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

information circle12 Day Weather and Surf, issued 2 pm Tuesday 08 Jul 2025 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
27.9° C
(Which is 1.9°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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 12) at 3AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 1.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kaiser's (Hachijojima Island) in the next 12 days are 3.0m 11s and forecast to arrive on Tuesday (Jul 15) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 9s period and expected on Tuesday (Jul 15) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sat 12th Jul)4.5ft (1.3m) 8s
Best Surf 3AM (Sat 12th Jul)4.5ft (1.3m) 8s
Most Powerful12PM (Tue 15th Jul)10ft (3.0m) 11s

Table - best surf conditions forecast for Kaiser's (Hachijojima Island) over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Tue
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sun
20
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
ENE
0.5
SE
0.5
SE
0.5
SE
0.6
ESE
0.6
ESE
0.8
ESE
1.1
SE
1.3
ESE
1.4
ESE
1.3
ESE
1.3
NNE
1.2
ESE
1.2
ESE
1.3
SE
1.3
SE
0.9
E
1
SE
1.4
ESE
1.1
ESE
2.2
ESE
3
SE
3
ESE
4
ESE
3
ESE
2.2
ESE
2.5
ESE
3.5
ESE
4
SE
4.5
SE
4.5
SE
3.5
SE
2.5
SE
2.3
SE
2.1
SE
1.9
SE
Period(s) (?)9111111111111888888898910991110111211101111111111109898
Wave
Graph
(?)Metric surfscale
Energy (?)1831561101451421591861932122702434264493612992822432943713661376163424164465223518211738273036644833433319521070768696717
Wind
(km/h)
25
S
20
SSE
20
ESE
20
SE
20
SE
20
ESE
20
SE
15
ESE
30
ENE
30
ENE
10
SE
15
NE
15
ENE
10
NE
15
N
0
NW
15
SW
15
SE
20
SSE
35
S
40
S
30
SSE
20
SSE
40
SSE
50
SSE
50
SE
60
SSE
55
SSE
45
SE
40
SE
35
SE
35
ESE
35
ESE
30
ESE
30
E
35
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
ononcross-
on
onononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
off
glasscross-
off
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
ononononononon
High Tide
/ height (m)
5:31PM
1.35
3:07AM
1.34
6:02PM
1.38
3:52AM
1.37
6:30PM
1.40
4:33AM
1.42
6:57PM
1.42
5:13AM
1.47
7:26PM
1.44
5:53AM
1.51
7:55PM
1.46
6:34AM
1.51
8:25PM
1.47
7:19AM
1.47
8:56PM
1.47
8:11AM
1.39
9:27PM
1.45
9:15AM
1.28
9:59PM
1.43
10:40AM
1.15
10:32PM
1.41
12:58PM
1.09
11:12PM
1.38
Low Tide
/ height (m)
10:17PM
1.06
10:40AM
0.08
10:54PM
1.01
11:15AM
0.01
11:26PM
0.96
11:50AM
-0.01
11:56PM
0.92
12:24PM
0.00
12:28AM
0.89
12:59PM
0.06
1:04AM
0.87
1:34PM
0.17
1:47AM
0.85
2:11PM
0.30
2:36AM
0.82
2:48PM
0.47
3:36AM
0.76
3:26PM
0.64
4:46AM
0.66
4:09PM
0.81
6:04AM
0.52
5:03PM
0.97
7:20AM
0.34
Tue
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sun
20
Sunrise--4:37--4:39--4:39--4:39--4:41--4:41--4:41--4:41--4:43--4:43--4:43--4:45
Sunset6:52--6:52--6:52--6:52--6:51--6:51--6:51--6:50--6:50--6:49--6:49--6:47--
clearclearclearclearthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm mod rainthunderstorm thunderstorm clearrain showersclearclearclearpart cloudpart cloudthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm part cloudclearclearclearclearclearthunderstorm thunderstorm
Rain (mm)
----2411426162-1-----1338775633------22
Temp. °C282728282828282827272626272726272728282828282828272827272828282727282827
Feels °C (?)293030303030303127272828293028302930302928293027242622232526272625282825

Short Range Forecast: Heavy rain (total 23mm), heaviest during Thu night. Warm (max 28°C on Tue afternoon, min 27°C on Tue night). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 25mm), heaviest during Fri night. Warm (max 28°C on Mon morning, min 26°C on Fri night). Winds decreasing (fresh winds from the ENE on Fri afternoon, calm by Sun afternoon).

Days 6-9 Weather Summary Heavy rain (total 70mm), heaviest during Tue morning. Warm (max 28°C on Mon afternoon, min 26°C on Thu morning). Winds increasing (moderate winds from the SSE on Mon afternoon, near gales from the SSE by Thu morning).

Long Range Forecast: Light rain (total 8mm), mostly falling on Thu afternoon. Warm (max 28°C on Thu night, min 24°C on Sun afternoon). Winds decreasing (near gales from the SSE on Thu afternoon, fresh winds from the ESE by Sat afternoon).

  • 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 12 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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