Sakawa River Surf Break

Lat Long: 35.24° N 139.15° E

Sakawa River Surf Forecast and Surf Report

Issued: 2 pm 26 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sakawa River sea temperature is
27.6° C
1.2° 

Sakawa River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Sakawa River surf forecast from 26 Jul 2026:

  • Best quality surf: Monday 27 Jul, 12AM (local time) - 1.5ft (0.4m), 14s period, SE swell with cross-offshore winds.
  • Most powerful swell: Sunday 2 Aug, 9PM (local time) - 3ft (0.9m), 14s period, ESE swell with 303 kJ wave energy.
  • Next surfable swell (1★+): Monday 27 Jul, 12AM (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 Monday (Jul 27) at 12AM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.4m and 10s. 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 0.9m 14s and forecast to arrive on Sunday (Aug 02) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Friday (Jul 31) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 27th Jul)1.5ft (0.4m) 14s
Best Surf12AM (Mon 27th Jul)1.5ft (0.4m) 14s
Most Powerful 9PM (Sun 2nd Aug)3ft (0.9m) 14s

Table - best surf conditions forecast for Sakawa River over the next 16 days.


The Lowdown

Alright, let’s see what we’ve got. Honestly, the next week or so looks pretty bleak for Sakawa River. We’ve got a long stretch of tiny, weak, poorly directed swell and a lot of cross-onshore or glassy but flat conditions. The water’s a touch warmer than normal at 82°, so that’s nice for a paddle, but there’s just no push.

From Sunday the 26th through to about Saturday the 2nd of August, it’s all tiny stuff – 1.0 ft to 1 ft of SE swell, mostly short period, with combined energy readings barely climbing out of the double digits (79 to 212). You’d be scratching for anything rideable. Even the glassy mornings on the 28th and 1st don’t save it because there’s almost no wave to work with.

Things finally start to change on Monday the 3rd of August. That’s when we see a proper groundswell arrive. The swell bumps up to 4 ft from the ESE, period hits 15 seconds, and the combined energy jumps to 697. The catch? The wind is mostly cross-on or onshore, and the forecast calls it “marginal.” Still, for a river mouth setup, that long period (15 sec) groundswell can wrap in pretty nicely, so it’s worth a look if you’re desperate.

The real standout, though, and I mean the one to circle on your calendar, is Thursday the 6th of August into the weekend. The swell builds to 10 ft to 15 ft from the SE, with periods of 16 seconds and combined energy readings going through the roof – 5,155 to 10,023. That’s serious groundswell energy. The problem is it’s too big for this break for most surfers. The forecast even says the swell is predicted to be too big. Over 8 ft, this is strictly for experts. The wind on Friday morning the 7th is clean, cross-off from the NNE, which is about as good as it gets for Sakawa River – clean conditions on a big, powerful SE groundswell. For experienced paddlers only, that Friday morning (7th) and Saturday morning (8th) with glassy conditions and 23 ft swell are the best on offer, but you’d need to know what you’re doing. The long period (16 sec) will make it wall up nicely at the river mouth, but the power is immense.

After that, it drops back to more manageable but still chunky 10 ft to 6 ft on the 9th and 10th, with cleaner conditions on Monday the 10th morning showing 6 ft from the SSW and glassy wind – that could be the pick for anyone who missed the giant stuff.

So, bottom line: a long flat spell until the 3rd, then a big pulse of expert-level groundswell from the 6th to the 8th, with Friday the 7th morning as the true standout for the brave. The rest? Not much else worth suiting up for.

Rusty

Short Range Forecast

Heavy rain (total 41mm), heaviest during Tue afternoon. Warm (max 28°C on Sun afternoon, min 24°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Wed night. Warm (max 31°C on Sat morning, min 25°C on Wed night). Wind will be generally light.

Sun
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
11
0.4
SE
14
0.4
SE
14
0.3
SE
14
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.6
S
7
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.3
SE
10
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.4
SE
9
0.4
SE
12
Wave Graph
Metric surfscale
Energy kJ
40
52
51
36
36
35
35
35
33
34
23
23
23
14
14
14
13
12
19
39
Wind (km/h)
5
SE
5
N
10
ENE
5
S
5
NE
5
SE
5
SW
5
NW
5
ESE
10
S
10
NE
10
E
10
S
5
SW
5
S
10
S
10
W
5
SE
10
SSE
10
NE
Wind State
glassy
cross-off
cross-on
cross-on
cross
glassy
cross
glassy
on
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-off
glassy
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
thunderstorm
thunderstorm
clear
part cloud
rain showers
thunderstorm
thunderstorm
clear
clear
thunderstorm
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
rain showers
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:47
4:48
4:48
4:50
4:50
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:50
6:50
6:49
6:47
6:46
 mm
11
14
1
1
14
2
4
1
1
Temp °C
28
26
27
27
25
27
25
26
28
29
26
27
28
26
29
29
28
31
32
29
Feels °C
33
29
30
30
30
30
29
30
31
32
30
30
31
30
33
33
33
35
37
35
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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