Sakawa River Surf Break

Lat Long: 35.24° N 139.15° E

Sakawa River Surf Forecast and Surf Report

Issued: 8 am 26 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sakawa River sea temperature is
27.3° C
0.9° 

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: Sunday 26 Jul, 6PM (local time) - 1.5ft (0.4m), 14s period, SE swell with glassy winds.
  • Most powerful swell: Sunday 2 Aug, 9AM (local time) - 2.5ft (0.7m), 14s period, ESE swell with 178 kJ wave energy.
  • Next surfable swell (1★+): Sunday 26 Jul, 6PM (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 Sunday (Jul 26) at 6PM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.4m and 11s. 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 0.7m 14s and forecast to arrive on Sunday (Aug 02) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Jul 28) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sun 26th Jul)1.5ft (0.4m) 14s
Best Surf 6PM (Sun 26th Jul)1.5ft (0.4m) 14s
Most Powerful 9AM (Sun 2nd Aug)2.5ft (0.7m) 14s

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


The Lowdown

G’day, Rusty here. Look, I’ll be straight with you – the next couple of weeks are a bit of a mixed bag for the Sakawa River. The river mouth isn’t flashing any fireworks early on, but there’s some serious size lurking out there in the second week for those who know what they’re doing. The tide and wind windows will be everything.

The first few days are flat and forgettable. Sunday the 26th of July through to Tuesday the 29th serve up tiny 1ft to 2ft pulses from the SE with weak energy (80-102). Winds are mostly cross-onshore, apart from Tuesday morning and Wednesday morning when it goes glassy. That glassy spell on Tuesday the 28th morning might give you a clean little 2ft wave, but it’s ordinary at best. The water temp is sitting at 81°, pretty normal for this time of year.

We slog through a long gap from Thursday the 30th right through to Saturday the 1st of August with nothing worth paddling for – tiny swell, poor conditions, and energy dribbling down to 30. Then on Sunday the 2nd of August, we get a slight bump to 2ft from the ESE with a long 14-second period. The combined energy jumps to 186, but it’s cross-shore wind and still not clean. Not your day.

Now, Monday the 3rd of August morning is where things start to get interesting. The swell pumps up to 5ft from the ESE, 15-second period, and the energy hits 881. It’s marginal, but there’s a pulse. By the afternoon, it’s 5ft and the wind goes offshore, light from the SSE. That’s a standout moment – the first real offshore wind we’ve seen, and the river mouth could offer some clean lines. The swell is 5ft, coming from the ESE, and with that long period groundswell, it’s best at the river mouth where the current can shape it up. It’s not for beginners, but intermediates should be able to find a few. Crowds are possible here – it’s a fairly consistent spot that can get a few people on it.

Tuesday the 4th of August sees the swell climb to 7ft from the ESE, 16-second period, energy at 1987. Winds are cross from the NE, a bit messy. This is big, expert-level territory by Wednesday the 5th of August morning, when we hit 8ft from the ESE with a cross-offshore breeze from the NNE. That’s clean, powerful, and the energy is 3444 – a proper session for the brave. The period is 16 seconds, so it’s a long, grinding groundswell that will love the river mouth.

By Thursday the 6th of August, the swell explodes. 13ft from the SE, 17-second period, energy at 8812. The wind is light and cross-onshore, but the forecast notes the swell is too big for this break. That’s a hard pass – only absolute experts with a death wish, and even then, it’s likely closing out or washing over the bank. Friday the 7th and Saturday the 8th are even bigger, peaking at 18ft on Saturday morning with glassy conditions (energy 17987). It’s a monster, but it’s out of control for paddle surfing at the river. If you’ve got a kite, the setup looks more interesting, but for a surfboard, it’s a no-go.

Sunday the 9th of August drops back to 8ft from the S, 11-second period, energy 2816. Winds are light cross-onshore – still big, but maybe manageable for the experienced. Monday the 10th of August finishes with 6ft from the ESE, 15-second period, energy 1524, but the wind is cross-onshore and choppy.

Best on offer? Monday the 3rd of August afternoon – 5ft ESE swell, offshore wind, clean conditions at the river mouth. That’s your window for a proper session. Wednesday the 5th of August morning is the standout for size and cleanliness – 8ft, cross-offshore wind, pure power – but it’s only for experts. Everything else is either too small, too messy, or too big.

Stay safe out there.

Rusty

Short Range Forecast

Heavy rain (total 32mm), heaviest during Sun night. Warm (max 29°C on Sun afternoon, min 24°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Wed morning. Warm (max 31°C on Fri morning, min 25°C on Wed night). Wind will be generally light.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
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
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)
0.3
SE
15
0.4
SE
11
0.4
SE
14
0.4
SE
14
0.3
SE
14
0.4
SE
10
0.5
SE
10
0.5
SE
10
0.7
SW
8
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.5
S
6
0.5
S
6
0.4
SSW
7
0.3
SE
9
0.2
ESE
15
0.4
SE
14
Wave Graph
Metric surfscale
Energy kJ
42
40
52
51
36
36
49
49
72
34
34
23
23
23
23
21
21
15
14
21
47
Wind (km/h)
5
S
10
SSE
15
NNE
10
ENE
5
SSE
5
SE
5
E
10
SSW
10
NNE
5
E
10
SSE
5
ENE
10
S
15
S
5
W
5
S
10
S
5
NE
10
ENE
10
S
10
ENE
Wind State
cross-on
cross-on
cross-off
cross-on
cross-on
on
glassy
cross-on
cross-off
glassy
cross-on
glassy
cross-on
cross-on
cross-off
glassy
cross-on
glassy
cross-on
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
clear
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
rain showers
part cloud
part cloud
part cloud
clear
thunderstorm
rain showers
part cloud
thunderstorm
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:47
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
7
9
2
3
5
1
4
1
1
1
1
1
3
6
Temp °C
28
29
26
27
28
25
26
26
25
27
28
25
29
28
27
31
31
28
29
29
26
Feels °C
31
34
29
30
31
29
30
30
29
30
31
30
31
30
31
35
35
33
34
33
31
  • 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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