Sakawa River surfForecast / Kanagawa / Japan

information circle16 Day Weather and Surf, issued 2 pm Tuesday 05 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
19.1° C
(Which is slightly cooler than normal)

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 (May 06) at 3AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.4m and 4s. Another secondary swell of 0.7m and 6s 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 1.5m 7s and forecast to arrive on Saturday (May 09) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (May 09) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 6th May)2.5ft (0.7m) 6s
Best Surf 3AM (Wed 6th May)2.5ft (0.7m) 6s
Most Powerful12AM (Sat 9th May)5ft (1.5m) 7s

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 Wed night. Warm (max 22°C on Fri morning, min 15°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Fri afternoon, min 15°C on Sat night). Mainly fresh winds.

Tue
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
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
0
0
0
1
1
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
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<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
ESE
10
0.7
SE
6
0.8
SSE
6
0.9
SE
6
0.9
SE
7
0.8
SE
7
0.7
S
7
1
SSW
7
1.1
SSW
6
1.5
SSW
7
0.5
SE
10
0.5
SE
10
0.6
SE
11
0.6
ESE
10
0.5
SE
10
0.7
SE
6
0.6
ESE
11
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
Wave Graph
Metric surfscale
Energy kJ
25
38
35
44
60
71
62
45
112
108
198
54
54
72
65
44
34
75
72
68
67
Wind (km/h)
15
S
10
WSW
10
S
10
S
0
N
10
N
10
S
10
W
10
SW
25
SW
20
SW
15
SSW
10
S
5
NNE
10
NE
10
SSE
5
WNW
5
SE
15
S
10
WSW
5
SSE
cross-on
cross-off
cross-on
cross-on
glassy
cross-off
cross-on
cross-off
cross
cross
cross
cross-on
cross-on
glassy
cross
cross-on
cross-off
on
cross-on
cross-off
cross-on
High Tide
7:36PM1.30m
5:45AM1.43m
8:22PM1.24m
6:14AM1.38m
9:20PM1.20m
6:47AM1.30m
10:34PM1.19m
7:31AM1.21m
11:46PM1.22m
8:59AM1.11m
00:36AM1.27m
11:22AM1.06m
1:13AM1.33m
Low Tide
00:21AM0.97m
1:07PM0.24m
00:52AM1.01m
1:48PM0.31m
1:36AM1.05m
2:37PM0.39m
2:55AM1.08m
3:37PM0.47m
5:13AM1.04m
4:50PM0.53m
6:49AM0.92m
6:03PM0.57m
7:38AM0.75m
clear
part cloud
cloud
cloud
light rain
light rain
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:47
4:46
4:45
4:43
4:43
4:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:31
6:32
6:34
6:35
6:35
6:36
6:37
4
2
Temp °C
18
15
18
17
17
17
20
18
22
22
19
19
19
17
20
20
17
21
20
17
20
14
12
17
16
18
17
21
18
20
19
15
15
16
16
17
17
16
18
17
15
18
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
ESE
10
0.7
SE
6
0.8
SSE
6
0.9
SE
6
0.9
SE
7
0.8
SE
7
0.7
S
7
0.8
S
7
0.6
SE
11
0.6
ESE
11
0.6
S
7
0.5
SE
10
0.6
SE
11
0.6
ESE
10
0.5
SE
10
0.7
SE
6
0.6
ESE
11
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
Energy kJ
25
38
35
44
60
71
62
45
56
90
76
39
54
72
65
44
34
75
72
68
67
Swell 2
Height (m)
Direction
Period (s)
0.3
S
7
0.4
SE
4
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
ESE
10
0.4
SE
10
0.6
ESE
8
0.7
SE
10
0.5
SE
10
0.2
SSW
8
0.3
SSW
6
0.3
SW
7
0.1
SW
6
0.4
ESE
9
0.4
SE
5
0.2
ESE
4
0.3
S
4
Energy kJ
9
5
22
20
22
43
27
43
112
54
6
6
7
1
33
7
2
3
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
7
0.3
S
6
0.1
SE
11
0.2
ESE
11
0.1
SE
11
0.4
SE
10
0.2
SSW
8
0.1
S
6
0.2
ESE
11
Energy kJ
4
7
5
12
5
27
6
1
12
Wind waves
Height (m)
Direction
Period (s)
0.3
SE
2
1
SSW
7
1.1
SSW
6
1.5
SSW
7
0.7
WSW
5
0.5
S
7
0.3
E
2
0.6
NE
4
0.8
ESE
6
0.4
SSW
3
0.4
SSW
4
0.5
SW
4
Energy kJ
1
96
108
198
20
27
1
9
43
4
5
8
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
58
111
24
58
0
0
50
0
191
191
450
22
108
0
111
108
50
50
68
67
67
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
1
1
1
2
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
2
1
2
2
2
2
2
3
1
2
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
5
5
5
9
6
8
5
5
5
7
5
5
5
5
4
4
5
5
5
5
9
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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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