Surf Forecasts:
Santos (Hachijojima Island) surf forecast from 4 Sep 2026:
- Best quality surf: Thursday 10 Sep, 12AM (local time) - 8ft (2.4m), 9s period, SSW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 9AM (local time) - 15ft (4.5m), 10s period, S swell with 3,902 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 6AM (local time) - 1.5ft (0.5m), 9s period with E 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 Saturday (Sep 05) at 6AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.6m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Santos (Hachijojima Island) in the next 16 days are 4.5m 10s and forecast to arrive on Monday (Sep 07) at 9AM. 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 Thursday (Sep 10) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 5th Sep) | 1.5ft (0.5m) 9s |
| Best Surf | 12AM (Thu 10th Sep) | 8ft (2.4m) 9s |
| Most Powerful | 9AM (Mon 7th Sep) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Santos (Hachijojima Island) over the next 16 days.
Short Range ForecastHeavy rain (total 129mm), heaviest during Sat night. Warm (max 29°C on Fri afternoon, min 25°C on Sat morning). Winds increasing (calm on Fri night, strong winds from the S by Sun night). | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Thu morning. Warm (max 28°C on Mon afternoon, min 26°C on Wed night). Winds decreasing (strong winds from the SSW on Wed morning, light winds from the N by Wed night). | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 9 | E 9 | NE 6 | E 6 | ESE 7 | E 7 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 8 | S 8 | NE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 119 | 59 | 41 | 66 | 282 | 420 | 639 | 2582 | 3902 | 2881 | 2314 | 2100 | 2184 | 3039 | 2056 | 1519 | 880 | 470 | 309 | 335 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross-off | off | cross-on | cross-off | cross-off |
High Tide | 8:44PM1.44m | 9:30PM1.36m | 4:20PM1.25m | 11:15PM1.30m | 4:22PM1.32m | 1:40AM1.34m | 4:41PM1.40m | 2:57AM1.46m | 5:03PM1.47m | 3:54AM1.59m | 5:25PM1.55m | |||||||||
Low Tide | 5:24AM0.39m | 6:58AM0.32m | 7:23PM1.23m | 8:14AM0.24m | 8:50PM1.14m | 9:13AM0.19m | 9:36PM1.03m | 10:01AM0.18m | 10:16PM0.91m | 10:43AM0.23m | 10:53PM0.80m | |||||||||
 |  |  |  | | | | | | | |  | | | | | | | |  | |
 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — |
 | 6:02 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:57 | — | — | 5:55 | — | — | 5:54 | — |
mm | — | 3 | 6 | 5 | 44 | 16 | 15 | 35 | 5 | 2 | 4 | — | 2 | 3 | 2 | 2 | 7 | 5 | 7 | — |
Temp °C | 29 | 28 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 |
Feels °C | 33 | 31 | 26 | 24 | 24 | 27 | 25 | 26 | 26 | 28 | 27 | 28 | 28 | 28 | 25 | 26 | 30 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 10 | SW 12 | SW 10 | SW 11 | SW 10 | S 9 | NE 8 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | E 18 | E 17 | E 16 | E 16 | SSW 8 | S 8 | NE 8 |
| kJ | 119 | 240 | 389 | 261 | 115 | 49 | 427 | 369 | 269 | 155 | 50 | 46 | 30 | 24 | 52 | 46 | 76 | 470 | 309 | 335 |
Swell 2 Height (m) Direction Period (s) | SW 11 | E 9 | ESE 7 | SE 8 | NE 12 | NE 11 | WSW 10 | NE 12 | — | NE 11 | NE 11 | NNE 11 | E 10 | NE 12 | NNE 11 | NNE 9 | NNE 8 | NNE 7 | NNE 7 | S 8 |
| kJ | 97 | 59 | 30 | 43 | 66 | 58 | 38 | 75 | — | 61 | 20 | 12 | 7 | 5 | 11 | 17 | 14 | 178 | 263 | 153 |
Swell 3 Height (m) Direction Period (s) | E 9 | ESE 7 | E 9 | E 9 | SSW 9 | SSW 9 | NE 14 | WSW 10 | — | — | E 18 | E 16 | NNE 11 | SE 12 | NNE 9 | E 10 | NNW 6 | E 15 | E 14 | E 14 |
| kJ | 60 | 32 | 41 | 39 | 26 | 27 | 66 | 10 | — | — | 6 | 5 | 12 | 6 | 8 | 16 | 7 | 69 | 100 | 144 |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 6 | E 6 | ESE 7 | E 7 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | — | — | — |
| kJ | — | — | — | 66 | 282 | 420 | 639 | 2582 | 3902 | 2881 | 2314 | 2100 | 2184 | 3039 | 2056 | 1519 | 880 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 204 | 218 | 227 | 204 | 480 | 546 | 546 | 546 | 196 | 227 | 196 | 196 | 155 | 204 | 191 | 218 | 0 | 218 | 494 | 252 |
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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