Sakawa River Surf Break

Lat Long: 35.24° N 139.15° E

Sakawa River Surf Forecast and Surf Report

Issued: 2 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Sakawa River sea temperature is
25.1° C
0.6° 

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 17 Jul 2026:

  • Best quality surf: Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s period, SE swell with glassy winds.
  • Most powerful swell: Saturday 18 Jul, 12PM (local time) - 2ft (0.6m), 9s period, SE swell with 50 kJ wave energy.
  • Next surfable swell (1★+): Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s 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 Friday (Jul 24) at 12AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.4m and 4s. Another secondary swell of 0.4m and 10s is also forecast. 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 0.6m 9s and forecast to arrive on Saturday (Jul 18) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Jul 20) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 24th Jul)1ft (0.3m) 18s
Best Surf12AM (Fri 24th Jul)1ft (0.3m) 18s
Most Powerful12PM (Sat 18th Jul)2ft (0.6m) 9s

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


The Lowdown

### Imperial

Alright, let’s be straight with you. The next week and a bit is a total write-off. We’re looking at tiny, weak swells and poor conditions. From Saturday the 18th right through to the 26th, you’re not going to find anything rideable. The waves are stuck between 0.7 ft and 2 ft with hardly any energy behind them (the combined energy is mostly in the double digits, well under 100). The wind is mostly cross-onshore, and even the glassy mornings on the 20th and 21st can’t save it because the swell is just too small. It’s a frustrating gap that lasts over a week.

We finally get a pulse of life around the 27th of July. The swell starts to build, but it’s still messy. By the 28th, we’re seeing 6 ft to 7 ft swell from the SSE, but the wind is mostly cross-onshore, and the energy is ramping up (882 in the morning, 1452 in the afternoon). It’s still a bit raw for a good paddle.

The real standout, the one you’ve been waiting for, is the morning of Friday, the 31st of July. We get a solid 8 ft swell from the S, with a period of 14 seconds – that’s a proper groundswell. The wind is coming from the NNE, which is a nice cross-offshore breeze, keeping things clean. The combined energy is a strong 2230. This is for experienced surfers only, as it’s plenty powerful. The long period will mean longer lulls between sets, making the paddle out easier, but it’ll be a freight train when it hits.

Then, on the morning of Saturday, the 1st of August, it drops a bit to 4 ft from the S, but the wind goes glassy. It’s a much more manageable size, perfect for a fun session. The water temperature is about average for the time of year, nothing unusual.

So, your best bet is the 31st of July morning for the big stuff, or the 1st of August morning for something cleaner and smaller. After that, it looks like it’s fading again.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 30°C on Mon afternoon, min 25°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 15mm), heaviest on Thu night. Warm (max 31°C on Wed morning, min 26°C on Thu night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
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
0
0
0
0
0
0
0
0
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)
0.4
SE
9
0.5
SE
8
0.4
ESE
10
0.4
ESE
10
0.4
SE
8
0.4
SE
7
0.3
E
9
0.2
ESE
11
0.3
ESE
11
0.2
ESE
11
0.2
ESE
11
0.2
ESE
11
0.2
ESE
11
0.2
ESE
11
0.2
SSE
11
0.3
SE
10
0.3
SE
10
0.3
SE
18
0.3
SE
18
0.3
SE
17
0.3
SE
16
Wave Graph
Metric surfscale
Energy kJ
31
35
31
31
21
19
14
12
23
12
12
11
11
11
11
16
16
49
49
45
41
Wind (km/h)
10
SE
10
SSE
10
S
10
S
15
S
10
WSW
5
SSW
10
SSW
10
W
5
SSW
10
S
10
W
5
SSE
10
S
5
NW
10
ENE
5
S
0
NNW
5
SE
10
S
0
E
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross-off
glassy
cross-on
cross-off
cross-on
cross-on
cross-off
glassy
cross-on
off
cross-on
cross-on
glassy
glassy
cross-on
glassy
High Tide
7:58PM1.42m
7:26AM1.35m
8:23PM1.41m
8:21AM1.23m
8:47PM1.39m
9:26AM1.10m
9:12PM1.37m
10:59AM1.02m
9:42PM1.35m
1:52PM1.02m
10:23PM1.31m
4:25PM1.11m
11:26PM1.28m
Low Tide
1:19PM0.24m
1:45AM0.69m
1:50PM0.42m
2:33AM0.63m
2:19PM0.59m
3:26AM0.59m
2:44PM0.76m
4:27AM0.55m
3:05PM0.90m
5:40AM0.52m
3:15PM1.02m
6:57AM0.47m
5:07PM1.11m
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
rain showers
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:41
4:41
4:41
4:43
4:43
4:43
4:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:55
6:55
6:54
6:54
6:53
6:52
 mm
1
2
1
1
2
2
6
1
2
3
Temp °C
27
28
26
28
28
27
29
30
27
30
30
28
31
31
29
29
30
27
28
28
27
Feels °C
30
31
30
31
31
31
34
34
31
35
34
33
35
36
34
33
34
33
33
32
33
  • 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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