Sakawa River surfForecast / Kanagawa / Japan

information circle16 Day Weather and Surf, issued 8 pm Friday 29 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
20.3° C
(Which is 1.5°C colder than average for this time of year)

Sakawa River surf forecast from 29 May 2026:

  • Best quality surf: Thursday 4 Jun, 6AM (local time) - 8ft (2.5m), 10s period, SE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 3 Jun, 9PM (local time) - 15ft (4.5m), 10s period, SE swell with 4,015 kJ wave energy.
  • Next surfable swell (1★+): Saturday 30 May, 3AM (local time) - 2ft (0.6m), 6s period with ESE 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 Saturday (May 30) at 3AM. The primary swell is predicted to be 0.6m and 6s period with a secondary swell of 0.4m and 7s. Another secondary swell of 0.3m 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 4.5m 10s and forecast to arrive on Wednesday (Jun 03) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 5s period and expected on Thursday (Jun 04) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sat 30th May)2ft (0.6m) 6s
Best Surf 6AM (Thu 4th Jun)8ft (2.5m) 10s
Most Powerful 9PM (Wed 3rd 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

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

Days 5-7 Weather Summary

Heavy rain (total 285mm), heaviest during Wed night. Warm (max 26°C on Thu morning, min 19°C on Mon night). Mainly strong winds.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Fri
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
1
0
1
0
0
2
0
0
1
0
3
2
3
0
0
0
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)
0.5
ESE
9
0.4
ESE
11
0.4
ESE
11
0.4
ESE
11
0.4
S
14
0.6
S
12
0.8
S
12
0.7
S
11
0.6
SSW
14
0.9
SSW
12
0.8
SSW
13
0.9
SSW
12
0.9
SSW
13
0.7
SSW
13
1.1
SW
17
3
SSW
14
2
SE
10
1.2
ESE
10
0.9
SE
9
0.6
S
8
0.5
ESE
9
Wave Graph
Metric surfscale
Energy kJ
47
42
48
47
61
112
171
112
143
250
229
232
277
145
702
3445
773
256
118
48
42
Wind (km/h)
10
N
5
SE
15
S
5
NW
5
E
15
SSW
10
WNW
5
SSE
10
S
10
WSW
10
SSW
15
S
5
S
10
E
20
NNE
40
NNE
0
SE
10
SSE
5
SE
10
E
5
SSE
cross-off
glassy
cross-on
off
glassy
cross-on
cross-off
on
cross-on
cross-off
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
glassy
cross-on
on
cross-on
glassy
High Tide
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
8:12PM1.31m
6:14AM1.37m
Low Tide
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
12:57PM0.20m
1:03AM0.99m
1:35PM0.26m
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
mod rain
heavy rain
heavy rain
heavy rain
clear
rain showers
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:30
4:30
4:30
4:28
4:28
4:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:50
6:51
6:52
6:52
6:52
6:52
6:53
8
48
77
150
2
Temp °C
22
24
24
21
26
25
23
27
26
21
23
22
20
20
20
22
26
24
23
20
20
19
23
23
20
25
24
22
26
25
21
22
21
21
22
18
19
29
25
26
21
22
Swell 1
Height (m)
Direction
Period (s)
0.5
S
7
0.6
ESE
6
0.5
SE
6
0.4
ESE
11
0.4
ESE
10
0.6
S
12
0.8
S
12
0.7
S
11
0.7
S
10
0.9
SSW
12
0.8
SSW
13
0.9
SSW
12
0.9
SSW
13
0.7
SSW
13
0.9
SSW
9
3.5
SE
11
2
SE
10
1.2
ESE
10
0.9
SE
9
0.6
S
8
0.5
ESE
9
Energy kJ
23
24
18
47
32
112
171
112
96
250
229
232
277
145
140
2335
773
256
118
48
42
Swell 2
Height (m)
Direction
Period (s)
0.5
ESE
9
0.4
ESE
11
0.4
ESE
11
0.4
SE
5
0.4
S
14
0.5
SE
10
0.4
SE
10
0.4
SSW
5
0.6
SSW
14
0.6
SSW
15
0.7
S
11
0.4
SSW
14
0.3
SE
12
0.3
SE
11
0.3
SW
14
3
SSW
14
1.2
SSW
11
1.1
S
10
0.7
S
8
0.6
ESE
8
0.5
S
8
Energy kJ
47
42
48
7
61
47
34
8
143
142
110
78
21
20
29
3445
331
230
69
48
29
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.3
SSW
7
0.3
SSW
6
0.3
S
6
0.3
S
6
0.3
SE
12
0.3
SE
11
0.4
SSW
14
0.3
ESE
9
0.3
SE
11
0.4
SE
11
0.3
SE
12
0.2
ESE
10
0.1
SE
15
1.1
SW
17
0.5
NE
4
0.4
SSW
9
0.1
SE
12
0.1
SE
12
Energy kJ
6
9
8
7
6
22
20
66
17
19
30
21
9
8
702
7
32
6
6
Wind waves
Height (m)
Direction
Period (s)
0.4
NE
3
0.4
SW
3
0.6
SW
5
0.6
SSW
4
0.7
SW
4
1
SE
5
2.5
SE
7
1.9
NNE
5
0.4
NNE
5
0.6
NNE
4
0.8
ENE
4
0.4
ENE
3
0.2
SSE
2
Energy kJ
3
3
19
13
14
48
696
206
11
10
26
4
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
1
2
1
1
3
2
1
3
4
2
3
3
3
1
1
1
1
Distance (km)
111
50
96
67
0
68
0
30
68
0
67
114
111
114
758
450
0
27
41
37
481
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
1
1
2
3
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
1
2
2
3
4
5
4
4
3
4
4
4
3
3
4
3
2
1
Header Global
Rating
(10 max)
5
5
5
7
7
6
5
5
4
4
5
8
4
6
5
5
5
5
5
7
6
  • 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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