Sakawa River Surf Break

Lat Long: 35.24° N 139.15° E

Sakawa River Surf Forecast and Surf Report

Issued: 8 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sakawa River sea temperature is
27.7°C
0.7° 

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 27 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 3AM (local time) - 3.5ft (1.0m), 12s period, S swell with glassy winds.
  • Most powerful swell: Wednesday 2 Sep, 3AM (local time) - 3.5ft (1.0m), 12s period, S swell with 271 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 3PM (local time) - 1.5ft (0.5m), 10s period with S 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 Thursday (Aug 27) at 3PM. 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 0.8m and 6s 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 1.0m 12s and forecast to arrive on Wednesday (Sep 02) at 3AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Aug 29) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 27th Aug)1.5ft (0.5m) 10s
Best Surf 3AM (Wed 2nd Sep)3.5ft (1.0m) 12s
Most Powerful 3AM (Wed 2nd Sep)3.5ft (1.0m) 12s

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


The Lowdown

Alright folks, Rusty here. Let's take a look at what's cooking for the Sakawa River stretch.

Right off the bat, we're in a bit of a flat spell. The water's sitting at a warm 82°, which is pretty standard for this time of year. The first week is looking grim, with nothing but tiny, weak waves on the menu. The combined energy is barely registering, with values like 169, 139, and even down to 36 for a few days. We're talking about a long, quiet stretch from Thursday the 27th all the way through to the end of the first week.

The real story starts to kick in around the end of the first week. There's a pulse of energy that arrives on Friday the 4th of September. The morning brings a solid 7ft swell from the SSE, with a period of 11 seconds, and the combined energy jumps to 1079. That's a serious amount of power. The wind is light, but it's a cross-on, so the morning session might be a bit lumpy. The real standout window is the afternoon of that same day, Friday the 4th. The swell drops to a still-juicy 5ft from the SE, with a light NNE breeze that's cross-offshore. That's going to clean things up nicely, and the forecast is calling it "very good surf conditions." That's the pick of the early run.

Then it gets even more interesting. The following Monday, September 7th, the morning session is looking like the absolute standout. We've got a 6ft swell from the S, with a moderate 1077 combined energy, and a light cross-offshore wind from the NNE. The forecast is calling for "very good surf conditions" again. This is the one to circle on the calendar.

Tuesday the 8th brings more size, with the swell pushing up to 7ft in the morning and 8ft in the afternoon. That's getting into expert-only territory, especially at a river mouth. The wind stays light, but it's cross-on, so expect some bump. The energy is massive, peaking at 1742, but the quality will be a question mark for the average punter.

For the rest of the second week, the wind turns crap again, with strong cross-shore breezes and the swell drops right back off. It's a classic case of picking your window.

The one to go for: Monday morning, September 7th at Sakawa River. You'll get that clean 6ft south swell with a light offshore touch. It's not going to be perfect, but it's the best of the lot.

Stay stoked.

Rusty

Short Range Forecast

Moderate rain (total 18mm), heaviest on Thu afternoon. Warm (max 29°C on Thu morning, min 24°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Sun night. Warm (max 28°C on Mon morning, min 24°C on Sun morning). Wind will be generally light.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
S
11
0.5
S
10
0.7
S
10
0.7
S
9
0.6
S
8
0.5
S
8
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.4
SE
10
0.3
SE
10
0.5
S
11
0.8
S
10
0.9
S
11
0.9
S
10
0.9
S
10
1
S
10
1
S
11
1.1
S
10
1.1
S
10
Wave Graph
Metric surfscale
Energy kJ
58
54
88
74
49
33
30
31
29
25
27
17
63
133
188
167
161
179
231
244
259
Wind (km/h)
5
SSW
10
NNE
10
SW
10
SW
5
SE
10
NE
10
ENE
5
SSE
10
NE
5
ENE
5
S
5
NNE
5
ENE
10
S
10
ENE
10
NE
10
SE
5
NNW
10
S
20
SSW
15
SW
Wind State
cross-on
cross-off
cross
cross
glassy
cross
cross-on
glassy
cross
glassy
glassy
glassy
glassy
cross-on
cross-on
cross
on
glassy
cross-on
cross
cross
High Tide
5:08PM1.43m
4:16AM1.47m
5:27PM1.46m
4:55AM1.50m
5:45PM1.49m
5:33AM1.50m
6:05PM1.51m
6:13AM1.47m
6:25PM1.51m
6:56AM1.41m
6:47PM1.51m
7:44AM1.31m
7:09PM1.49m
Low Tide
10:25AM0.20m
10:39PM0.74m
10:54AM0.20m
11:08PM0.63m
11:22AM0.24m
11:38PM0.52m
11:50AM0.32m
00:10AM0.43m
12:17PM0.43m
00:44AM0.36m
12:44PM0.57m
1:22AM0.32m
1:11PM0.72m
2:06AM0.32m
thunderstorm
mod rain
light rain
thunderstorm
cloud
rain showers
part cloud
light rain
cloud
cloud
part cloud
rain showers
rain showers
thunderstorm
thunderstorm
part cloud
clear
rain showers
rain showers
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:11
5:13
5:13
5:15
5:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:17
6:16
6:15
6:14
6:13
6:10
6:09
 mm
2
8
4
2
1
1
2
1
1
3
2
1
1
Temp °C
29
27
26
28
29
27
27
27
25
24
26
26
28
28
26
28
28
26
28
29
26
Feels °C
35
31
31
32
33
31
29
31
29
28
31
32
32
32
30
31
31
31
30
30
29
  • 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