Sakawa River surfForecast / Kanagawa / Japan

information circle16 Day Weather and Surf, issued 8 am Thursday 28 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Sakawa River surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sakawa River sea temperature is
19.9° C
(Which is 1.7°C colder than average for this time of year)

Sakawa River surf forecast from 28 May 2026:

  • Best quality surf: Monday 1 Jun, 9AM (local time) - 4.5ft (1.3m), 15s period, S swell with glassy winds.
  • Most powerful swell: Thursday 4 Jun, 3PM (local time) - 11ft (3.5m), 14s period, SSW swell with 4,122 kJ wave energy.
  • Next surfable swell (1★+): Thursday 28 May, 9PM (local time) - 3.5ft (1.0m), 7s period with SSW 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 (May 28) at 9PM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.8m and 7s. Another secondary swell of 0.7m and 9s 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 3.5m 14s and forecast to arrive on Thursday (Jun 04) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Saturday (May 30) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 28th May)3.5ft (1.0m) 7s
Best Surf 9AM (Mon 1st Jun)4.5ft (1.3m) 15s
Most Powerful 3PM (Thu 4th Jun)11ft (3.5m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 4mm), mostly falling on Fri night. Warm (max 25°C on Fri morning, min 20°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Mon morning, min 20°C on Tue night). Wind will be generally light.

Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
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
2
1
0
1
1
0
0
0
0
2
3
1
3
1
0
2
2
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SE
9
0.7
ESE
9
1.2
SSW
7
0.8
S
7
0.6
ESE
9
0.5
ESE
9
0.4
ESE
11
0.7
ESE
11
0.4
ESE
11
0.4
S
14
0.7
S
13
1
S
13
1.3
S
15
1.3
SSW
14
1.4
SSW
13
0.9
SSW
14
0.9
SSW
14
0.9
SSW
13
0.9
SSW
13
0.9
SSW
13
0.9
SSW
13
Wave Graph
Metric surfscale
Energy kJ
77
67
139
62
68
47
41
109
40
58
158
319
723
714
642
316
299
289
307
277
269
Wind (km/h)
15
S
10
SSW
10
W
5
ESE
15
ESE
5
NNE
5
SSE
15
S
5
WNW
5
ESE
10
S
5
NNW
5
E
10
SSE
5
W
10
SE
15
SSE
5
WSW
5
ESE
10
ENE
15
SSE
cross-on
cross-on
cross-off
glassy
on
glassy
glassy
cross-on
off
cross-on
cross-on
glassy
glassy
cross-on
glassy
on
cross-on
cross-off
glassy
cross-on
cross-on
High Tide
3:47PM1.27m
2:23AM1.40m
4:29PM1.33m
2:53AM1.42m
5:07PM1.36m
3:24AM1.44m
5:43PM1.38m
3:56AM1.45m
6:19PM1.37m
4:28AM1.45m
6:56PM1.35m
5:02AM1.45m
7:33PM1.33m
Low Tide
8:50PM0.90m
9:29AM0.24m
9:30PM0.93m
10:02AM0.17m
10:06PM0.95m
10:36AM0.13m
10:40PM0.97m
11:10AM0.11m
11:13PM0.98m
11:45AM0.12m
11:45PM0.99m
12:21PM0.15m
00:21AM0.99m
part cloud
part cloud
clear
rain showers
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
light rain
light rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:31
4:30
4:30
4:30
4:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:50
6:50
6:51
6:52
6:52
6:52
1
3
4
5
46
Temp °C
24
23
23
25
24
21
24
24
21
25
25
23
26
26
22
24
24
21
21
21
21
25
25
26
29
24
23
23
23
21
25
25
24
26
24
23
24
24
22
23
23
24
Swell 1
Height (m)
Direction
Period (s)
0.7
SE
9
0.7
ESE
9
0.9
S
7
0.8
S
7
0.7
S
7
0.6
S
7
0.7
ESE
6
0.7
ESE
11
0.4
ESE
11
0.4
ESE
10
0.7
S
13
1
S
13
1.3
S
15
1.3
SSW
14
1.4
SSW
13
0.9
SSW
12
0.9
SSW
14
0.9
SSW
13
0.9
SSW
13
0.9
SSW
13
0.9
SSW
13
Energy kJ
77
67
74
62
47
32
35
109
40
37
158
319
723
714
642
228
299
289
307
277
269
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
13
0.3
S
5
0.5
ESE
8
0.5
ESE
9
0.2
ESE
12
0.5
ESE
6
0.4
ESE
11
0.3
S
6
0.4
SSE
6
0.4
S
14
0.4
SSE
6
0.5
S
16
0.4
SE
11
0.4
SE
11
0.3
SE
11
0.9
SSW
14
0.8
S
11
0.5
SW
15
0.3
ESE
9
0.3
ESE
9
0.3
SE
11
Energy kJ
17
4
37
50
15
18
41
7
15
58
13
127
30
31
19
316
143
109
17
17
19
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
10
0.2
ESE
13
0.4
SE
10
0.2
ESE
12
0.1
S
15
0.5
ESE
9
0.4
SSW
6
0.3
SSE
6
0.2
SSE
7
0.3
SSE
6
0.3
ESE
10
0.4
SSE
6
0.6
E
10
0.4
SW
18
0.2
E
9
0.3
SE
11
0.3
SE
11
0.4
SE
10
0.3
SE
11
0.3
SE
11
0.2
ESE
9
Energy kJ
4
17
25
15
4
47
14
7
5
7
19
12
73
83
6
20
19
28
20
19
8
Wind waves
Height (m)
Direction
Period (s)
0.2
SSW
5
1.2
SSW
7
0.6
ESE
9
0.8
E
5
0.2
NNE
3
0.9
SSE
5
0.9
SE
5
Energy kJ
2
139
68
37
1
42
42
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
1
1
1
1
1
1
1
2
3
3
3
4
3
2
2
4
2
Distance (km)
67
67
0
0
58
0
0
58
67
50
24
0
0
58
0
53
58
0
0
68
115
Best forecast wave conditions in Kanagawa
Rating
(10 max)
2
1
1
1
1
1
2
3
3
4
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
3
2
1
2
1
2
3
3
4
4
3
4
6
3
4
2
4
3
Header Global
Rating
(10 max)
7
9
9
6
5
5
5
5
7
7
5
5
5
4
4
4
5
5
5
4
4
  • 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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