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Surf Forecasts:
Kaiser's (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 8 am Wednesday 10 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Kaiser's (Hachijojima Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kaiser's (Hachijojima Island) sea temperature is
23.6° C
(Which is 2.3°C warmer than normal for this time of year)How big are the waves at Kaiser's (Hachijojima Island) today?
The current surf forecast for Kaiser's (Hachijojima Island) at 3PM is: 0.8m 9s primary swell from a East-southeast direction and 0.8m 7s secondary swell from a Northeast direction (forecast issued at 08:00am December 10). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 4ft (1.2m) | 7s |
| Afternoon (10 Dec) | 2.5ft (0.8m) | 9s |
| Evening (10 Dec) | 2.5ft (0.7m) | 9s |
Table - waves today at Kaiser's (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| 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) (?) | 7 | 7 | 7 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 8 | 10 | 9 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 184 | 135 | 91 | 113 | 106 | 76 | 115 | 131 | 128 | 125 | 123 | 94 | 98 | 88 | 153 | 139 | 133 | 102 | 106 | 112 | 571 | 1007 | 688 | 445 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | off | cross | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 10:02AM 1.26 | 8:12PM 1.38 | 10:46AM 1.27 | 9:24PM 1.30 | 11:30AM 1.31 | 10:53PM 1.22 | ||||||||||||||||||
Low Tide / height (m) | 2:36PM 1.04 | 3:44AM 0.42 | 3:58PM 1.03 | 4:35AM 0.60 | 5:33PM 0.97 | |||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| Sunrise | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:32 | - | - | - | - | - | - | - | 4:34 | - | - | - | - | - | - | - | 4:34 | - | - | - | - |
 |  | | |  |  | | | | |  |  | | | |  | | | | |  | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | 1 | - | 1 | 1 |
| Temp. °C | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 18 | 18 | 19 | 19 | 17 | 13 | 12 | 13 | 12 | 12 | 12 | 13 |
| Feels °C (?) | 8 | 7 | 7 | 7 | 7 | 8 | 10 | 11 | 12 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 6 | 1 | 1 | 8 | 5 | 6 | 8 | 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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