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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Thursday 23 Apr 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
21.6° 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 4AM is: 0.8m 7s primary swell from a South direction and 0.5m 10s secondary swell from a East direction, 0.7m 6s secondary swell from a Northeast direction (forecast issued at 08:00pm April 23). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 3ft (0.9m) | 6s |
| Afternoon (24 Apr) | 6ft (1.9m) | 7s |
| Evening (24 Apr) | 7ft (2.1m) | 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 38mm), heaviest during Sat night. Very mild (max 18°C on Sat night, min 15°C on Fri morning). Winds increasing (light winds from the NNE on Thu night, strong winds from the NNE by Sun afternoon). | ||||||||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
S 7 | S 7 | NNE 6 | S 7 | SE 13 | NE 6 | ENE 7 | NE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 8 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 | |
155 | 100 | 137 | 59 | 44 | 60 | 67 | 394 | 560 | 569 | 650 | 694 | 813 | 692 | 660 | 798 | 828 | 859 | 1148 | 1527 | 1464 | 1303 | 1275 | 1367 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | |
High Tide | 11:57PM1.49m | 9:44AM1.46m | 1:29AM1.52m | 11:46AM1.36m | 2:30AM1.60m | 1:48PM1.41m | ||||||||||||||||||
Low Tide | 4:15PM0.33m | 4:54AM1.23m | 5:35PM0.46m | 7:12AM1.17m | 7:06PM0.52m | 8:34AM0.99m | ||||||||||||||||||
 |  | |  |  | | | | | | | | | | | | |  | | | | |  |  | |
 | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — |
 | 6:47 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:49 | — | — | — | — | — | — | 6:50 |
2 | 1 | 1 | — | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | 6 | 5 | 2 | 3 | 4 | 6 | 4 | |
Temp °C | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 18 | 18 | 18 | 18 | 17 | 17 |
16 | 15 | 15 | 14 | 12 | 11 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 14 | 15 | 15 | 14 | 14 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | ENE 7 | ENE 7 | ENE 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 9 | E 9 | E 9 |
 kJ | 155 | 100 | 77 | 59 | 44 | 44 | 67 | 167 | 287 | 341 | 412 | 483 | 487 | 487 | 529 | 595 | 670 | 637 | 810 | 1146 | 1134 | 1075 | 1029 | 1029 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | NE 6 | E 10 | E 10 | E 9 | S 7 | S 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 6 | S 6 | — | — | — | — | — | — | — | — |
| kJ | 65 | 65 | 36 | 45 | 44 | 42 | 32 | 22 | 14 | 14 | 8 | 8 | 8 | 4 | 3 | 3 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | ESE 13 | ESE 13 | E 10 | SE 13 | SE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | W 7 | SW 7 | SE 12 | E 15 | SE 14 | — | — | — | — | — | — | — | — | — |
| kJ | 67 | 66 | 45 | 42 | 41 | 29 | 28 | 29 | 28 | 14 | 1 | 2 | 22 | 4 | 8 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 6 | NNE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 8 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 |
| kJ | 18 | 46 | 137 | 35 | 40 | 60 | 43 | 394 | 560 | 569 | 650 | 694 | 813 | 692 | 660 | 798 | 828 | 859 | 1148 | 1527 | 1464 | 1303 | 1275 | 1367 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 39 | 39 | 39 | 39 | 49 | 49 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 50 | 297 | 39 | 39 | 39 | 284 | 284 | 49 | 297 | 297 | 288 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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