
Surf Forecasts:
Sakawa River surf forecast from 5 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 12AM (local time) - 5ft (1.5m), 16s period, SE swell with glassy winds.
- Most powerful swell: Friday 10 Jul, 12PM (local time) - 8ft (2.5m), 17s period, S swell with 3,632 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 12PM (local time) - 2ft (0.6m), 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 Monday (Jul 06) at 12PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.9m and 7s. Another secondary swell of 1.1m and 7s 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 17s and forecast to arrive on Friday (Jul 10) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 6th Jul) | 2ft (0.6m) 14s |
| Best Surf | 12AM (Wed 8th Jul) | 5ft (1.5m) 16s |
| Most Powerful | 12PM (Fri 10th Jul) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Sakawa River over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, folks, Rusty here. Let’s take a look at what’s cooking for the Sakawa River. This is a river break, fairly exposed to the southeast, and it really needs the right combo to get good. There’s a quiet start, but things will build.
The first real window opens Monday, July 6. It’s not big – a 2ft swell from the southeast with a long 14-second period – but the conditions are the key. Monday morning has a light cross breeze, but the standout is Monday afternoon: that swell bumps to 3ft, same long period, and the wind goes glassy. That’s butter-smooth water, perfect for a longboard glide.
Tuesday, July 7, is the best of the whole outlook. The morning brings a 3ft SSE swell with a very long 15-second period and a clean, offshore breeze from the north-northeast. The energy is building. Then Tuesday afternoon, the wind goes glassy again with a 4ft SSE swell and 15-second period. This will be the cleanest, fun-est surf of the week. That offshore wind on Tuesday morning is a rare treat for this spot.
Now, from Wednesday, July 8, through the weekend, it gets bigger but uglier. The swell builds to 5ft on Wednesday, hits 7ft on Thursday, and peaks at 8ft on Friday, July 10, from the south with very long 17-second periods. But the wind turns cross-onshore and stays there. The energy is massive, but that chop and onshore texture will turn it into a mess. At 8ft, this is for experts only. For a river break with that much power and a cross-onshore breeze, I’d say this looks more interesting for kite surfing than paddle surfing. The swell is also coming from the south-southwest, which is not the ideal southeast direction for the river.
By Sunday, July 12, it is fading and sloppy. Swell drops to 5ft and then 3ft with onshore winds. Not worth the drive. Then we hit a long, flat stretch from Monday, July 13, through Friday, July 17. Swell is tiny, under 3ft, with mostly poor conditions. A little light on Thursday morning, July 16, with a 3ft south swell and glassy wind, but the period is short at 9 seconds, making for weak, crumbly waves.
Saturday, July 18, shows a pulse of 5ft from the east-southeast, but the period remains short and the onshore wind ruins it. Another dry spell until Sunday, July 19, with a 3ft easterly swell and a clean cross-offshore wind from the north-northeast at 12 mph. Not big, but clean enough to check if you’re desperate.
The only true standout in this 16-day window is Tuesday, July 7. The morning session with a clean 3ft SSE swell and offshore wind, and the afternoon with glassy 4ft waves. That is the best combo of size, period, and wind you’ll get.
The water temp is about average for this time of year, nothing wild, so your usual spring suit will do for Tuesday.
So, summary: a slow start, a beautiful clean window on Tuesday the 7th, then it gets big and lumpy before a long flat spell. The river needs that southeast swell and light or offshore winds, and Tuesday is the day.
Keep your eye on it, but don’t hold your breath for the rest.
