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 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kaiser's (Hachijojima Island) sea temperature is
28.4°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 (18 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 8ft (2.5m), 8s period with NNE swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 10ft (3.0m), 8s period with NE swell.
  • Evening surf: Evening surf (18 Sep, local time) - 7.5ft (2.3m), 13s period with SE swell.

The current surf forecast for Kaiser's (Hachijojima Island) at 2PM is: 3.0m 8s primary swell from a Northeast direction and 0.6m 14s secondary swell from a Southeast direction, 0.4m 11s secondary swell from a Southeast direction (forecast issued at 08:00am September 18). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Sep)8ft (2.5m)8s
Afternoon (18 Sep)10ft (3.0m)8s
Evening (18 Sep)7.5ft (2.3m)13s

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


Short Range Forecast

Heavy rain (total 198mm), heaviest during Sat night. Warm (max 28°C on Sun morning, min 25°C on Sat night). Winds increasing (fresh winds from the E on Fri night, stormy winds from the E by Sun night).

Friday
18
Saturday
19
Sunday
20
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
0
0
0
0
0
0
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)
3
NNE
8
2.5
NNE
8
3
NNE
8
3
NE
8
3
NE
8
2.3
SE
13
3
SE
13
4.5
SE
16
4.5
SE
14
4.5
SE
14
4.5
SE
13
4.5
SE
13
4.5
ESE
12
4.5
ESE
12
4.5
ESE
12
4.5
ESE
12
5
ESE
12
5
ESE
12
5.5
SE
12
6
SE
12
4.5
SSE
13
7.5
SE
13
Wave Graph
Metric surfscale
Energy kJ
1093
866
1056
1279
1216
1876
2760
8994
9144
8050
6528
5943
5956
5153
5567
5911
6973
6802
7704
10933
6629
19766
Wind (km/h)
50
NE
45
NE
45
NE
45
NE
45
NE
45
NE
35
ENE
30
E
35
ENE
40
ENE
40
ENE
40
ENE
40
E
40
ESE
45
E
50
ENE
55
ENE
55
E
55
ESE
55
ESE
60
ESE
65
E
Wind State
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
on
on
on
High Tide
10:32AM1.22m
7:46PM1.50m
8:05PM1.41m
4:38PM1.33m
Low Tide
3:12AM0.63m
1:23PM1.18m
4:27AM0.67m
6:19AM0.65m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:44
5:42
5:40
 mm
1
1
1
1
1
2
3
2
5
1
2
4
6
7
7
44
13
4
3
2
2
Temp °C
26
26
26
26
27
26
27
27
26
27
27
27
27
25
25
26
25
27
28
28
28
28
Feels °C
22
22
22
22
23
23
25
26
24
25
25
25
25
23
21
22
20
23
24
25
23
22
  • 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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