Santos (Hachijojima Island) surfForecast / Izu Islands / Japan

information circle48hr Weather and Surf, issued 2 am Monday 04 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Santos (Hachijojima Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Santos (Hachijojima Island) sea temperature is
22.8° C
(Which is 2.2°C warmer than normal for this time of year)

How big are the waves at Santos (Hachijojima Island) today?

The current surf forecast for Santos (Hachijojima Island) at 8AM is: 0.6m 10s primary swell from a East-southeast direction and 0.1m 10s secondary swell from a Northeast direction (forecast issued at 02:00am May 04). An open ocean swell of 3.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (04 May)2ft (0.6m)10s
Afternoon (04 May)2ft (0.6m)10s
Evening (04 May)1.5ft (0.5m)10s

Table - waves today at Santos (Hachijojima Island). (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 62mm), heaviest during Wed night. Warm (max 22°C on Mon morning, min 17°C on Mon night). Winds decreasing (gales from the SW on Mon morning, light winds from the N by Tue morning).

Monday
4
Tuesday
5
Wednesday
6
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
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><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)
0.6
ESE
9
0.6
ESE
9
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.7
ESE
10
1.2
ENE
10
1.6
NE
7
1.2
ESE
10
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
Wave Graph
Metric surfscale
Energy kJ
66
68
71
74
77
77
77
56
56
56
55
54
83
253
260
241
78
76
75
75
73
73
71
71
Wind (km/h)
55
SSW
55
SSW
60
SSW
60
SW
60
WSW
50
WSW
55
WSW
55
W
50
WNW
45
WNW
35
NW
10
N
25
E
25
ESE
25
ESE
25
SE
25
ESE
25
ESE
25
SE
25
ESE
30
SSE
15
SSE
25
SSE
25
SE
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
on
on
on
on
on
on
cross-on
on
cross-on
cross-on
cross-on
on
High Tide
5:26AM1.47m
7:38PM1.34m
5:49AM1.43m
8:18PM1.29m
6:15AM1.37m
Low Tide
00:00AM0.89m
12:36PM0.14m
00:29AM0.92m
1:08PM0.17m
00:59AM0.94m
1:43PM0.22m
part cloud
cloud
cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:50
4:50
4:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
6:24
6:24
4
5
1
1
2
3
5
4
Temp °C
20
22
23
22
21
21
21
19
17
17
17
17
17
18
18
18
19
18
18
17
18
18
18
19
12
14
15
14
13
14
12
8
7
9
10
15
13
13
13
13
15
14
15
13
14
17
16
17
Swell 1
Height (m)
Direction
Period (s)
0.6
ESE
9
0.6
ESE
9
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
1.9
WSW
9
1.6
WSW
8
1.5
W
8
1.6
NE
7
1.2
NNE
7
0.8
NNE
6
0.7
ESE
9
0.7
ESE
9
0.9
ESE
5
0.9
ESE
5
0.8
ESE
5
0.7
ESE
9
0.7
ESE
9
Energy kJ
66
68
71
74
77
77
77
56
56
56
55
547
367
291
260
131
51
76
75
48
37
30
71
71
Swell 2
Height (m)
Direction
Period (s)
0.2
NNE
10
0.1
NE
10
0.1
NE
10
0.1
NE
10
0.5
ESE
10
1.1
NW
7
0.4
NE
7
1.1
WSW
8
0.9
WSW
8
0.8
WSW
8
0.6
WSW
8
0.6
WSW
7
0.7
ESE
9
0.7
ESE
9
0.7
ESE
9
0.3
WSW
7
0.2
WSW
7
Energy kJ
10
4
4
4
54
118
13
163
105
77
44
43
75
73
73
9
4
Swell 3
Height (m)
Direction
Period (s)
0.1
N
10
0.1
N
9
0.1
N
9
0.4
SSE
6
0.7
ESE
10
0.4
SSE
6
0.5
NW
7
0.4
NW
7
0.7
ESE
9
0.7
NNE
6
0.4
NNE
6
0.5
WSW
7
0.4
WSW
7
0.4
WSW
7
0.1
NE
9
0.1
N
8
Energy kJ
2
2
1
14
83
13
22
11
78
31
13
30
16
15
3
1
Wind waves
Height (m)
Direction
Period (s)
2.4
SSW
7
3
SW
7
3
SW
8
3.5
SW
8
4.5
WSW
9
4
WSW
10
4
WSW
10
4
W
10
3.5
W
9
3
W
9
3
W
9
1.2
NW
7
1.2
ENE
10
0.7
ESE
10
1.2
ESE
10
1.2
ESE
5
1.1
SE
5
0.9
ESE
5
1
ESE
5
0.9
ESE
5
0.9
ESE
5
Energy kJ
486
798
1087
1679
3082
3346
3009
3126
1884
1561
1169
156
253
81
241
72
69
47
56
41
42
Nearest Offshore or Glassy
Rating
(10 max)
2
5
3
2
4
4
1
3
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
737
497
494
480
480
510
494
249
249
237
240
0
191
191
249
249
227
263
227
227
227
227
227
152
Best forecast wave conditions in Izu Islands
Rating
(10 max)
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
3
5
4
4
4
4
1
4
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
5
4
4
4
4
4
5
5
5
5
5
4
5
5
5
5
5
5
5
5
5
5
8
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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