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Santos (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 2 am Wednesday 22 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
22.0° C
(Which is 2.1°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 8AM is: 2.3m 7s primary swell from a East direction and 0.8m 14s secondary swell from a Northeast direction (forecast issued at 02:00am April 22). An open ocean swell of 0.5m 7s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Apr) | 7.5ft (2.3m) | 7s |
| Afternoon (22 Apr) | 5.5ft (1.7m) | 7s |
| Evening (22 Apr) | 4.5ft (1.3m) | 7s |
Table - waves today at Santos (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 7 | 7 | 7 | 7 | 7 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 5 | 13 | 6 | 7 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 356 | 730 | 474 | 527 | 387 | 320 | 243 | 181 | 181 | 301 | 297 | 245 | 241 | 160 | 149 | 186 | 84 | 200 | 730 | 1112 | 1318 | 1235 | 1003 | 953 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | cross- on | cross- on | cross- off | cross- off | cross | cross- off | cross- off | cross | cross- on | cross | cross- on | cross- off | cross- off | cross | cross | cross | cross | cross | cross- on | cross- on |
High Tide / height (m) | 9:13PM 1.19 | 6:55AM 1.35 | 10:22PM 1.08 | 7:30AM 1.29 | 12:13AM 1.02 | 8:19AM 1.20 | ||||||||||||||||||
Low Tide / height (m) | 1:31AM 0.93 | 2:47PM -0.01 | 1:52AM 0.97 | 3:51PM 0.13 | 2:11AM 1.01 | 5:14PM 0.27 | ||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||||||||||
| Sunrise | - | - | 5:03 | - | - | - | - | - | - | - | 5:01 | - | - | - | - | - | - | - | 5:01 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:15 | - |
 |  |  | | | | | | | | |  | | |  |  |  |  | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | 3 | 3 | 9 | 16 | 6 | 4 | 1 | 1 | - | - | - | - |
| Temp. °C | 19 | 18 | 17 | 18 | 19 | 20 | 20 | 20 | 20 | 20 | 21 | 16 | 16 | 18 | 17 | 20 | 21 | 20 | 18 | 17 | 17 | 17 | 17 | 17 |
| Feels °C (?) | 13 | 10 | 9 | 13 | 16 | 18 | 17 | 19 | 19 | 17 | 16 | 13 | 14 | 13 | 14 | 13 | 13 | 16 | 8 | 7 | 8 | 8 | 9 | 9 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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