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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Tuesday 19 May 2026 JSTForecast update in hr min s Forecast update imminent
Aoshima Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aoshima Harbour sea temperature is
23.1° C
(Which is normal for this time of year)How big are the waves at Aoshima Harbour today?
The current surf forecast for Aoshima Harbour at 12AM is: 0.9m 9s primary swell from a East-southeast direction and 1.1m 7s secondary swell from a Southeast direction (forecast issued at 08:00pm May 19). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 4.5ft (1.3m) | 7s |
| Afternoon (20 May) | 3ft (0.9m) | 10s |
| Evening (20 May) | 4.5ft (1.4m) | 8s |
Table - waves today at Aoshima Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Tue night. Warm (max 26°C on Wed afternoon, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | SE 7 | SE 7 | ESE 10 | SE 8 | SE 8 | S 7 | ESE 10 | ESE 10 | ESE 10 | S 7 | S 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | |
147 | 144 | 144 | 147 | 166 | 169 | 255 | 169 | 248 | 229 | 206 | 210 | 210 | 163 | 150 | 173 | 210 | 262 | 176 | 134 | 92 | 94 | 94 | 71 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | glassy | cross | cross-on | glassy | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | on | cross-on | |
High Tide | 8:33PM1.85m | 7:13AM1.89m | 9:21PM1.79m | 7:53AM1.79m | 10:14PM1.72m | 8:42AM1.67m | ||||||||||||||||||
Low Tide | 1:49AM1.08m | 2:17PM0.06m | 2:35AM1.14m | 3:02PM0.19m | 3:32AM1.18m | |||||||||||||||||||
 |  | |  |  |  |  | | |  |  | | | | | | |  | | |  | | | | |
 | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — |
 | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | 7:07 |
— | 1 | 5 | 8 | 2 | — | 1 | 1 | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 21 | 21 | 21 | 22 | 23 | 26 | 25 | 24 | 23 | 22 | 23 | 26 | 24 | 23 | 24 | 23 | 21 | 19 | 19 | 22 | 23 | 23 |
22 | 23 | 23 | 24 | 23 | 25 | 26 | 26 | 26 | 26 | 25 | 23 | 25 | 26 | 22 | 24 | 26 | 24 | 21 | 18 | 19 | 22 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | S 7 | S 7 | S 6 | S 6 | ESE 10 | ESE 10 | ESE 10 |
 kJ | 147 | 105 | 130 | 119 | 128 | 140 | 255 | 91 | 248 | 229 | 86 | 210 | 210 | 163 | 129 | 126 | 100 | 159 | 88 | 65 | 37 | 94 | 94 | 71 |
Swell 2 Height (m) Direction Period (s) | SE 6 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 6 | ESE 10 | S 7 | S 7 | ESE 10 | S 7 | S 7 | — | — | — | — | ESE 9 | ESE 9 | ESE 10 | ESE 9 | S 6 | S 6 | S 6 |
| kJ | 59 | 144 | 144 | 147 | 166 | 169 | 57 | 169 | 22 | 42 | 166 | 55 | 94 | — | — | — | — | 100 | 100 | 103 | 92 | 26 | 18 | 19 |
Swell 3 Height (m) Direction Period (s) | E 8 | SE 11 | — | — | — | — | — | — | — | — | S 7 | SE 7 | — | — | — | — | — | — | — | — | — | SW 6 | SW 6 | NE 5 |
| kJ | 51 | 31 | — | — | — | — | — | — | — | — | 69 | 44 | — | — | — | — | — | — | — | — | — | 6 | 14 | 1 |
Wind waves Height (m) Direction Period (s) | SE 6 | — | — | — | — | — | SSE 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | — | WSW 7 | — | — |
| kJ | 88 | — | — | — | — | — | 165 | 56 | 70 | 104 | 206 | 179 | 149 | 110 | 150 | 173 | 210 | 262 | 176 | 134 | — | 53 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 284 | 49 | 39 | 0 | 19 | 18 | 0 | 284 | 284 | 0 | 0 | 0 | 0 | 312 | 630 | 330 | 0 | 0 | 0 | 0 | 0 | 0 | 284 | 326 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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