Sakawa River surfForecast / Kanagawa / Japan

information circle16 Day Weather and Surf, issued 2 pm 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 1.8°C colder than average for this time of year)

Sakawa River surf forecast from 28 May 2026:

  • Best quality surf: Thursday 4 Jun, 3AM (local time) - 11ft (3.5m), 9s period, SE swell with cross-onshore winds.
  • Most powerful swell: Thursday 4 Jun, 6AM (local time) - 15ft (4.5m), 10s period, SE swell with 4,449 kJ wave energy.
  • Next surfable swell (1★+): Friday 29 May, 12AM (local time) - 4.5ft (1.4m), 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 Friday (May 29) at 12AM. The primary swell is predicted to be 1.4m and 7s period with a secondary swell of 1.0m and 7s. Another secondary swell of 0.5m and 8s 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 4.5m 10s and forecast to arrive on Thursday (Jun 04) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Thursday (Jun 04) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 29th May)4.5ft (1.4m) 7s
Best Surf 3AM (Thu 4th Jun)11ft (3.5m) 9s
Most Powerful 6AM (Thu 4th Jun)15ft (4.5m) 10s

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 6mm), mostly falling on Fri night. Warm (max 26°C on Sun morning, min 20°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Mon morning, min 20°C on Mon night). Wind will be generally light.

Thu
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
2
2
0
0
1
0
0
1
0
2
1
1
3
1
0
2
1
0
2
0
Swell
Height Map
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
1.4
SSW
7
1.6
SW
7
0.8
S
7
0.6
S
7
0.4
ESE
11
0.5
ESE
11
0.4
ESE
11
0.5
SE
10
0.5
S
13
0.9
S
12
0.8
SSW
15
1.2
S
14
1.1
S
13
0.9
SSW
14
0.8
SSW
13
0.9
SSW
13
0.9
SSW
14
0.9
SSW
13
2.5
SE
8
3.5
SE
11
Wave Graph
Metric surfscale
Energy kJ
77
183
266
64
33
42
70
47
47
80
228
284
529
408
325
229
289
322
303
816
3119
Wind (km/h)
10
SSW
10
WSW
5
SE
10
E
5
NE
5
SE
15
S
10
W
5
SSE
10
S
10
WNW
10
S
15
SSW
15
WSW
10
SSW
20
SSW
10
WSW
10
SSW
15
S
10
NE
25
ESE
cross-on
cross-off
glassy
cross-on
cross
glassy
cross-on
cross-off
glassy
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross
cross-off
cross
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
5:37AM1.42m
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
cloud
part cloud
rain showers
rain showers
rain showers
clear
part cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
heavy rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:30
4:30
4:30
4:28
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
6:52
1
1
4
99
77
Temp °C
23
23
24
25
21
24
24
22
26
25
24
27
27
23
25
25
21
23
22
22
22
26
26
28
26
23
22
22
23
25
24
24
25
25
22
24
23
21
23
22
22
22
Swell 1
Height (m)
Direction
Period (s)
0.7
SE
9
1
S
7
0.9
S
7
0.8
S
7
0.6
ESE
5
0.7
ESE
6
0.5
ESE
11
0.4
ESE
11
0.5
SE
10
0.5
S
13
0.9
S
12
0.8
SSW
15
1.2
S
14
1.1
S
13
0.9
SSW
12
0.8
SSW
13
0.9
SSW
13
0.9
SSW
14
0.9
SSW
13
1
S
9
3.5
SE
11
Energy kJ
77
94
79
64
20
36
70
47
47
80
228
284
529
408
228
229
289
322
303
165
3119
Swell 2
Height (m)
Direction
Period (s)
0.3
S
5
0.5
ESE
8
0.5
ESE
10
0.4
ESE
9
0.6
S
7
0.4
ESE
11
0.4
S
6
0.4
SSE
6
0.3
S
14
0.6
SE
10
0.4
SE
10
0.8
S
11
0.4
SSW
17
0.8
SSW
15
0.9
SSW
14
0.7
S
11
0.5
SW
15
0.3
ESE
9
0.3
ESE
9
0.6
SW
13
1.8
SSW
14
Energy kJ
4
37
52
28
33
42
12
12
36
59
24
149
117
263
325
110
109
17
17
144
1299
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
13
0.4
SE
10
0.2
ESE
12
0.2
ESE
12
0.4
ESE
9
0.4
S
6
0.2
ESE
5
0.4
SE
7
0.1
SE
12
0.3
SSW
16
0.3
SSW
17
0.4
SE
11
0.4
SE
11
0.3
SE
11
0.4
SE
11
0.3
SE
11
0.3
SE
12
0.3
SE
11
0.3
SE
11
0.3
SW
16
0.8
SSW
19
Energy kJ
17
25
15
14
32
13
3
13
5
49
54
30
31
20
30
19
21
19
19
41
492
Wind waves
Height (m)
Direction
Period (s)
0.2
SSW
5
1.4
SSW
7
1.6
SW
7
0.3
SSW
2
0.5
S
6
0.5
S
3
2.5
SE
8
1.2
NNE
4
Energy kJ
2
183
266
1
18
4
816
54
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
1
1
1
1
1
2
2
2
4
3
4
3
2
2
4
2
4
Distance (km)
68
0
0
58
451
0
68
67
0
115
0
27
68
0
68
910
0
114
58
27
468
Best forecast wave conditions in Kanagawa
Rating
(10 max)
2
2
1
1
2
2
3
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
3
2
1
2
2
1
2
3
4
4
4
4
5
3
4
2
4
2
4
Header Global
Rating
(10 max)
9
9
7
5
5
5
5
7
7
6
5
4
5
4
4
5
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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