Sakawa River Surf Break

Lat Long: 35.24° N 139.15° E

Sakawa River Surf Forecast and Surf Report

Issued: 2 am 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sakawa River sea temperature is
23.9° 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 7 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 9PM (local time) - 6ft (1.8m), 15s period, SSE swell with glassy winds.
  • Most powerful swell: Saturday 11 Jul, 3AM (local time) - 7.5ft (2.3m), 16s period, SSW swell with 2,523 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 8 Jul, 9PM (local time) - 6ft (1.8m), 15s period with SSE 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 Wednesday (Jul 08) at 9PM. The primary swell is predicted to be 1.8m and 15s period with a secondary swell of 0.7m and 8s. 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 2.3m 16s and forecast to arrive on Saturday (Jul 11) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Wednesday (Jul 15) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 8th Jul)6ft (1.8m) 15s
Best Surf 9PM (Wed 8th Jul)6ft (1.8m) 15s
Most Powerful 3AM (Sat 11th Jul)7.5ft (2.3m) 16s

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


Alright folks, Rusty here from the Sakawa River. We’ve got a real mixed bag coming our way over the next couple of weeks and nothing that’s going to have you calling in sick for work. The window starts on Wednesday, July 8th, and honestly, it’s a slow grind for a lot of it.

The water temp is sitting at 75°, which is just a shade cooler than normal for this time of year – nothing you’d really notice on a sunny day.

First up, Wednesday morning, July 8th. We’ve got chest-high stuff, coming in from the SE at 5ft. The wind is a light E cross-onshore so there’s a bit of texture on it, and the period’s at 14 seconds – that's a decent groundswell pushing in, but the combined energy is real strong (1512). The afternoon sees the swell bump up to a solid 6ft from the SSE, but the wind swings south and stays cross-on, making it a bit lumpy. The setup looks more interesting for kite surfing than a paddle session.

Thursday, July 9th, stays similar in size at 5ft, but the morning has that clean southeast wind going straight onshore. It’s not great. Friday the 10th, the morning is your best bet with a clean 6ft S swell and that light SE offshore wind. It’s the closest we get to clean all week. But by the afternoon it gets messy again.

The weekend is a write-off. Saturday and Sunday see the swell hold from the south and southwest, but the winds are cross-on and picking up, making it choppy and unappealing. The energy dips hard by Sunday afternoon (558), and from Monday the 13th through to Wednesday the 15th, the swell drops off to knee-high junk. Poor surf conditions all round. That’s a four-day stretch with nothing on offer.

Things start to whisper again on Thursday the 16th with waist-high SE swell, but the wind’s not playing ball. There’s a glimmer Friday afternoon, July 17th, when a 5ft SE swell meets a light cross-offshore wind from the NNE – that’ll clean it up, but it's still only marginal tide conditions.

Then we get a little pulse of energy on Sunday, July 19th. The morning sees a solid 8ft SE groundswell (2177 combined energy) with a 15-second period – that’s proper long-period groundswell. The wind is cross-shore from the NE, keeping it just about rideable. For the river mouth, that longer period might make it break a bit straight, but you could find a corner. This is your one standout window for intermediate surfers.

Monday, July 20th, is a monster. The swell peaks at 13ft from the SE (7832 combined energy – that’s very strong) with near-perfect offshore wind. Before you get excited, the forecast says it’s simply too big for this break – expert-only territory and even then, dangerous. Skip it. It drops back to a manageable 8ft on Tuesday the 21st, but the period drops to 13 seconds and the wind is cross-on again.

The tail end of the forecast, Thursday July 23rd, has more size – 10ft from the SE (4672 combined energy) – but it’s the same story: big, messy, and cross-onshore.

Honestly, if you’re itching for a paddle, Friday morning July 10th is your call for clean lines on a chest-high S swell. Otherwise, the Sunday the 19th window is the only time the river gets a bit of juice with halfway decent wind. It’s a slow period for the Sakawa.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri morning, min 22°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Sun night. Warm (max 27°C on Sun morning, min 24°C on Sat night). Wind will be generally light.

Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
4
2
2
4
3
1
4
3
1
4
2
0
1
0
0
1
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SE
14
1.9
SSE
16
1.7
SSE
14
1.6
SSE
14
1.6
S
14
2
S
15
1.8
S
14
2.2
S
16
2.2
SSW
16
2.1
SSW
16
2.1
SSW
16
1.7
SSW
16
1.4
SSW
15
1.2
SSW
14
0.7
SW
13
0.7
SSW
12
0.6
SSW
11
0.6
SSW
11
0.7
SSE
12
1.1
SE
13
1.6
SE
14
Wave Graph
Metric surfscale
Energy kJ
822
1684
1083
1121
1033
1712
1281
2389
2365
2299
2133
1393
833
519
178
145
98
93
138
431
975
Wind (km/h)
5
E
10
S
5
SW
5
SSE
15
S
5
WSW
5
SE
15
S
10
WSW
10
S
20
S
10
WSW
10
S
15
S
5
WSW
5
SSW
10
SSW
5
WSW
5
S
10
S
5
SW
Wind State
cross-on
cross-on
glassy
on
cross-on
cross-off
on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
High Tide
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
2:07AM1.45m
5:21PM1.45m
3:07AM1.51m
5:59PM1.48m
Low Tide
3:45PM0.76m
5:38AM0.51m
4:48PM0.92m
6:49AM0.38m
6:20PM1.05m
7:55AM0.23m
7:58PM1.11m
8:54AM0.09m
9:12PM1.12m
9:48AM-0.02m
10:07PM1.09m
10:37AM-0.09m
10:53PM1.03m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:35
4:35
4:37
4:37
4:37
4:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
7:00
7:00
6:59
6:59
6:59
 mm
1
3
2
1
Temp °C
24
25
23
26
26
24
27
27
24
26
26
24
27
27
24
27
25
25
28
28
26
Feels °C
26
26
26
27
27
27
29
29
26
28
27
27
29
29
27
30
29
30
32
31
30
  • Map Icons:
  • Break
  • 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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