Surf Forecasts:
Santos (Hachijojima Island) surf forecast from 9 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 12PM (local time) - 6.5ft (2.0m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 12PM (local time) - 8ft (2.5m), 12s period, ENE swell with 1,706 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 12PM (local time) - 6.5ft (2.0m), 11s period with ENE swell.
Best Forecast Surf Conditions for Santos (Hachijojima Island) this week:
The surf forecast for Santos (Hachijojima Island) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 12PM. The primary swell is predicted to be 2.0m and 11s period with a secondary swell of 1.9m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Santos (Hachijojima Island) in the next 16 days are 2.5m 12s and forecast to arrive on Monday (Aug 10) 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 1.6m 7s period and expected on Saturday (Aug 15) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 11th Aug) | 6.5ft (2.0m) 11s |
| Best Surf | 12PM (Tue 11th Aug) | 6.5ft (2.0m) 11s |
| Most Powerful | 12PM (Mon 10th Aug) | 8ft (2.5m) 12s |
Table - best surf conditions forecast for Santos (Hachijojima Island) over the next 16 days.
Short Range ForecastHeavy rain (total 23mm), heaviest during Tue night. Warm (max 27°C on Mon morning, min 25°C on Mon night). Winds increasing (calm on Tue afternoon, fresh winds from the SE by Wed morning). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Sat night. Warm (max 28°C on Thu afternoon, min 25°C on Sat night). Winds increasing (calm on Thu afternoon, gales from the N by Sat night). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | E 12 | ENE 12 | ENE 10 | ENE 10 | ENE 11 | ENE 11 | NNE 10 | NE 10 | E 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1494 | 1689 | 1231 | 803 | 858 | 631 | 485 | 257 | 101 | 335 | 482 | 679 | 666 | 689 | 676 | 1178 | 650 | 461 | 553 | 511 | 452 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | glassy | cross | on | on | cross-on | glassy | glassy | glassy | cross | cross-on | cross | cross | cross-on | cross-off | cross | cross | cross |
High Tide | 5:04PM1.36m | 2:48AM1.38m | 5:36PM1.42m | 3:50AM1.48m | 6:05PM1.47m | 4:43AM1.57m | 6:33PM1.51m | 5:32AM1.63m | 6:59PM1.55m | 6:20AM1.63m | 7:21PM1.59m | 7:05AM1.59m | 7:42PM1.61m | ||||||||
Low Tide | 9:23AM-0.01m | 9:49PM1.04m | 10:14AM-0.07m | 10:32PM0.96m | 11:01AM-0.06m | 11:11PM0.89m | 11:43AM0.02m | 11:49PM0.82m | 12:21PM0.17m | 00:28AM0.77m | 12:55PM0.36m | 1:07AM0.73m | 1:23PM0.56m | 1:47AM0.70m | |||||||
 |  |  |  |  |  |  | | | | |  | | | | | | |  | | | |
 | 4:58 | — | — | 5:00 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — |
 | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — |
mm | — | — | — | — | 1 | 17 | 1 | 2 | 2 | — | — | 3 | 1 | — | 1 | 2 | 1 | 5 | 4 | — | — |
Temp °C | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 27 |
Feels °C | 25 | 25 | 24 | 27 | 26 | 27 | 25 | 26 | 28 | 31 | 32 | 30 | 29 | 32 | 30 | 27 | 24 | 22 | 22 | 25 | 29 |
Swell 1 Height (m) Direction Period (s) | E 12 | ENE 12 | WSW 11 | ENE 10 | ENE 11 | ENE 11 | NNE 10 | NE 10 | SSW 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSW 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 |
| kJ | 1494 | 1689 | 219 | 803 | 858 | 631 | 485 | 257 | 160 | 335 | 482 | 679 | 666 | 689 | 676 | 160 | 650 | 461 | 553 | 511 | 452 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 11 | SSW 10 | SW 11 | NE 9 | NNE 10 | SSW 10 | SSW 10 | E 9 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SSE 8 | SSW 12 | SSW 10 | SSW 10 | SSW 9 | SSW 9 |
| kJ | 573 | 288 | 149 | 179 | 539 | 500 | 160 | 212 | 101 | 161 | 151 | 113 | 94 | 71 | 79 | 26 | 317 | 241 | 188 | 151 | 124 |
Swell 3 Height (m) Direction Period (s) | — | SSW 10 | — | SSW 11 | SSW 10 | SSW 10 | E 10 | E 10 | NE 8 | NNE 8 | NNE 7 | SW 9 | SW 9 | SE 10 | SSE 8 | SE 10 | SE 10 | NNE 6 | SE 11 | SSE 11 | SE 11 |
| kJ | — | 143 | — | 161 | 166 | 212 | 164 | 148 | 84 | 33 | 21 | 42 | 42 | 49 | 48 | 27 | 48 | 75 | 75 | 78 | 41 |
Wind waves Height (m) Direction Period (s) | NNE 4 | — | ENE 10 | NNE 9 | — | SSE 3 | ESE 3 | SSW 4 | — | — | — | — | — | — | — | NE 10 | N 7 | — | — | — | — |
| kJ | 19 | — | 1231 | 541 | — | 2 | 9 | 8 | — | — | — | — | — | — | — | 1178 | 206 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 204 | 191 | 204 | 237 | 0 | 494 | 249 | 204 | 208 | 0 | 0 | 0 | 227 | 191 | 196 | 227 | 497 | 227 | 227 | 233 | 191 |
Best forecast wave conditions in Izu Islands | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Santos (Hachijojima Island) Surf forecast
The above surf forecast table for Santos (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 Santos (Hachijojima Island) can be found by selecting the local surf guide option on the grey menu. Our Santos (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 (Santos (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 Santos (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.
Santos (Hachijojima Island) is 192 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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