Kaiser's (Hachijojima Island) Surf Break

Lat Long: 33.07° N 139.84° E

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

Issued: 2 am 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kaiser's (Hachijojima Island) sea temperature is
28.7° C
1.0° 

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 (10 Aug):

  • Morning surf: Morning surf (10 Aug, local time) - 7.5ft (2.3m), 12s period with E swell.
  • Afternoon surf: Afternoon surf (10 Aug, local time) - 8ft (2.5m), 12s period with ENE swell.
  • Evening surf: Evening surf (10 Aug, local time) - 8ft (2.5m), 11s period with ENE swell.

The current surf forecast for Kaiser's (Hachijojima Island) at 8AM is: 2.3m 12s primary swell from a East direction and 0.8m 4s secondary swell from a North-northeast direction (forecast issued at 02:00am August 10). An open ocean swell of 1.5m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (10 Aug)7.5ft (2.3m)12s
Afternoon (10 Aug)8ft (2.5m)12s
Evening (10 Aug)8ft (2.5m)11s

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


Short Range Forecast

Heavy rain (total 23mm), heaviest during Tue night. Warm (max 27°C on Mon morning, min 25°C on Mon night). Winds increasing (calm on Tue afternoon, fresh winds from the SE by Wed morning).

Monday
10
Tuesday
11
Wednesday
12
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)
2
2
1
1
1
1
1
1
1
1
1
1
4
4
2
1
1
2
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
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
E
12
2
E
12
2.3
E
12
2.3
E
12
2.5
ENE
12
2.5
ENE
12
2.5
ENE
11
2.5
ENE
11
2.5
ENE
10
2.5
ENE
10
2.5
ENE
10
2
ENE
10
2
ENE
11
1.9
ENE
11
1.8
ENE
11
1.7
ENE
11
1.6
ENE
11
2.3
NE
11
1.9
NE
11
1.5
NNE
10
1.4
NE
10
1.2
NE
10
1
NE
9
0.9
NE
9
Wave Graph
Metric surfscale
Energy kJ
1039
1198
1544
1494
1706
1689
1492
1539
1231
1205
1229
803
984
858
759
744
631
1293
844
485
384
257
162
115
Wind (km/h)
15
NNE
25
NNE
30
NNE
30
NNE
30
NNE
30
NNE
35
NNE
35
NE
30
NNE
30
NNE
35
NNE
25
NNE
10
N
5
WSW
20
SSW
30
SSW
25
SSW
15
SSE
20
SE
35
SE
30
SE
25
SE
20
ESE
15
E
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
glassy
cross
cross
cross
cross-on
cross-on
on
cross-on
on
on
cross-on
High Tide
1:26AM1.30m
5:04PM1.36m
2:48AM1.38m
5:36PM1.42m
3:50AM1.48m
6:05PM1.47m
Low Tide
9:23AM-0.01m
9:49PM1.04m
10:14AM-0.07m
10:32PM0.96m
11:01AM-0.06m
part cloud
clear
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
5:00
5:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:30
6:30
 mm
1
1
7
6
3
1
1
1
1
Temp °C
26
26
27
27
27
27
27
27
27
26
25
25
26
25
26
26
26
26
27
26
27
27
27
27
Feels °C
27
26
26
25
26
25
25
24
25
23
22
23
27
27
26
24
25
27
27
23
25
26
28
28
  • 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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