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Surf Forecasts:
Santos (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 8 am Sunday 28 Dec 2025 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
22.5° 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 3PM is: 0.9m 14s primary swell from a East-northeast direction (forecast issued at 08:00am December 28). An open ocean swell of 1.1m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Dec) | 3.5ft (1.0m) | 14s |
| Afternoon (28 Dec) | 3ft (0.9m) | 14s |
| Evening (28 Dec) | 3ft (0.9m) | 13s |
Table - waves today at Santos (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 28 | Monday 29 | Tuesday 30 | Wed 31 | |||||||||||||||||||||
| 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 | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 18 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 342 | 352 | 362 | 322 | 312 | 307 | 246 | 246 | 238 | 178 | 172 | 169 | 115 | 115 | 113 | 111 | 147 | 169 | 251 | 239 | 318 | 301 | 293 | 231 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | glass | cross | glass | cross- off | cross- off | off | off | off | off | cross- off | cross- off | off | off | off | off | off | off | cross- off | cross- off | off |
High Tide / height (m) | 11:08AM 1.29 | 11:33PM 1.06 | 11:54AM 1.27 | 1:52AM 1.06 | 12:44PM 1.26 | |||||||||||||||||||
Low Tide / height (m) | 4:23AM 0.56 | 5:51PM 0.68 | 5:23AM 0.70 | 7:11PM 0.47 | 6:41AM 0.81 | 8:16PM 0.23 | ||||||||||||||||||
Sunday 28 | Monday 29 | Tuesday 30 | Wed 31 | |||||||||||||||||||||
| Sunrise | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:40 | - | - | - | - | - | - | - | 4:40 | - | - | - | - | - | - | - | 4:42 | - | - | - | - |
 |  | |  |  | | | |  |  | | | | | | | |  | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Temp. °C | 12 | 13 | 13 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 18 | 16 |
| Feels °C (?) | 4 | 5 | 6 | 8 | 11 | 10 | 11 | 9 | 9 | 7 | 7 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 10 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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