- Rusty
Short Range ForecastHeavy rain (total 28mm), heaviest during Sun night. Warm (max 25°C on Tue afternoon, min 21°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Fri morning, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sun 12 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SE 7 | SE 14 | SE 14 | SE 12 | SSE 15 | SSE 15 | SE 16 | SE 14 | SSE 16 | SSE 14 | SSE 16 | SSE 14 | S 16 | S 17 | S 16 | SSW 16 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 13 |
Wave Graph | |||||||||||||||||||||
86 | 169 | 238 | 221 | 367 | 711 | 1060 | 1031 | 1896 | 1002 | 1818 | 1419 | 2310 | 3593 | 3384 | 2979 | 2981 | 1913 | 1163 | 691 | 378 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | glassy | cross | cross-off | glassy | glassy | cross-on | cross-on | glassy | on | cross-on | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-off | cross-on | cross-on |
High Tide | 7:54AM1.24m | 9:08PM1.40m | 8:58AM1.15m | 9:41PM1.39m | 10:25AM1.08m | 10:19PM1.38m | 12:24PM1.08m | 11:05PM1.37m | 2:22PM1.17m | 00:00AM1.38m | 3:42PM1.29m | 1:04AM1.41m | 4:37PM1.39m | ||||||||
Low Tide | 2:30AM0.77m | 2:20PM0.45m | 3:25AM0.70m | 2:59PM0.60m | 4:28AM0.62m | 3:45PM0.76m | 5:38AM0.51m | 4:48PM0.92m | 6:49AM0.38m | 6:20PM1.05m | 7:55AM0.23m | 7:58PM1.11m | 8:54AM0.09m | ||||||||
— | 4:33 | — | — | 4:33 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | |
7:00 | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | |
mm | 15 | 2 | 1 | 9 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 22 | 22 | 24 | 25 | 23 | 24 | 25 | 23 | 25 | 25 | 23 | 27 | 26 | 24 | 25 | 25 | 24 | 26 | 25 |
Feels °C | 26 | 25 | 25 | 24 | 25 | 27 | 26 | 26 | 27 | 25 | 27 | 27 | 26 | 29 | 27 | 27 | 27 | 26 | 26 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SSE 15 | SSE 15 | SE 16 | SE 14 | SSE 16 | SSE 14 | SSE 16 | SSE 14 | S 16 | S 17 | S 16 | SSW 16 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 13 |
86 | 91 | 77 | 69 | 367 | 711 | 1060 | 1031 | 1896 | 1002 | 1818 | 1419 | 2310 | 3593 | 3384 | 2979 | 2981 | 1913 | 1163 | 691 | 378 | |
Swell 2 Height (m) Direction Period (s) | SE 15 | SE 14 | SE 14 | SE 12 | SE 12 | SSE 20 | SSE 18 | SSE 18 | ESE 8 | S 17 | S 19 | S 17 | SSW 19 | ESE 7 | ESE 7 | E 10 | — | — | SW 18 | SE 10 | SSW 13 |
34 | 169 | 238 | 221 | 161 | 80 | 356 | 951 | 61 | 930 | 593 | 998 | 657 | 21 | 46 | 8 | — | — | 155 | 35 | 58 | |
Swell 3 Height (m) Direction Period (s) | SSW 6 | S 8 | SW 7 | SE 18 | ESE 7 | — | SSE 16 | ESE 8 | S 21 | ESE 8 | ESE 8 | — | ESE 8 | — | E 10 | — | — | — | SE 10 | — | SE 10 |
4 | 1 | 2 | 78 | 54 | — | 229 | 104 | 311 | 58 | 68 | — | 23 | — | 30 | — | — | — | 35 | — | 28 | |
Wind waves Height (m) Direction Period (s) | — | ESE 7 | — | ESE 7 | E 7 | ESE 7 | — | — | ESE 8 | — | — | — | — | — | — | — | — | — | — | — | S 3 |
— | 113 | — | 108 | 94 | 29 | — | — | 140 | — | — | — | — | — | — | — | — | — | — | — | 6 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 111 | 27 | 0 | 22 | 0 | 0 | 0 | 30 | 27 | 0 | 38 | 53 | 0 | 24 | 114 | 100 | 58 | 114 | 0 | 24 | 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.











