Surf Forecasts:
Kaiser's (Hachijojima Island) surf forecast from 20 Sep 2026:
- Best quality surf: Monday 21 Sep, 9AM (local time) - 23ft (7.0m), 12s period, SSE swell with cross-onshore winds.
- Most powerful swell: Monday 21 Sep, 3PM (local time) - 30ft (9.0m), 13s period, S swell with 27,471 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 9AM (local time) - 23ft (7.0m), 12s period with SSE 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 Monday (Sep 21) at 9AM. The primary swell is predicted to be 7.0m and 12s period with a secondary swell of 0.6m and 11s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Kaiser's (Hachijojima Island) in the next 16 days are 9.0m 13s and forecast to arrive on Monday (Sep 21) 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 8.0m 12s period and expected on Monday (Sep 21) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 21st Sep) | 23ft (7.0m) 12s |
| Best Surf | 9AM (Mon 21st Sep) | 23ft (7.0m) 12s |
| Most Powerful | 3PM (Mon 21st Sep) | 30ft (9.0m) 13s |
Table - best surf conditions forecast for Kaiser's (Hachijojima Island) over the next 16 days.
Short Range ForecastHeavy rain (total 48mm), heaviest during Mon night. Warm (max 28°C on Mon morning, min 26°C on Tue morning). Winds decreasing (stormy winds from the S on Mon afternoon, calm by Wed morning). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sat night. Warm (max 26°C on Thu morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||
AM | PM | 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) | SSE 12 | S 13 | SSE 9 | ENE 10 | S 7 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 9 | NE 9 | NE 9 | NE 8 | NNE 7 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15812 | 27471 | 370 | 31 | 246 | 111 | 193 | 230 | 216 | 225 | 199 | 164 | 68 | 286 | 353 | 321 | 257 | 234 | 169 | 138 | 65 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-on | cross-on | on | cross-off | cross | cross-on | cross-on | cross-on | cross |
High Tide | 4:04PM1.38m | 1:08AM1.30m | 4:12PM1.45m | 2:22AM1.40m | 4:25PM1.51m | 3:11AM1.51m | 4:40PM1.57m | 3:52AM1.61m | 4:55PM1.63m | 4:32AM1.68m | 5:13PM1.68m | 5:14AM1.71m | 5:32PM1.71m | ||||||||
Low Tide | 8:57PM1.21m | 8:41AM0.51m | 9:19PM1.11m | 9:23AM0.46m | 9:44PM1.01m | 9:57AM0.45m | 10:10PM0.89m | 10:27AM0.47m | 10:39PM0.77m | 10:56AM0.52m | 11:10PM0.63m | 11:24AM0.59m | 11:44PM0.50m | ||||||||
 |  |  |  |  |  |  | | | | |  |  | | | | |  | | | | |
 | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — |
 | — | 5:39 | — | — | 5:37 | — | — | 5:37 | — | — | 5:36 | — | — | 5:34 | — | — | 5:32 | — | — | 5:30 | — |
mm | 6 | 21 | 21 | — | — | — | — | — | — | — | — | — | 2 | 1 | 2 | 1 | — | 6 | 4 | 1 | 1 |
Temp °C | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 27 |
Feels °C | 20 | 17 | 15 | 24 | 27 | 30 | 30 | 30 | 28 | 28 | 27 | 28 | 26 | 26 | 27 | 29 | 27 | 24 | 25 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | E 11 | — | SSE 9 | NW 8 | S 7 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 9 | NE 9 | NE 9 | NE 8 | ESE 8 | ESE 8 | SSE 8 | S 9 | ENE 7 | ENE 7 | ENE 7 | NE 7 |
| kJ | 89 | — | 370 | 125 | 246 | 111 | 193 | 230 | 216 | 225 | 199 | 164 | 68 | 23 | 14 | 7 | 14 | 234 | 169 | 138 | 65 |
Swell 2 Height (m) Direction Period (s) | — | — | E 10 | N 7 | NW 7 | SSW 6 | SSE 6 | SW 5 | SE 8 | E 9 | E 9 | E 9 | E 8 | SSE 8 | SSE 8 | S 10 | SSE 9 | S 8 | S 8 | S 8 | E 9 |
| kJ | — | — | 50 | 68 | 54 | 51 | 16 | 13 | 18 | 25 | 14 | 24 | 23 | 7 | 7 | 8 | 8 | 12 | 12 | 10 | 26 |
Swell 3 Height (m) Direction Period (s) | — | — | — | ENE 10 | NNE 8 | W 6 | SSW 6 | SSE 6 | E 9 | SE 8 | SW 4 | SSE 8 | SSE 8 | SSW 7 | SW 7 | S 7 | S 7 | SSE 9 | SSE 8 | SSE 9 | SSW 12 |
| kJ | — | — | — | 31 | 45 | 29 | 12 | 15 | 25 | 18 | 5 | 7 | 7 | 5 | 2 | 1 | 1 | 8 | 14 | 16 | 29 |
Wind waves Height (m) Direction Period (s) | SSE 12 | S 13 | W 10 | SW 8 | W 7 | — | — | — | SW 5 | SW 4 | NNW 4 | — | NNE 5 | NNE 7 | NE 7 | NE 7 | ENE 7 | — | — | — | SSW 3 |
| kJ | 15812 | 27471 | 4459 | 836 | 230 | — | — | — | 9 | 7 | 6 | — | 46 | 286 | 353 | 321 | 257 | — | — | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 768 | 507 | 195 | 228 | 0 | 218 | 0 | 1308 | 240 | 228 | 231 | 0 | 912 | 1130 | 227 | 0 | 798 | 228 | 204 | 204 | 195 |
Best forecast wave conditions in Izu Islands | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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