Kaiser's (Hachijojima Island) Surf Break

Lat Long: 33.07° N 139.84° E

Kaiser's (Hachijojima Island) 48 hour detailed Surf Forecast

Issued: 8 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kaiser's (Hachijojima Island) sea temperature is
28.2°C
1.2° 

Kaiser's (Hachijojima Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Kaiser's (Hachijojima Island) today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 25ft (7.5m), 13s period with SSE swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 31ft (9.5m), 13s period with S swell.
  • Evening surf: Evening surf (21 Sep, local time) - 2ft (0.6m), 10s period with E swell.

The current surf forecast for Kaiser's (Hachijojima Island) at 11AM is: 8.0m 13s primary swell from a South-southeast direction (forecast issued at 08:00am September 21). The wind direction is predicted to be cross-onshore and the swell rating is 11.

Time (JST) & DateWave HeightWave Period
Morning (21 Sep)25ft (7.5m)13s
Afternoon (21 Sep)31ft (9.5m)13s
Evening (21 Sep)2ft (0.6m)10s

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


Short Range Forecast

Heavy rain (total 39mm), heaviest during Mon night. Warm (max 28°C on Mon morning, min 26°C on Mon night). Winds decreasing (stormy winds from the S on Mon afternoon, light winds from the S by Tue night).

Monday
21
Tuesday
22
Wednesday
23
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
1
0
0
2
1
0
1
2
1
1
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
7
SSE
12
7.5
SSE
13
8.5
S
13
9.5
S
13
8
SSW
13
0.6
E
10
2.2
S
9
2
S
9
2
S
8
1.7
S
8
0.4
ENE
10
1.4
S
7
1.2
S
7
1
NNE
8
1
NNE
8
1.1
NNE
9
1.2
NNE
9
1.2
NNE
9
1.1
NE
8
1.1
NE
8
1.1
NE
8
1.2
NE
8
Wave Graph
Metric surfscale
Energy kJ
15677
17789
23933
30452
0
71
810
623
552
377
30
215
146
137
137
181
197
197
162
180
171
196
Wind (km/h)
70
SE
80
SE
85
SSE
100
S
95
WSW
75
WSW
50
WSW
45
W
35
WSW
30
WSW
20
W
15
W
10
WSW
10
SSW
10
SW
10
SW
5
S
10
SE
10
SE
10
ESE
10
SE
10
S
Wind State
on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
cross-off
cross
cross-off
cross-off
cross-on
cross-on
on
on
on
cross-on
High Tide
4:04PM1.38m
1:08AM1.30m
4:12PM1.45m
2:22AM1.40m
4:25PM1.51m
Low Tide
7:45AM0.59m
8:57PM1.21m
8:41AM0.51m
9:19PM1.11m
9:23AM0.46m
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
heavy rain
rain showers
part cloud
part cloud
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:28
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:37
5:37
 mm
2
1
4
6
12
15
1
Temp °C
28
28
27
27
27
27
27
26
26
26
26
26
26
26
26
26
26
26
26
26
27
27
Feels °C
21
19
17
15
16
18
23
22
24
25
27
27
27
27
27
28
28
28
27
27
29
29
  • 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
How to use the Wavefinder 

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