |
Feels °C | 32 | 31 | 34 | 34 | 33 | 36 | 36 | 32 | 36 | 34 | 33 | 36 | 35 | 34 | 32 | 32 | 30 | 29 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 7 | SE 7 | SE 7 | SE 8 | ESE 11 | ESE 11 | SSE 8 | SSW 4 | ESE 11 | SSW 6 | SSW 6 | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 |
| kJ | 21 | 19 | 8 | 8 | 11 | 24 | 11 | 6 | 4 | 11 | 14 | 7 | 25 | 25 | 23 | 18 | 40 | 35 | 35 | 35 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | ESE 11 | SSW 4 | SSE 8 | ESE 11 | ESE 10 | SE 7 | SSE 11 | SE 10 | E 10 | SSW 8 | SSW 6 | SE 17 | ESE 3 | SE 16 | SE 16 | SE 15 |
| kJ | 15 | 15 | 14 | 13 | 11 | 1 | 6 | 11 | 11 | 2 | 11 | 16 | 7 | 12 | 3 | 45 | 2 | 40 | 39 | 35 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | ESE 11 | ESE 11 | E 8 | SSE 8 | E 11 | E 10 | SSE 8 | E 10 | SE 11 | E 10 | SE 19 | SE 18 | SE 18 | SSE 9 | SE 16 | — | S 8 | — |
| kJ | 5 | 5 | 13 | 12 | 5 | 6 | 9 | 7 | 6 | 7 | 4 | 8 | 14 | 49 | 49 | 8 | 41 | — | 1 | — |
Wind waves Height (m) Direction Period (s) | S 3 | SW 3 | WSW 3 | SW 3 | SW 3 | SW 4 | SSW 3 | SW 3 | — | SSW 5 | — | — | SSW 6 | — | — | — | E 4 | — | SSE 3 | — |
| kJ | 5 | 1 | 1 | 5 | 5 | 7 | 3 | 7 | — | 5 | — | — | 7 | — | — | — | 9 | — | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 68 | 67 | 67 | 115 | 68 | 68 | 115 | 68 | 68 | 114 | 68 | 50 | 99 | 0 | 73 | 53 | 73 | 58 | 53 | 50 |
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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