Surf Forecasts:
Santos (Hachijojima Island) surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 6PM (local time) - 4.5ft (1.3m), 8s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 12 Sep, 9PM (local time) - 4ft (1.2m), 13s period, ESE swell with 531 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 9AM (local time) - 5.5ft (1.7m), 8s period with SSW 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 Thursday (Sep 10) at 9AM. The primary swell is predicted to be 1.7m and 8s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Santos (Hachijojima Island) in the next 16 days are 1.2m 13s and forecast to arrive on Saturday (Sep 12) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Wednesday (Sep 09) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 10th Sep) | 5.5ft (1.7m) 8s |
| Best Surf | 6PM (Thu 10th Sep) | 4.5ft (1.3m) 8s |
| Most Powerful | 9PM (Sat 12th Sep) | 4ft (1.2m) 13s |
Table - best surf conditions forecast for Santos (Hachijojima Island) over the next 16 days.
Short Range ForecastModerate rain (total 10mm), heaviest on Wed night. Warm (max 28°C on Wed afternoon, min 27°C on Wed night). Winds decreasing (strong winds from the SSW on Wed afternoon, calm by Thu afternoon). | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Mon afternoon. Warm (max 28°C on Sat afternoon, min 26°C on Mon afternoon). Wind will be generally light. | |||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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) | SSW 9 | E 16 | SSW 8 | SSW 8 | NNE 8 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | SE 9 | ESE 9 | ESE 9 | ENE 14 | SE 9 | E 14 | ENE 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1373 | 76 | 361 | 251 | 204 | 196 | 194 | 302 | 383 | 366 | 352 | 215 | 273 | 316 | 354 | 362 | 331 | 336 | 508 | 395 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | glassy | cross-off | cross-off | cross-off | on | on | on | on | on | on | cross-on | cross-on | cross | cross-on | cross | cross | cross |
High Tide | 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 | 7:36AM1.54m | 6:56PM1.70m | |||||||
Low Tide | 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 | 12:59PM0.94m | 1:47AM0.58m | |||||||
 |  |  | |  | | | | | | | | |  |  |  |  | | | | |
 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — |
 | 5:55 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:51 | — | — | 5:49 | — | — | 5:47 | — |
mm | — | 7 | 1 | — | — | — | 2 | — | — | — | — | 2 | — | — | — | 6 | 5 | 5 | 4 | 2 |
Temp °C | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 28 | 28 | 27 |
Feels °C | 26 | 27 | 31 | 32 | 31 | 31 | 33 | 32 | 31 | 31 | 29 | 29 | 29 | 28 | 29 | 29 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 10 | E 16 | SSW 8 | SSW 8 | NNE 8 | NE 7 | SSW 8 | E 14 | E 14 | E 13 | E 13 | E 13 | ESE 8 | E 12 | ESE 9 | ESE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
| kJ | 24 | 76 | 361 | 251 | 204 | 122 | 81 | 302 | 383 | 366 | 352 | 215 | 184 | 193 | 354 | 362 | 309 | 336 | 334 | 215 |
Swell 2 Height (m) Direction Period (s) | E 16 | NNE 10 | W 7 | NNE 8 | SSW 8 | SSW 8 | NE 7 | SSW 8 | NNE 7 | NNE 7 | NE 6 | NE 6 | E 13 | NE 6 | E 12 | E 13 | ENE 14 | E 12 | E 14 | ENE 14 |
| kJ | 46 | 20 | 85 | 226 | 155 | 99 | 71 | 64 | 30 | 30 | 21 | 21 | 273 | 10 | 110 | 156 | 331 | 148 | 508 | 395 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 10 | NNE 8 | W 7 | E 14 | E 14 | E 14 | NNE 6 | SSW 7 | SSW 7 | SW 7 | SW 7 | NE 6 | SSW 7 | ENE 16 | ENE 16 | ENE 7 | ENE 15 | — | SW 8 |
| kJ | 17 | 16 | 72 | 33 | 144 | 196 | 194 | 37 | 29 | 19 | 12 | 12 | 14 | 5 | 84 | 85 | 5 | 246 | — | 2 |
Wind waves Height (m) Direction Period (s) | SSW 9 | SSW 8 | — | — | — | — | — | — | — | — | SE 7 | SE 8 | — | SE 9 | — | SW 7 | — | SW 7 | S 5 | SW 5 |
| kJ | 1373 | 748 | — | — | — | — | — | — | — | — | 75 | 192 | — | 316 | — | 2 | — | 2 | 56 | 25 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 546 | 227 | 0 | 0 | 0 | 0 | 0 | 204 | 204 | 204 | 204 | 204 | 191 | 196 | 196 | 196 | 152 | 152 | 196 | 196 |
Best forecast wave conditions in Izu Islands | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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