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

information circle16 Day Weather and Surf, issued 2 am Saturday 11 Apr 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
20.8° C
(Which is 1.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Kaiser's (Hachijojima Island) this week:

The surf forecast for Kaiser's (Hachijojima Island) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 12) at 12PM. The primary swell is predicted to be 0.7m and 11s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Kaiser's (Hachijojima Island) in the next 16 days are 2.5m 16s and forecast to arrive on Friday (Apr 17) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Saturday (Apr 11) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sun 12th Apr)2.5ft (0.7m) 11s
Best Surf12PM (Sun 12th Apr)2.5ft (0.7m) 11s
Most Powerful 3PM (Fri 17th Apr)8ft (2.5m) 16s

Table - best surf conditions forecast for Kaiser's (Hachijojima Island) over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Sat morning. Warm (max 21°C on Sat morning, min 17°C on Sun morning). Winds decreasing (strong winds from the WSW on Sat morning, calm by Sun afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Wed afternoon, min 17°C on Thu afternoon). Winds increasing (light winds from the ENE on Wed night, strong winds from the NE by Thu night).

Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
1
0
0
1
1
0
0
1
1
1
2
2
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
SE
0.7
SE
0.8
ESE
0.7
SE
0.7
SE
1.2
NE
0.7
ESE
1
ESE
1
ESE
1.1
SE
1.2
SE
1.4
SE
1.6
SSE
1.5
SSE
1.6
SSE
2.3
SSE
2.3
SSE
2.1
SSE
2.5
SSE
2.5
S
2.5
S
Period(s) (?)11111111107101110101214141417161615161616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)115117143115112139812142162344077809698021302275125112027313132583064
Wind
(km/h)
45
WSW
35
WNW
40
WNW
35
WNW
5
WNW
15
ESE
15
ESE
5
ENE
10
E
25
ESE
25
SE
10
ESE
20
ESE
20
E
15
ESE
20
NNE
45
NE
50
NE
45
ENE
35
E
30
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffoffglassononcross-
on
cross-
on
ononononcross-
on
oncrosscrosscross-
on
cross-
on
onon
High Tide
/ height (m)
3:12AM
1.13
12:34PM
1.01
3:26AM
1.19
2:09PM
1.11
3:43AM
1.26
3:09PM
1.24
4:02AM
1.34
4:01PM
1.36
4:23AM
1.40
4:51PM
1.44
4:45AM
1.45
5:41PM
1.49
Low Tide
/ height (m)
6:50PM
0.42
8:25AM
0.94
7:59PM
0.39
8:56AM
0.82
8:50PM
0.37
9:26AM
0.66
9:33PM
0.37
9:59AM
0.48
10:12PM
0.40
10:34AM
0.28
10:50PM
0.46
11:10AM
0.09
11:27PM
0.55
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Sunrise5:16--5:15--5:13--5:13--5:11--5:09--5:09--
Sunset-6:07--6:07--6:07--6:08--6:09--6:09--6:10-
thunderstorm
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
rain showers
part cloud
cloud
Rain (mm)
1-----------------1--
Temp. °C212020171818181818191919192019191718181819
Feels °C (?)16121310181616181716161817181817109111216
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Kaiser's (Hachijojima Island) Surf forecast

The above surf forecast table for Kaiser's (Hachijojima Island) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kaiser's (Hachijojima Island) can be found by selecting the local surf guide option on the grey menu. Our Kaiser's (Hachijojima Island) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kaiser's (Hachijojima Island)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Kaiser's (Hachijojima Island) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Kaiser's (Hachijojima Island) is 191 km (119 miles) from Oshima. If you plan a holiday in Izu Islands, look for hotels and other accommodation in Oshima. Oshima has rooms for a wide range of budgets as well as car hire and transport links.

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