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Kaiser's (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 8 pm Monday 18 May 2026 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
23.5° C
(Which is 1.8°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 2AM is: 0.8m 9s primary swell from a East direction and 0.7m 9s secondary swell from a Southeast direction (forecast issued at 08:00pm May 18). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 2.5ft (0.8m) | 11s |
| Afternoon (19 May) | 3ft (0.9m) | 11s |
| Evening (19 May) | 4ft (1.2m) | 10s |
Table - waves today at Kaiser's (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Warm (max 24°C on Wed night, min 20°C on Mon night). Winds increasing (light winds from the SSE on Mon night, strong winds from the SW by Thu morning). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | |||||||||||||||||||||
6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
E 8 | E 8 | SE 9 | E 10 | E 9 | SE 11 | SE 10 | SE 11 | SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | SSW 6 | ESE 10 | ESE 10 | |
140 | 112 | 78 | 146 | 132 | 134 | 150 | 191 | 185 | 267 | 292 | 286 | 286 | 256 | 251 | 246 | 241 | 184 | 184 | 168 | 142 | 223 | 132 | 105 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 7:30PM1.44m | 5:33AM1.47m | 8:21PM1.36m | 6:10AM1.44m | 9:13PM1.27m | 6:53AM1.40m | ||||||||||||||||||
Low Tide | 00:24AM0.92m | 1:00PM-0.25m | 00:59AM0.97m | 1:49PM-0.13m | 1:33AM1.00m | 2:42PM0.04m | ||||||||||||||||||
 |  |  | | | | |  | | | | | | |  | | |  |  | |  | | | | |
 | — | — | — | 4:39 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:37 | — | — | — | — |
 | 6:34 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | 6:36 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 2 | 1 | 1 | |
Temp °C | 21 | 21 | 21 | 20 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 |
22 | 21 | 21 | 21 | 22 | 22 | 23 | 22 | 21 | 21 | 21 | 21 | 22 | 23 | 25 | 25 | 24 | 24 | 24 | 22 | 21 | 19 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 10 | E 9 | E 9 | E 9 | SE 11 | SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 140 | 112 | 63 | 146 | 132 | 108 | 103 | 191 | 185 | 267 | 292 | 286 | 286 | 256 | 251 | 246 | 241 | 184 | 184 | 168 | 142 | 145 | 132 | 105 |
Swell 2 Height (m) Direction Period (s) | NE 10 | SE 9 | SE 9 | SE 9 | SE 11 | SE 11 | SE 10 | E 10 | E 10 | NE 9 | NE 9 | NE 9 | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | ENE 8 |
| kJ | 33 | 68 | 78 | 78 | 110 | 134 | 150 | 115 | 98 | 12 | 12 | 30 | 32 | 33 | 31 | 29 | 29 | 28 | 27 | 27 | 18 | 11 | 10 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 10 | NE 10 | E 10 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 11 | NE 11 | S 8 | S 8 | S 8 | S 8 | S 8 | S 6 | SSW 6 | — | — | — | — | N 12 | NE 12 |
| kJ | 37 | 33 | 48 | 31 | 29 | 29 | 29 | 29 | 29 | 19 | 19 | 1 | 1 | 1 | 1 | 1 | 3 | 4 | — | — | — | — | 3 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 2 | SSW 3 | SSW 4 | SSW 5 | SSW 6 | SSW 7 | SW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 7 | 41 | 138 | 223 | 431 | 513 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 152 | 195 | 195 | 195 | 152 | 195 | 516 | 516 | 195 | 195 | 195 | 152 | 0 | 0 | 0 | 152 | 195 | 152 | 195 | 195 | 195 | 152 | 152 | 152 |
Best forecast wave conditions in Izu Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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