Santos (Hachijojima Island) surfForecast / Izu Islands / Japan

information circle48hr Weather and Surf, issued 2 am Sunday 31 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
23.4° C
(Which is 1.0°C warmer than normal for this time of year)

How big are the waves at Santos (Hachijojima Island) today (31 May):

  • Morning surf: Morning surf (31 May, local time) - 2.5ft (0.8m), 12s period with S swell.
  • Afternoon surf: Afternoon surf (31 May, local time) - 3.5ft (1.1m), 12s period with S swell.
  • Evening surf: Evening surf (31 May, local time) - 4ft (1.2m), 11s period with S swell.

The current surf forecast for Santos (Hachijojima Island) at 11AM is: 1.0m 12s primary swell from a South direction and 0.9m 10s secondary swell from a East direction (forecast issued at 02:00am May 31). The wind direction is predicted to be offshore and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (31 May)2.5ft (0.8m)12s
Afternoon (31 May)3.5ft (1.1m)12s
Evening (31 May)4ft (1.2m)11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 15mm), heaviest on Tue night. Warm (max 23°C on Sun morning, min 18°C on Sun afternoon). Winds increasing (calm on Sun morning, near gales from the ESE by Tue night).

Sunday
31
Monday
1
Tuesday
2
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
1
2
2
2
2
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.9
E
10
1
ESE
10
0.7
S
14
0.8
S
12
1
S
12
1.1
S
12
1.2
S
11
1.2
S
11
1.2
S
11
1.1
S
11
1
S
11
1
S
10
1
S
12
1
S
10
1
S
11
0.8
E
10
0.7
E
10
1.8
SSW
13
1.9
SSW
13
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
9
1.1
SE
6
Wave Graph
Metric surfscale
Energy kJ
171
222
181
190
285
327
357
350
344
284
227
214
271
196
227
115
90
1012
1274
88
88
88
87
85
Wind (km/h)
15
WSW
15
W
15
WSW
10
SW
5
SW
15
SW
20
SSE
30
SSE
15
SE
5
SE
5
E
15
E
15
ESE
20
ESE
25
ESE
25
ESE
30
SE
25
ESE
30
ESE
20
SE
25
SE
25
SSE
25
SSE
25
SSE
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross-on
cross-on
on
cross-on
on
on
on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
4:05AM1.49m
6:27PM1.38m
4:35AM1.46m
7:02PM1.38m
5:06AM1.44m
7:37PM1.37m
Low Tide
10:41PM0.97m
11:22AM0.14m
11:18PM0.97m
11:54AM0.11m
11:52PM0.96m
12:27PM0.11m
cloud
cloud
cloud
cloud
cloud
cloud
light rain
part cloud
clear
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:33
4:33
4:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:43
6:44
1
Temp °C
23
23
23
23
23
22
18
19
19
19
19
20
20
21
21
21
21
21
21
21
21
21
22
22
22
21
23
24
25
18
15
14
18
20
20
19
18
19
18
18
18
18
18
20
19
19
21
20
Swell 1
Height (m)
Direction
Period (s)
0.9
E
10
1
ESE
10
0.9
E
10
0.9
E
10
1
S
12
1.1
S
12
1.2
S
11
1.2
S
11
1.2
S
11
1.1
S
11
1
S
11
1
S
10
1
S
12
1.2
SSW
13
1
S
11
1.6
SSW
13
1.3
SSW
12
1.8
SSW
13
1.9
SSW
13
1.7
SW
13
1.7
SW
13
1.8
SW
13
1.4
SW
12
1.7
SW
13
Energy kJ
171
222
162
159
285
327
357
350
344
284
227
214
271
472
227
812
477
1012
1274
1011
996
1034
578
961
Swell 2
Height (m)
Direction
Period (s)
0.7
WSW
7
0.6
WSW
7
0.7
S
14
0.8
S
12
0.9
E
10
0.9
E
10
0.9
E
10
0.8
E
10
0.8
E
10
0.8
E
10
0.8
SSW
16
0.9
SSW
15
0.9
SSW
14
1
S
10
1
SSW
13
0.8
E
10
1
SW
15
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.7
E
10
1.1
SW
15
0.7
E
9
Energy kJ
41
30
181
190
162
159
162
125
125
125
314
353
352
196
346
115
424
90
90
88
88
88
472
85
Swell 3
Height (m)
Direction
Period (s)
0.4
SSE
6
0.4
SSW
16
0.5
WSW
7
0.5
WSW
6
0.4
WSW
6
0.3
SE
12
0.4
WSW
7
0.4
WSW
7
0.3
WSW
7
0.6
SSW
16
0.8
E
10
0.8
E
10
0.8
E
10
0.8
E
10
0.8
E
10
0.3
SE
11
0.7
E
10
0.3
SE
12
0.3
SE
12
0.3
SE
11
0.3
SE
11
0.3
SE
12
0.7
E
9
0.3
SE
11
Energy kJ
10
80
25
23
16
22
15
17
9
162
125
122
120
117
117
20
90
21
21
19
19
21
87
19
Wind waves
Height (m)
Direction
Period (s)
0.2
WNW
5
0.2
WNW
4
0.2
WNW
4
0.5
WSW
6
0.6
ESE
4
0.8
SE
4
0.8
SE
5
0.9
SE
5
1
SE
5
1.1
SE
5
1.1
SE
5
1.1
SE
5
1.1
SE
6
Energy kJ
2
2
2
23
8
20
26
36
49
60
71
73
77
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
2
2
2
2
2
2
2
3
2
2
3
3
4
3
3
3
4
4
4
4
Distance (km)
196
152
0
0
0
152
196
515
196
196
196
152
196
196
196
196
152
196
196
196
227
227
196
196
Best forecast wave conditions in Izu Islands
Rating
(10 max)
2
2
2
2
2
3
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
2
2
3
2
2
3
3
3
4
2
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
6
8
7
7
7
7
7
6
6
5
5
5
5
5
5
4
4
4
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)
Map placeholder

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