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Santos (Hachijojima Island) surfForecast / Izu Islands / Japan
48hr Weather and Surf, issued 2 am Thursday 21 May 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
23.4° C
(Which is 1.6°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 7AM is: 0.9m 10s primary swell from a East-southeast direction and 0.3m 8s secondary swell from a Northeast direction (forecast issued at 02:00am May 21). An open ocean swell of 1.7m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 3ft (0.9m) | 10s |
| Afternoon (21 May) | 2.5ft (0.8m) | 10s |
| Evening (21 May) | 2.5ft (0.8m) | 10s |
Table - waves today at Santos (Hachijojima Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 40mm), heaviest during Fri morning. Warm (max 24°C on Thu afternoon, min 20°C on Fri afternoon). Mainly near gales. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ESE 9 | ESE 10 | SSW 6 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | NNE 9 | NE 9 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | |
168 | 142 | 166 | 145 | 132 | 105 | 105 | 103 | 71 | 71 | 72 | 74 | 52 | 52 | 51 | 51 | 1564 | 1664 | 1575 | 1507 | 1304 | 1144 | 1020 | 971 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | |
High Tide | 9:13PM1.27m | 6:53AM1.40m | 10:07PM1.20m | 7:46AM1.33m | 11:06PM1.17m | 8:57AM1.25m | ||||||||||||||||||
Low Tide | 1:33AM1.00m | 2:42PM0.04m | 2:17AM1.02m | 3:41PM0.23m | 3:34AM1.03m | 4:44PM0.42m | ||||||||||||||||||
 | |  | |  |  | |  | | |  |  | |  | |  | | | | | |  | | | |
 | — | 4:37 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — |
— | — | — | — | 1 | — | — | — | — | — | 3 | 11 | 17 | 1 | — | 1 | 1 | 1 | 1 | — | — | — | — | — | |
Temp °C | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 22 | 21 | 20 | 21 | 21 | 21 | 20 | 21 | 20 | 20 | 20 | 20 | 20 |
21 | 21 | 20 | 19 | 18 | 20 | 19 | 20 | 19 | 19 | 18 | 20 | 18 | 13 | 14 | 13 | 14 | 13 | 15 | 13 | 14 | 14 | 14 | 15 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | WSW 8 | WSW 8 | SW 8 | WSW 8 | SW 8 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 |
 kJ | 168 | 142 | 142 | 145 | 132 | 105 | 105 | 103 | 71 | 71 | 72 | 74 | 52 | 709 | 476 | 322 | 146 | 108 | 77 | 44 | 26 | 26 | 13 | 12 |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | ENE 8 | NE 8 | NE 8 | NE 11 | NE 11 | NE 11 | NE 11 | NNE 7 | NNE 7 | ESE 10 | ESE 10 | S 6 | S 6 | ESE 11 | — | S 6 | — | — | SE 12 |
| kJ | 27 | 19 | 11 | 11 | 10 | 6 | 3 | 3 | 5 | 5 | 5 | 5 | 9 | 37 | 51 | 51 | 28 | 19 | 12 | — | 3 | — | — | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | N 12 | NE 12 | NE 12 | NE 11 | NE 8 | NE 8 | — | N 7 | NE 10 | ESE 10 | SSE 8 | SSE 8 | SSE 8 | — | — | — | — | — | — | SE 12 |
| kJ | — | — | — | — | 3 | 6 | 6 | 5 | 3 | 3 | — | 1 | 4 | 52 | 6 | 6 | 6 | — | — | — | — | — | — | 6 |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | N 7 | NNE 8 | NNE 9 | NE 9 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 103 | 117 | 166 | 249 | 375 | 605 | 715 | 640 | 606 | 578 | 664 | 800 | 927 | 906 | 181 | 720 | 1564 | 1664 | 1575 | 1507 | 1304 | 1144 | 1020 | 971 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 196 | 196 | 196 | 497 | 280 | 249 | 228 | 196 | 218 | 204 | 227 | 227 | 227 | 227 | 227 | 480 | 546 | 546 | 770 | 768 | 830 | 802 | 768 | 257 |
Best forecast wave conditions in Izu Islands | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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