Surf Forecasts:
Santos (Hachijojima Island) surf forecast from 2 Sep 2026:
- Best quality surf: Friday 4 Sep, 12AM (local time) - 3.5ft (1.1m), 10s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 3AM (local time) - 20ft (6.0m), 13s period, SSE swell with 10,797 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 12AM (local time) - 3.5ft (1.1m), 10s 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 Friday (Sep 04) at 12AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.7m and 6s. 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 6.0m 13s and forecast to arrive on Wednesday (Sep 09) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Saturday (Sep 05) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 4th Sep) | 3.5ft (1.1m) 10s |
| Best Surf | 12AM (Fri 4th Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 3AM (Wed 9th Sep) | 20ft (6.0m) 13s |
Table - best surf conditions forecast for Santos (Hachijojima Island) over the next 16 days.
Short Range ForecastHeavy rain (total 33mm), heaviest during Sat morning. Warm (max 28°C on Wed afternoon, min 25°C on Sat morning). Winds increasing (calm on Fri morning, strong winds from the NE by Sat morning). | Days 5-7 Weather SummaryHeavy rain (total 70mm), heaviest during Sun morning. Warm (max 28°C on Sun night, min 26°C on Sat afternoon). Winds increasing (moderate winds from the SE on Mon morning, gales from the SSE by Tue morning). | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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 10 | E 10 | S 9 | ENE 10 | SSW 10 | SSW 10 | SSW 9 | SSW 10 | NNE 7 | NE 8 | ENE 8 | ENE 7 | NE 8 | NE 8 | NE 9 | SSE 8 | SSE 9 | SSE 11 | SSE 11 | SSE 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 156 | 245 | 177 | 163 | 237 | 218 | 197 | 550 | 516 | 1205 | 597 | 387 | 494 | 511 | 460 | 536 | 795 | 2985 | 3325 | 7912 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-off | cross-off | glassy | cross-on | cross | cross-off | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on |
High Tide | 7:49PM1.57m | 9:27AM1.24m | 8:14PM1.51m | 11:16AM1.13m | 8:44PM1.44m | 9:30PM1.36m | 4:20PM1.25m | 11:15PM1.30m | 4:22PM1.32m | 1:40AM1.34m | 4:41PM1.40m | 2:57AM1.46m | ||||||||
Low Tide | 2:54AM0.45m | 2:08PM0.97m | 3:58AM0.42m | 2:23PM1.07m | 5:24AM0.39m | 6:58AM0.32m | 7:23PM1.23m | 8:14AM0.24m | 8:50PM1.14m | 9:13AM0.19m | 9:36PM1.03m | |||||||||
 |  |  | |  | | | | |  |  | |  | | | | | | | | |
 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — |
 | 6:05 | — | — | 6:04 | — | — | 6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — |
mm | — | 2 | 4 | 3 | — | 3 | 3 | 6 | 12 | 1 | 4 | 14 | 10 | 11 | 10 | 11 | 7 | 2 | 23 | 12 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 27 | 26 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 |
Feels °C | 31 | 30 | 30 | 30 | 31 | 34 | 30 | 27 | 29 | 23 | 24 | 23 | 24 | 26 | 29 | 28 | 27 | 22 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | SSW 12 | SSW 10 | SSW 10 | SSW 9 | SE 7 | SW 9 | SW 9 | WSW 10 | SW 9 | NE 8 | NE 8 | NE 9 | ENE 9 | ENE 8 | NE 11 | NNE 11 | E 18 |
| kJ | 156 | 245 | 96 | 269 | 237 | 218 | 197 | 47 | 334 | 281 | 294 | 216 | 494 | 511 | 460 | 286 | 197 | 18 | 11 | 24 |
Swell 2 Height (m) Direction Period (s) | NE 7 | ENE 12 | ENE 11 | ENE 10 | SE 6 | E 9 | SE 7 | E 9 | WSW 12 | SE 8 | S 9 | SE 7 | SW 10 | SW 9 | NNW 6 | NNW 6 | SW 9 | WSW 9 | E 16 | NE 10 |
| kJ | 63 | 48 | 68 | 163 | 42 | 85 | 46 | 41 | 91 | 11 | 57 | 39 | 102 | 119 | 19 | 11 | 12 | 8 | 5 | 4 |
Swell 3 Height (m) Direction Period (s) | SSW 9 | SE 10 | NE 7 | SE 5 | E 10 | ESE 6 | E 9 | NNE 6 | SE 7 | SE 8 | NE 12 | NE 11 | SW 8 | SE 7 | SW 9 | NE 11 | NNE 11 | WSW 9 | E 16 | — |
| kJ | 99 | 25 | 23 | 28 | 94 | 36 | 60 | 18 | 22 | 43 | 34 | 57 | 72 | 47 | 41 | 33 | 12 | 7 | 5 | — |
Wind waves Height (m) Direction Period (s) | — | S 9 | S 9 | — | — | — | — | SSW 10 | NNE 7 | NE 8 | ENE 8 | ENE 7 | — | SSE 7 | S 8 | SSE 8 | SSE 9 | SSE 11 | SSE 11 | SSE 12 |
| kJ | — | 123 | 177 | — | — | — | — | 550 | 516 | 1205 | 597 | 387 | — | 78 | 393 | 536 | 795 | 2985 | 3325 | 7912 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 191 | 152 | 152 | 196 | 0 | 0 | 242 | 249 | 0 | 565 | 480 | 495 | 494 | 546 | 307 | 830 | 546 | 546 | 497 | 495 |
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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