Sakawa River Surf Break

Lat Long: 35.24° N 139.15° E

Sakawa River Surf Forecast and Surf Report

Issued: 2 am 25 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sakawa River sea temperature is
27.3° C
1.0° 

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 24 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 3AM (local time) - 1ft (0.3m), 15s 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★+): Sunday 26 Jul, 3AM (local time) - 1ft (0.3m), 15s 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 Sunday (Jul 26) at 3AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.3m and 15s. Another secondary swell of 0.5m 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 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 0.2m 2s period and expected on Friday (Jul 31) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 26th Jul)1ft (0.3m) 15s
Best Surf 3AM (Sun 26th Jul)1ft (0.3m) 15s
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

Alright, Rusty here. Let’s have a look at what’s coming up.

Right, straight up I gotta be honest with you – for a good long while, this forecast is pretty grim for paddle surfing. We’re looking at a run of days with tiny, weak swell and hardly any push. For the first couple of days, you’re looking at waves barely 1.0 ft to 1 ft with very weak combined energy (mostly under 100). The wind is mostly cross or cross-onshore, so the surface is going to be a bit messy. Saturday the 25th and Sunday the 26th? Not worth your time. That carries right on through the end of July and into the start of August. The water temp is sitting about 81°F with a 2°F anomaly, so it’s a touch warmer than average for the time of year, but that’s about the only good thing going on.

Now, there’s a bit of a tease. On Monday the 27th of July, in the afternoon, the wind goes glassy at Sakawa River. The swell is still tiny – only 2 ft from the SE with a short 10-second period, and the combined energy is just 100, so it’s weak. But for half a day, if you’re desperate and the glassy conditions are right, you might find a few very ordinary lines. I wouldn’t call it a standout, just a brief window.

The real action, if you’re an expert, comes later. We’ve got a big pulse of swell arriving around the 3rd of August. The swell builds from 5 ft on Monday morning, pushing up to 5 ft by the afternoon, and it keeps going. By the 5th, Wednesday morning, we’re seeing 7 ft from the ESE with a very long 17-second period, and combined energy is surging past 2800 – that’s serious power. The wind is cross-offshore from the NNE at 16 mph, so the face should be clean. But let’s be clear: at 7 ft, it’s getting into expert territory, and with that long period (over 15 seconds), the wave will be bowling and is best suited to the river mouth setup here at Sakawa River. It’s going to be big and walled up.

Then, the absolute standout if you’re a hardened charger is Friday the 7th of August. The morning shows a serious 12 ft from the ESE at an 18-second period, with a massive combined energy of 7444. The wind is cross-offshore from the NNW at 12 mph, so it’s clean. But I have to warn you – the forecast notes specifically say this is too big for this break. This is for experts only, and even then, it’s going to be a heavy, powerful river mouth wave. The morning of Saturday the 8th also looks massive – 12 ft again, but glassy from the WSW. Again, that’s well into the “too big for this break” territory. The rest of the second week drops back to more manageable but still marginal 5 ft to 6 ft swell, but with onshore or cross-onshore winds, so not ideal.

So to sum it up: the first week is a write-off for all but the most patient, with that one glassy moment on Monday the 27th being a small highlight. The second week offers a big, powerful, expert-only window, with the 7th of August morning being the pick of the bunch if you’ve got the skills and the nerve. Tackle it if you’re ready, but don’t say I didn’t warn you.

Rusty

Short Range Forecast

Heavy rain (total 28mm), heaviest during Sun night. Warm (max 30°C on Sat morning, min 24°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Tue afternoon. Warm (max 27°C on Wed morning, min 23°C on Tue night). Wind will be generally light.

Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
1
0
1
0
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)
0.3
SE
16
0.3
SE
16
0.3
SE
15
0.3
SE
15
0.4
SE
14
0.4
SE
14
0.4
SE
14
0.5
SE
10
0.5
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.4
SE
9
0.3
SE
9
0.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
40
39
35
42
74
52
51
50
50
35
35
35
24
33
31
23
23
23
23
13
14
Wind (km/h)
5
E
10
S
5
ENE
10
S
10
S
10
NNE
10
NE
5
S
5
ENE
5
ESE
0
ENE
10
NE
10
NE
5
SE
10
NE
5
SE
15
S
10
SW
10
SSW
15
S
10
WSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross
glassy
cross-on
glassy
glassy
cross
cross
on
cross
glassy
cross-on
cross-off
cross
cross-on
cross-off
High Tide
4:24PM1.19m
00:48AM1.28m
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
Low Tide
7:57PM1.13m
8:56AM0.32m
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
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:46
4:47
4:47
4:48
4:48
4:50
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:51
6:50
6:50
6:49
6:47
 mm
4
6
2
10
3
3
1
7
6
1
1
Temp °C
30
30
26
27
27
26
27
27
25
25
24
24
27
27
25
27
27
26
29
30
27
Feels °C
35
34
31
30
31
32
29
31
30
29
29
29
29
30
27
29
29
30
32
34
31
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Sakawa River:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sakawa River surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest