Surf Forecasts:
Kaiser's (Hachijojima Island) surf forecast from 8 Sep 2026:
- Best quality surf: Thursday 10 Sep, 9AM (local time) - 6.5ft (2.0m), 8s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 6AM (local time) - 10ft (3.0m), 9s period, SSW swell with 1,531 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 9AM (local time) - 6.5ft (2.0m), 8s period with SSW swell.
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 Thursday (Sep 10) at 9AM. The primary swell is predicted to be 2.0m and 8s period with a secondary swell of 0.8m and 8s. 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 9s and forecast to arrive on Wednesday (Sep 09) at 6AM. 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 8s period and expected on Thursday (Sep 10) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 10th Sep) | 6.5ft (2.0m) 8s |
| Best Surf | 9AM (Thu 10th Sep) | 6.5ft (2.0m) 8s |
| Most Powerful | 6AM (Wed 9th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Kaiser's (Hachijojima Island) over the next 16 days.
Short Range ForecastModerate rain (total 16mm), heaviest on Thu morning. Warm (max 29°C on Wed afternoon, min 27°C on Thu morning). Winds decreasing (strong winds from the SSW on Tue night, light winds from the WSW by Thu night). | Days 5-7 Weather SummaryHeavy rain (total 32mm), heaviest during Mon morning. Warm (max 28°C on Fri night, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | NE 8 | E 14 | E 14 | E 14 | E 13 | E 13 | ESE 9 | E 13 | ESE 9 | ESE 9 | ESE 9 | ENE 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 1424 | 1531 | 1258 | 820 | 498 | 341 | 246 | 144 | 194 | 306 | 383 | 366 | 285 | 238 | 219 | 300 | 362 | 354 | 304 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on |
High Tide | 2:57AM1.46m | 5:03PM1.47m | 3:54AM1.59m | 5:25PM1.55m | 4:43AM1.67m | 5:46PM1.62m | 5:29AM1.71m | 6:07PM1.68m | 6:12AM1.69m | 6:25PM1.71m | 6:54AM1.63m | 6:41PM1.72m | |||||||
Low Tide | 9:36PM1.03m | 10:01AM0.18m | 10:16PM0.91m | 10:43AM0.23m | 10:53PM0.80m | 11:19AM0.34m | 11:29PM0.71m | 11:51AM0.49m | 00:05AM0.64m | 12:18PM0.66m | 00:39AM0.60m | 12:40PM0.81m | 1:13AM0.58m | ||||||
 |  | |  |  | | | | |  | | | | | | | | | | |
 | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | — | 5:55 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:51 | — | — | 5:49 | — |
mm | — | — | — | 4 | 9 | 2 | — | 1 | — | 1 | 2 | — | 6 | 2 | 1 | — | 10 | 10 | 4 |
Temp °C | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 26 | 26 | 28 | 28 | 31 | 30 | 32 | 31 | 30 | 33 | 31 | 29 | 28 | 28 | 29 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 9 | E 16 | E 16 | SSW 8 | SSW 8 | NNE 7 | NE 8 | NE 7 | E 14 | E 14 | E 13 | NNE 6 | ESE 9 | E 13 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 46 | 15 | 46 | 76 | 498 | 341 | 115 | 133 | 79 | 306 | 383 | 366 | 65 | 238 | 219 | 300 | 362 | 354 | 293 |
Swell 2 Height (m) Direction Period (s) | NNE 10 | E 17 | SE 9 | NNE 10 | NNE 8 | NNE 8 | E 14 | E 14 | E 14 | SSW 7 | NNE 6 | SSW 7 | E 13 | E 13 | NNE 6 | E 12 | E 12 | E 13 | ENE 14 |
| kJ | 11 | 52 | 23 | 20 | 75 | 210 | 144 | 144 | 194 | 86 | 52 | 19 | 285 | 219 | 25 | 148 | 146 | 156 | 304 |
Swell 3 Height (m) Direction Period (s) | E 18 | NNE 8 | E 10 | E 10 | W 7 | E 14 | SE 10 | ESE 10 | ESE 10 | NNE 7 | SSW 7 | W 8 | SE 9 | NE 6 | E 10 | NE 6 | NE 6 | NE 6 | NE 6 |
| kJ | 24 | 7 | 17 | 17 | 33 | 100 | 24 | 31 | 36 | 59 | 29 | 1 | 115 | 37 | 16 | 18 | 13 | 13 | 7 |
Wind waves Height (m) Direction Period (s) | SSW 9 | SSW 9 | SSW 9 | SSW 8 | — | W 7 | SSW 8 | SSW 8 | SSW 8 | — | — | NNE 6 | — | — | ESE 8 | — | — | — | — |
| kJ | 1424 | 1531 | 1258 | 820 | — | 31 | 246 | 232 | 187 | — | — | 62 | — | — | 179 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 195 | 497 | 516 | 546 | 237 | 227 | 227 | 0 | 208 | 204 | 0 | 204 | 204 | 204 | 204 | 191 | 191 | 191 | 152 |
Best forecast wave conditions in Izu Islands | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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