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Santos (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 2 am Monday 20 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
22.1° C
(Which is 2.4°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 9AM is: 2.5m 13s primary swell from a East-southeast direction and 0.6m 10s secondary swell from a East-northeast direction (forecast issued at 02:00am April 20). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Apr) | 8ft (2.5m) | 13s |
| Afternoon (20 Apr) | 7.5ft (2.3m) | 12s |
| Evening (20 Apr) | 7ft (2.2m) | 12s |
Table - waves today at Santos (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||||
| 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) (?) | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 14 | 13 | 7 | 7 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3228 | 2681 | 2386 | 2131 | 1694 | 1579 | 1412 | 1313 | 1126 | 961 | 988 | 730 | 619 | 520 | 441 | 432 | 363 | 353 | 512 | 239 | 257 | 214 | 246 | 217 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | on | on | on | on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | off | off | off | cross- off | on | on | on | cross- on | cross | cross- off | cross- off |
High Tide / height (m) | 6:00AM 1.45 | 8:16PM 1.32 | 6:26AM 1.41 | 9:13PM 1.19 | 6:55AM 1.35 | |||||||||||||||||||
Low Tide / height (m) | 12:36AM 0.76 | 1:10PM -0.18 | 1:06AM 0.85 | 1:55PM -0.13 | 1:31AM 0.93 | 2:47PM -0.01 | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||||
| Sunrise | - | - | 5:05 | - | - | - | - | - | - | - | 5:03 | - | - | - | - | - | - | - | 5:03 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:14 | - | - | - | - | - | - | - | 6:15 | - |
 | |  |  | | | |  | |  |  |  | |  | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | 1 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 19 | 19 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 18 | 19 | 20 | 19 | 20 |
| Feels °C (?) | 14 | 13 | 14 | 14 | 15 | 15 | 15 | 14 | 16 | 16 | 16 | 16 | 16 | 13 | 12 | 13 | 16 | 15 | 14 | 15 | 17 | 16 | 14 | 17 |
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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