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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Tuesday 28 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
21.7° 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 11PM is: 0.2m 12s primary swell from a East-southeast direction and 0.3m 5s secondary swell from a South-southwest direction, 0.3m 8s secondary swell from a East direction (forecast issued at 08:00pm April 28). An open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | - | - |
| Afternoon (28 Apr) | - | - |
| Evening (28 Apr) | 0.5ft (0.2m) | 12s |
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 54mm), heaviest during Thu afternoon. Warm (max 20°C on Wed morning, min 15°C on Wed night). Winds increasing (calm on Wed morning, fresh winds from the N by Thu afternoon). | ||||||||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 1 | |||||||||||||||||||||
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 | ESE 12 | ESE 12 | E 8 | E 8 | NNE 5 | SE 10 | NE 5 | NE 5 | NE 6 | NE 6 | NE 6 | ESE 10 | ESE 10 | ESE 10 | ENE 6 | E 6 | E 6 | E 6 | ESE 7 | E 7 | E 8 | E 8 | E 8 | |
18 | 13 | 13 | 12 | 12 | 14 | 17 | 12 | 24 | 58 | 54 | 20 | 19 | 18 | 31 | 65 | 83 | 129 | 108 | 108 | 215 | 187 | 163 | 113 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 4:00PM1.70m | 4:14AM1.83m | 4:46PM1.83m | 4:41AM1.89m | 5:28PM1.91m | 5:09AM1.94m | ||||||||||||||||||
Low Tide | 10:04PM0.51m | 10:31AM0.36m | 10:43PM0.54m | 11:05AM0.18m | 11:19PM0.59m | 11:38AM0.04m | ||||||||||||||||||
 |  | |  |  | | |  | |  |  |  |  |  | | |  | | |  | | | | | |
 | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — | — | — | — |
 | 6:51 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | 6:52 |
— | — | — | — | — | — | — | — | — | — | 3 | 6 | 6 | 5 | 10 | 9 | 11 | 2 | 1 | 1 | — | — | — | — | |
Temp °C | 23 | 19 | 18 | 18 | 18 | 19 | 20 | 20 | 18 | 16 | 15 | 15 | 15 | 15 | 15 | 16 | 17 | 16 | 17 | 17 | 16 | 17 | 20 | 20 |
22 | 18 | 17 | 19 | 19 | 20 | 18 | 19 | 14 | 13 | 14 | 13 | 12 | 11 | 11 | 11 | 14 | 14 | 16 | 16 | 12 | 11 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | E 8 | SSW 5 | SSW 5 | E 8 | E 8 | E 8 | NE 5 | ESE 10 | E 8 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 9 | SE 10 | E 6 | E 6 | ESE 7 | E 7 | E 8 | E 8 | E 8 |
 kJ | 18 | 7 | 4 | 10 | 10 | 10 | 8 | 11 | 4 | 10 | 10 | 20 | 19 | 18 | 30 | 13 | 23 | 83 | 108 | 108 | 215 | 187 | 163 | 113 |
Swell 2 Height (m) Direction Period (s) | ESE 12 | E 8 | E 8 | SSW 4 | ESE 11 | ESE 11 | SE 10 | E 8 | ESE 10 | E 8 | E 8 | E 8 | SE 8 | SE 8 | E 9 | E 9 | E 9 | SE 9 | SE 8 | ENE 7 | S 7 | S 7 | S 7 | NE 7 |
| kJ | 14 | 10 | 10 | 2 | 12 | 11 | 17 | 4 | 11 | 1 | 5 | 5 | 3 | 3 | 15 | 7 | 7 | 21 | 28 | 73 | 35 | 33 | 14 | 11 |
Swell 3 Height (m) Direction Period (s) | SE 7 | ESE 12 | ESE 12 | ESE 11 | S 4 | NNE 4 | E 8 | SE 5 | SE 5 | SE 6 | SE 6 | E 10 | ESE 11 | ESE 11 | SE 5 | — | — | E 9 | S 8 | S 7 | — | — | S 7 | S 6 |
| kJ | 2 | 13 | 13 | 12 | 2 | 2 | 4 | 1 | 1 | 1 | 2 | 2 | 11 | 11 | 1 | — | — | 6 | 29 | 52 | — | — | 23 | 7 |
Wind waves Height (m) Direction Period (s) | SSW 5 | SW 5 | SW 4 | SW 4 | NNE 3 | NNE 5 | — | NE 5 | NE 5 | NE 6 | NE 6 | NE 6 | NE 5 | NE 4 | NE 5 | ENE 6 | E 6 | E 6 | — | NW 2 | WSW 2 | W 3 | W 3 | W 3 |
| kJ | 7 | 31 | 9 | 4 | 1 | 14 | — | 12 | 24 | 58 | 54 | 19 | 11 | 12 | 31 | 65 | 83 | 129 | — | 2 | 1 | 5 | 4 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 2045 | 39 | 65 | 284 | 65 | 284 | 854 | 312 | 850 | 803 | 708 | 1235 | 1235 | 797 | 1235 | 688 | 39 | 118 | 39 | 3 | 0 | 0 | 39 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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