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Surf Forecasts:
Kaiser's (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 8 am Tuesday 16 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
22.7° C
(Which is 1.6°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: 1.0m 12s primary swell from a North-northeast direction and 0.4m 8s secondary swell from a Southeast direction (forecast issued at 08:00am December 16). An open ocean swell of 1.5m 7s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 1.5ft (0.4m) | 12s |
| Afternoon (16 Dec) | 3.5ft (1.0m) | 12s |
| Evening (16 Dec) | 1ft (0.3m) | 13s |
Table - waves today at Kaiser's (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| 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) (?) | 8 | 12 | 12 | 12 | 11 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 13 | 18 | 18 | 17 | 16 | 16 | 16 | 7 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 62 | 40 | 93 | 256 | 226 | 34 | 80 | 77 | 74 | 72 | 71 | 55 | 48 | 31 | 46 | 81 | 152 | 143 | 175 | 261 | 258 | 423 | 564 | 558 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on |
High Tide / height (m) | 3:40AM 1.24 | 2:12PM 1.45 | 4:34AM 1.28 | 2:48PM 1.44 | 5:18AM 1.32 | 3:24PM 1.43 | ||||||||||||||||||
Low Tide / height (m) | 8:15AM 1.00 | 9:35PM 0.40 | 9:13AM 1.01 | 10:13PM 0.26 | 10:04AM 0.99 | 10:48PM 0.15 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| Sunrise | - | 6:35 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - |
| Sunset | - | - | - | 4:35 | - | - | - | - | - | - | - | 4:35 | - | - | - | - | - | - | - | 4:36 | - | - | - | - |
 |  | | | | | | | | | | | |  | |  |  |  |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 6 | 1 | - | - | - | 1 |
| Temp. °C | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 16 | 16 | 15 | 17 | 17 | 18 | 18 | 18 | 17 | 14 | 16 | 16 | 17 | 16 | 16 |
| Feels °C (?) | 4 | 3 | 3 | 4 | 5 | 6 | 7 | 9 | 9 | 9 | 9 | 8 | 10 | 9 | 10 | 10 | 11 | 11 | 9 | 10 | 12 | 13 | 10 | 9 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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