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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Wednesday 20 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
22.9° 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: 1.3m 10s primary swell from a East-southeast direction and 0.8m 7s secondary swell from a South direction, 1.0m 7s secondary swell from a South direction (forecast issued at 08:00pm May 20). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 3.5ft (1.0m) | 10s |
| Afternoon (21 May) | 4.5ft (1.3m) | 7s |
| Evening (21 May) | 5ft (1.5m) | 7s |
Table - waves today at Aoshima Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Sat afternoon. Warm (max 26°C on Thu morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||||||||
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 10 | ESE 10 | ESE 10 | ESE 10 | S 7 | ESE 10 | ESE 10 | S 7 | SSW 7 | S 7 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | |
332 | 296 | 290 | 214 | 163 | 172 | 130 | 152 | 340 | 200 | 123 | 100 | 92 | 100 | 94 | 100 | 69 | 76 | 76 | 76 | 103 | 68 | 66 | 108 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | off | off | cross-off | off | cross-off | cross-off | off | off | off | off | off | cross-on | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | glassy | |
High Tide | 9:21PM1.79m | 7:53AM1.79m | 10:14PM1.72m | 8:42AM1.67m | 11:13PM1.68m | 9:50AM1.54m | ||||||||||||||||||
Low Tide | 2:35AM1.14m | 3:02PM0.19m | 3:32AM1.18m | 3:54PM0.35m | 4:47AM1.17m | |||||||||||||||||||
 |  |  | |  | | |  | |  | | |  | | | | | |  | | | | | | |
 | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — |
 | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | 7:07 |
— | — | — | — | — | — | — | 3 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | |
Temp °C | 25 | 23 | 23 | 23 | 23 | 25 | 26 | 24 | 24 | 23 | 22 | 21 | 19 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 21 |
26 | 25 | 26 | 25 | 24 | 26 | 26 | 24 | 27 | 25 | 23 | 22 | 20 | 24 | 21 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 23 | 24 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSE 7 | ESE 10 | ESE 10 | ESE 9 | S 7 | S 7 | S 7 | S 6 | S 6 | ESE 9 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 |
 kJ | 332 | 296 | 290 | 214 | 96 | 172 | 129 | 126 | 179 | 128 | 86 | 54 | 38 | 100 | 94 | 100 | 69 | 76 | 76 | 76 | 103 | 68 | 66 | 108 |
Swell 2 Height (m) Direction Period (s) | ESE 6 | S 7 | S 7 | SSE 7 | ESE 10 | S 7 | — | — | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | NE 4 | SSE 6 | SSE 6 | ENE 9 |
| kJ | 71 | 59 | 56 | 77 | 163 | 94 | — | — | 100 | 100 | 100 | 100 | 92 | 28 | 18 | 17 | 17 | 15 | 10 | 9 | 1 | 12 | 14 | 44 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 6 | — | — | — | — | — | — | — | — | — | — | — | NE 5 | NE 5 | NE 4 | NE 6 | NNE 6 | NNE 5 | NNE 4 | NE 4 | NE 4 | — |
| kJ | — | — | 58 | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 3 | 3 | 4 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | S 7 | SSE 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | S 7 | S 6 | — | SW 6 | WNW 3 | — | S 6 | — | — | — | — | — | — | SE 2 | SE 3 |
| kJ | 43 | 166 | 86 | 173 | 154 | 149 | 130 | 152 | 340 | 200 | 123 | — | 52 | 1 | — | 24 | — | — | — | — | — | — | 1 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 284 | 0 | 0 | 0 | 0 | 284 | 0 | 284 | 0 | 0 | 0 | 0 | 0 | 0 | 284 | 326 | 49 | 39 | 39 | 39 | 39 | 49 | 49 | 0 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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