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Kaiser's (Hachijojima Island) surfForecast / Izu Islands / Japan
16 Day Weather and Surf, issued 2 pm Wednesday 13 May 2026 JSTForecast 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
23.4° C
(Which is 2.1°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 Monday (May 18) at 6AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.2m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kaiser's (Hachijojima Island) in the next 16 days are 3.0m 8s and forecast to arrive on Sunday (May 17) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Monday (May 18) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 18th May) | 4.5ft (1.3m) 8s |
| Best Surf | 6AM (Mon 18th May) | 4.5ft (1.3m) 8s |
| Most Powerful | 3PM (Sun 17th May) | 10ft (3.0m) 8s |
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 ForecastHeavy rain (total 36mm), heaviest during Wed night. Warm (max 21°C on Wed afternoon, min 20°C on Wed night). Winds increasing (light winds from the ENE on Wed night, fresh winds from the ENE by Fri morning). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Sat night. Warm (max 21°C on Sun afternoon, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wed 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
E 9 | E 10 | E 9 | E 9 | E 9 | ENE 9 | ENE 6 | ENE 6 | E 7 | E 7 | E 7 | ESE 9 | ENE 8 | SE 9 | ESE 9 | ESE 9 | E 9 | SE 8 | SE 9 | ESE 10 | ESE 10 | |
505 | 561 | 388 | 417 | 469 | 442 | 208 | 109 | 271 | 303 | 338 | 750 | 1479 | 380 | 146 | 173 | 101 | 129 | 144 | 267 | 246 | |
Wind (km/h) | |||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | |
High Tide | 2:57AM1.38m | 3:56PM1.35m | 3:26AM1.43m | 4:53PM1.44m | 3:55AM1.46m | 5:47PM1.49m | 4:26AM1.48m | 6:39PM1.49m | 4:59AM1.48m | 7:30PM1.44m | 5:33AM1.47m | 8:21PM1.36m | 6:10AM1.44m | ||||||||
Low Tide | 8:43PM0.64m | 9:27AM0.36m | 9:35PM0.68m | 10:09AM0.12m | 10:23PM0.74m | 10:50AM-0.09m | 11:07PM0.80m | 11:32AM-0.23m | 11:48PM0.87m | 12:15PM-0.29m | 00:24AM0.92m | 1:00PM-0.25m | 00:59AM0.97m | ||||||||
 |  | | | | | | |  | |  |  | |  |  | |  | | | | | |
 | — | — | 4:41 | — | — | 4:41 | — | — | 4:41 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:37 |
 | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 6:32 | — | — | 6:32 | — | — | 6:34 | — | — | 6:35 | — | 6:36 |
2 | 12 | 6 | 5 | 5 | 2 | 3 | 1 | — | — | 9 | 2 | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 21 | 21 |
20 | 20 | 18 | 16 | 16 | 14 | 15 | 16 | 16 | 16 | 18 | 18 | 19 | 20 | 20 | 22 | 21 | 20 | 21 | 18 | 20 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 10 | E 9 | NE 10 | NE 10 | ESE 9 | ESE 9 | ENE 9 | ESE 9 | ESE 10 | NE 10 | ESE 9 | ESE 9 | SE 9 | N 6 | ESE 9 | SE 8 | SE 8 | SE 9 | ESE 10 | ESE 10 |
 kJ | 505 | 561 | 388 | 24 | 24 | 58 | 58 | 103 | 28 | 21 | 25 | 750 | 426 | 380 | 112 | 173 | 84 | 129 | 144 | 267 | 246 |
Swell 2 Height (m) Direction Period (s) | NE 11 | NE 10 | NE 10 | SSE 11 | SE 12 | NE 10 | SE 11 | ESE 9 | SE 11 | SE 10 | NE 9 | — | — | NNE 7 | ESE 9 | NNW 6 | E 9 | E 9 | E 10 | S 7 | NE 10 |
| kJ | 31 | 26 | 25 | 12 | 5 | 15 | 19 | 32 | 29 | 15 | 12 | — | — | 142 | 146 | 40 | 101 | 110 | 75 | 14 | 33 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | — | SSE 12 | S 7 | SE 11 | NE 9 | SE 11 | NE 9 | NNE 9 | SE 13 | — | — | ENE 8 | SE 8 | SSE 7 | NE 10 | NE 9 | W 5 | NE 10 | NE 6 |
| kJ | 1 | 1 | — | 13 | 1 | 20 | 14 | 42 | 12 | 8 | 26 | — | — | 131 | 57 | 48 | 34 | 31 | 20 | 35 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | — | E 9 | E 9 | ENE 9 | ENE 6 | ENE 6 | E 7 | E 7 | E 7 | NE 6 | ENE 8 | NW 6 | — | — | W 4 | W 4 | — | — | — |
| kJ | — | — | — | 417 | 469 | 442 | 208 | 109 | 271 | 303 | 338 | 177 | 1479 | 133 | — | — | 8 | 13 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 191 | 191 | 204 | 191 | 204 | 204 | 191 | 196 | 204 | 204 | 191 | 191 | 191 | 152 | 152 | 0 | 0 | 0 | 497 | 195 | 195 |
Best forecast wave conditions in Izu Islands | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kaiser's (Hachijojima Island) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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