Sakawa River surfForecast / Kanagawa / Japan

information circle16 Day Weather and Surf, issued 8 pm Friday 01 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
18.9° 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 Saturday (May 02) at 6AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.8m and 7s. 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 3.0m 8s and forecast to arrive on Monday (May 04) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Saturday (May 02) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 2nd May)3ft (0.9m) 11s
Best Surf 6AM (Sat 2nd May)3ft (0.9m) 11s
Most Powerful 9AM (Mon 4th May)10ft (3.0m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 32mm), heaviest during Mon morning. Warm (max 22°C on Sun afternoon, min 14°C on Fri night). Winds increasing (calm on Sat afternoon, strong winds from the SW by Sun night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Thu afternoon, min 16°C on Mon night). Wind will be generally light.

Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Fri
8
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
0
0
0
0
0
2
0
0
0
0
0
1
0
0
1
1
0
Swell
Height Map
<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>
<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)
2.1
SW
6
0.7
SW
11
0.4
SW
10
0.4
ESE
9
0.4
ESE
10
0.4
ESE
9
1.3
SSW
6
3
SSW
8
2.1
SSW
9
1.7
SSW
8
0.6
SSW
9
0.4
SE
10
0.4
SE
10
0.4
SE
9
0.8
SSE
5
0.8
SSE
6
0.5
SE
11
0.8
SE
7
0.5
SE
10
0.8
SE
10
0.7
SE
10
Wave Graph
Metric surfscale
Energy kJ
292
117
37
32
36
35
106
1156
660
379
56
25
25
22
33
44
55
65
52
127
112
Wind (km/h)
35
WSW
10
SSW
10
E
5
N
5
SSE
30
SW
30
SW
35
SW
25
SW
10
W
10
ENE
10
S
5
WNW
5
S
15
SSE
5
N
5
S
15
S
10
WSW
5
SSE
15
SSW
cross-off
cross
cross-on
glassy
glassy
cross
cross
cross
cross
cross-off
cross-on
cross-on
glassy
glassy
on
glassy
cross-on
cross-on
cross-off
glassy
cross-on
High Tide
4:05AM1.47m
5:43PM1.43m
4:28AM1.48m
6:19PM1.40m
4:52AM1.48m
6:56PM1.36m
5:18AM1.46m
7:36PM1.30m
5:45AM1.43m
8:22PM1.24m
6:14AM1.38m
9:20PM1.20m
6:47AM1.30m
Low Tide
10:32PM0.79m
10:55AM0.14m
11:01PM0.84m
11:25AM0.12m
11:28PM0.89m
11:57AM0.13m
11:54PM0.93m
12:30PM0.17m
00:21AM0.97m
1:07PM0.24m
00:52AM1.01m
1:48PM0.31m
1:36AM1.05m
2:37PM0.39m
clear
clear
clear
part cloud
clear
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:50
4:50
4:48
4:48
4:47
4:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:29
6:30
6:30
6:30
6:31
6:32
6:34
18
14
Temp °C
15
21
21
20
20
22
22
22
21
18
19
19
17
19
19
16
20
21
18
22
22
7
19
20
19
17
18
16
18
18
15
16
16
18
18
17
17
18
19
17
21
20
Swell 1
Height (m)
Direction
Period (s)
1
SE
9
0.7
SW
11
0.5
SSE
8
0.4
SSW
8
0.4
ESE
10
0.4
ESE
9
0.4
ESE
9
0.3
ESE
10
0.3
ESE
11
0.4
SE
10
0.6
S
8
0.4
S
7
0.4
SSE
4
0.4
SE
9
0.4
SE
9
0.8
SSE
6
0.7
SE
7
0.8
SE
7
0.7
SE
7
0.8
SE
10
0.7
SE
10
Energy kJ
145
117
37
24
36
35
34
19
22
27
40
15
6
22
21
37
44
65
52
127
112
Swell 2
Height (m)
Direction
Period (s)
0.6
SSE
8
0.5
S
7
0.4
SW
10
0.4
ESE
9
0.3
SSW
6
0.2
E
4
0.6
SSW
9
0.4
SE
10
0.4
SE
10
0.1
SE
11
0.1
SE
11
0.4
ESE
11
0.5
SE
11
0.5
SE
11
0.5
SE
10
Energy kJ
47
23
35
32
8
1
56
25
25
5
5
44
55
56
52
Swell 3
Height (m)
Direction
Period (s)
0.5
SE
8
0.2
E
9
0.2
ESE
3
0.4
SE
10
0.4
SW
9
0.3
S
7
0.2
WSW
7
0.1
SW
7
0.3
SE
8
0.4
SE
11
Energy kJ
35
7
1
27
21
8
5
2
10
30
Wind waves
Height (m)
Direction
Period (s)
2.1
SW
6
0.6
SSW
3
1.3
SSW
6
3
SSW
8
2.1
SSW
9
1.7
SSW
8
0.6
S
4
0.6
SSE
5
0.8
SSE
5
0.3
S
2
0.4
SW
3
0.6
SW
4
0.9
SSW
4
Energy kJ
292
8
106
1156
660
379
12
20
33
1
2
8
28
Nearest Offshore or Glassy
Rating
(10 max)
1
4
1
2
1
1
4
3
4
2
2
1
1
1
1
1
1
1
1
1
1
Distance (km)
450
89
41
50
50
907
718
433
433
0
66
58
114
67
114
0
50
114
0
0
433
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
2
1
2
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
4
4
2
2
4
4
4
2
3
1
1
1
1
1
1
2
2
2
1
Header Global
Rating
(10 max)
6
5
5
4
4
4
4
4
4
5
5
5
5
7
7
8
5
5
5
6
5
  • 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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