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Santos (Hachijojima Island) surfForecast / Izu Islands / Japan
16 Day Weather and Surf, issued 8 am Friday 10 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Santos (Hachijojima Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Santos (Hachijojima Island) sea temperature is
20.9° C
(Which is 1.6°C warmer than normal for this time of year)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 Sunday (Apr 12) at 6PM. The primary swell is predicted to be 1.3m 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 1.8m 16s and forecast to arrive on Thursday (Apr 16) 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 4.0m 10s period and expected on Saturday (Apr 11) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 12th Apr) | 4.5ft (1.3m) 8s |
| Best Surf | 3AM (Thu 16th Apr) | 4.5ft (1.4m) 14s |
| Most Powerful | 9AM (Thu 16th Apr) | 6ft (1.8m) 16s |
Table - best surf conditions forecast for Santos (Hachijojima Island) over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 4mm), mostly falling on Fri afternoon. Warm (max 21°C on Fri night, min 15°C on Sat night). Winds decreasing (near gales from the SW on Fri night, light winds from the W by Sun night). | Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Mon afternoon, min 16°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 7 | 9 | 11 | 7 | 11 | 11 | 11 | 7 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 15 | 16 | 14 | 16 | 15 | 8 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 435 | 61 | 101 | 115 | 117 | 115 | 99 | 0 | 133 | 81 | 120 | 204 | 234 | 260 | 511 | 231 | 721 | 862 | 1609 | 1486 | 1042 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | off | off | off | off | cross- off | off | off | off | cross- off | cross | on | on | on | cross | cross | cross- on | cross- on |
High Tide / height (m) | 3:14AM 8:28AM 1.06 1.04 | 3:12AM 1.13 | 12:34PM 1.01 | 3:26AM 1.19 | 2:09PM 1.11 | 3:43AM 1.26 | 3:09PM 1.24 | 4:02AM 1.34 | 4:01PM 1.36 | 4:23AM 1.40 | 4:51PM 1.44 | ||||||||||
Low Tide / height (m) | 5:12PM 0.42 | 7:02AM 1.04 | 6:50PM 0.42 | 8:25AM 0.94 | 7:59PM 0.39 | 8:56AM 0.82 | 8:50PM 0.37 | 9:26AM 0.66 | 9:33PM 0.37 | 9:59AM 0.48 | 10:12PM 0.40 | 10:34AM 0.28 | 10:50PM 0.46 | ||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
| Sunrise | 5:18 | - | - | 5:16 | - | - | 5:15 | - | - | 5:13 | - | - | 5:13 | - | - | 5:11 | - | - | 5:09 | - | - |
| Sunset | - | 6:06 | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:08 | - | - | 6:09 | - | - | 6:10 | - |
 |  |  |  | |  |  | |  | | | | | |  | | | | | | | |
Rain (mm) | - | 2 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 20 | 21 | 20 | 19 | 20 | 18 | 18 | 18 | 18 | 19 | 19 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 18 |
| Feels °C (?) | 11 | 13 | 14 | 15 | 13 | 15 | 14 | 14 | 16 | 16 | 17 | 18 | 14 | 16 | 15 | 14 | 16 | 17 | 15 | 14 | 12 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Santos (Hachijojima Island) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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