Kaiser's (Hachijojima Island) surfForecast / Izu Islands / Japan

information circle48hr Weather and Surf, issued 8 pm Monday 18 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Kaiser's (Hachijojima Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kaiser's (Hachijojima Island) sea temperature is
23.5° C
(Which is 1.8°C warmer than normal for this time of year)

How big are the waves at Kaiser's (Hachijojima Island) today?

The current surf forecast for Kaiser's (Hachijojima Island) at 2AM is: 0.8m 9s primary swell from a East direction and 0.7m 9s secondary swell from a Southeast direction (forecast issued at 08:00pm May 18). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (19 May)2.5ft (0.8m)11s
Afternoon (19 May)3ft (0.9m)11s
Evening (19 May)4ft (1.2m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 11mm), heaviest on Wed night. Warm (max 24°C on Wed night, min 20°C on Mon night). Winds increasing (light winds from the SSE on Mon night, strong winds from the SW by Thu morning).

Mon
18
Tuesday
19
Wednesday
20
Thursday
21
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
Rating
(10 max)
0
0
0
1
1
0
0
0
0
0
1
1
2
2
2
1
0
0
1
0
0
0
0
0
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1
E
8
0.9
E
8
0.7
SE
9
0.9
E
10
0.9
E
9
0.8
SE
11
0.8
SE
10
0.9
SE
11
1
SE
10
1.2
ESE
10
1.2
SE
10
1.2
SE
10
1.2
SE
10
1.2
ESE
10
1.2
ESE
10
1.2
ESE
10
1.2
ESE
10
1
ESE
9
1
ESE
9
1
ESE
9
0.9
ESE
10
1.8
SSW
6
0.9
ESE
10
0.8
ESE
10
Wave Graph
Metric surfscale
Energy kJ
140
112
78
146
132
134
150
191
185
267
292
286
286
256
251
246
241
184
184
168
142
223
132
105
Wind (km/h)
10
SE
15
SE
15
SSE
10
SSE
10
SSE
10
SSE
10
S
15
SSW
20
SSW
20
SSW
20
SW
20
SW
15
SW
15
SW
10
SW
15
SSW
15
SSW
15
SSW
25
SW
35
SW
40
SW
45
SSW
45
SW
45
SW
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
7:30PM1.44m
5:33AM1.47m
8:21PM1.36m
6:10AM1.44m
9:13PM1.27m
6:53AM1.40m
Low Tide
00:24AM0.92m
1:00PM-0.25m
00:59AM0.97m
1:49PM-0.13m
1:33AM1.00m
2:42PM0.04m
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
part cloud
cloud
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:39
4:37
4:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:34
6:35
6:36
6:36
1
2
3
2
1
1
Temp °C
21
21
21
20
21
21
22
22
22
22
22
22
22
22
23
23
23
23
24
24
24
24
24
24
22
21
21
21
22
22
23
22
21
21
21
21
22
23
25
25
24
24
24
22
21
19
20
21
Swell 1
Height (m)
Direction
Period (s)
1
E
8
0.9
E
8
0.7
E
8
0.9
E
10
0.9
E
9
0.8
E
9
0.8
E
9
0.9
SE
11
1
SE
10
1.2
ESE
10
1.2
SE
10
1.2
SE
10
1.2
SE
10
1.2
ESE
10
1.2
ESE
10
1.2
ESE
10
1.2
ESE
10
1
ESE
9
1
ESE
9
1
ESE
9
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.8
ESE
10
Energy kJ
140
112
63
146
132
108
103
191
185
267
292
286
286
256
251
246
241
184
184
168
142
145
132
105
Swell 2
Height (m)
Direction
Period (s)
0.4
NE
10
0.6
SE
9
0.7
SE
9
0.7
SE
9
0.7
SE
11
0.8
SE
11
0.8
SE
10
0.8
E
10
0.7
E
10
0.3
NE
9
0.3
NE
9
0.4
NE
9
0.4
NE
10
0.4
NE
10
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
8
0.3
NE
8
0.3
NE
8
0.2
ENE
8
Energy kJ
33
68
78
78
110
134
150
115
98
12
12
30
32
33
31
29
29
28
27
27
18
11
10
6
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
NE
10
0.5
E
10
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.4
NE
9
0.3
NE
11
0.3
NE
11
0.1
S
8
0.1
S
8
0.1
S
8
0.1
S
8
0.1
S
8
0.2
S
6
0.2
SSW
6
0.1
N
12
0.1
NE
12
Energy kJ
37
33
48
31
29
29
29
29
29
19
19
1
1
1
1
1
3
4
3
6
Wind waves
Height (m)
Direction
Period (s)
0.2
SSW
2
0.6
SSW
3
1
SSW
4
1.6
SSW
5
1.8
SSW
6
2.2
SSW
7
2.3
SW
7
Energy kJ
1
7
41
138
223
431
513
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
1
2
2
3
Distance (km)
152
195
195
195
152
195
516
516
195
195
195
152
0
0
0
152
195
152
195
195
195
152
152
152
Best forecast wave conditions in Izu Islands
Rating
(10 max)
1
1
1
2
2
2
1
1
2
2
3
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
1
2
2
2
2
2
2
2
3
Header Global
Rating
(10 max)
4
4
4
5
4
4
4
4
4
4
4
4
4
4
5
5
4
4
4
5
5
5
4
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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