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Santos (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 8 pm Saturday 28 Mar 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
20.5° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Santos (Hachijojima Island) today?
The current surf forecast for Santos (Hachijojima Island) at 2AM is: 1.1m 11s primary swell from a Northeast direction and 1.2m 10s secondary swell from a East direction (forecast issued at 08:00pm March 28). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Mar) | 4.5ft (1.3m) | 10s |
| Afternoon (29 Mar) | 3.5ft (1.1m) | 10s |
| Evening (29 Mar) | 3.5ft (1.0m) | 10s |
Table - waves today at Santos (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 6 | 6 | 7 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 461 | 344 | 349 | 258 | 349 | 349 | 300 | 245 | 240 | 192 | 147 | 141 | 117 | 115 | 150 | 143 | 125 | 140 | 129 | 107 | 178 | 377 | 1096 | 37 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross |
High Tide / height (m) | 4:10AM 1.09 | 2:35PM 1.12 | 4:25AM 1.18 | 3:38PM 1.25 | 4:43AM 1.28 | |||||||||||||||||||
Low Tide / height (m) | 8:33PM 0.19 | 9:14AM 0.79 | 9:28PM 0.20 | 9:53AM 0.65 | 10:11PM 0.24 | 10:28AM 0.52 | ||||||||||||||||||
Sat 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:33 | - | - | - | - | - | - | - | 5:31 | - | - | - | - | - | - | - | 5:31 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:59 |
 |  | | |  | | |  | | | | | | | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 3 | 1 |
| Temp. °C | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 19 |
| Feels °C (?) | 15 | 14 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 13 | 12 | 11 | 9 | 7 | 5 | 8 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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