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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 am Sunday 31 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
23.9° C
(Which is normal for this time of year)How big are the waves at Aoshima Harbour today (31 May):
- Morning surf: Morning surf (31 May, local time) - 3.5ft (1.0m), 12s period with SSE swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 4.5ft (1.3m), 12s period with SSE swell.
- Evening surf: Evening surf (31 May, local time) - 4.5ft (1.3m), 11s period with SSE swell.
The current surf forecast for Aoshima Harbour at 4PM is: 1.3m 12s primary swell from a South-southeast direction and 0.7m 11s secondary swell from a East direction, 0.4m 4s secondary swell from a East-northeast direction (forecast issued at 08:00am May 31). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 3.5ft (1.0m) | 12s |
| Afternoon (31 May) | 4.5ft (1.3m) | 12s |
| Evening (31 May) | 4.5ft (1.3m) | 11s |
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 278mm), heaviest during Tue night. Warm (max 24°C on Tue night, min 20°C on Sun morning). Winds increasing (light winds from the SE on Sun night, severe gales from the ENE by Tue night). | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SE 11 | SE 13 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | S 13 | S 13 | S 13 | S 13 | S 13 | ESE 8 | ESE 9 | SE 11 | SSE 14 | SSE 14 | SSE 12 | |
265 | 320 | 390 | 436 | 371 | 451 | 515 | 1524 | 790 | 880 | 836 | 823 | 958 | 919 | 905 | 878 | 987 | 867 | 1616 | 3916 | 10794 | 11502 | 7108 | 2953 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross | cross | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross | |
High Tide | 5:03AM2.00m | 6:46PM1.97m | 5:37AM2.01m | 7:27PM1.96m | 6:13AM2.00m | 8:09PM1.94m | ||||||||||||||||||
Low Tide | 11:55AM-0.04m | 00:09AM1.03m | 12:33PM-0.07m | 00:48AM1.07m | 1:11PM-0.05m | 1:27AM1.10m | ||||||||||||||||||
 | | |  | |  |  | | | |  | |  |  |  | | |  | | | | | | | |
 | 5:09 | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 |
 | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:14 | — | — | — | — | — | — | — | 7:14 | — | — | 7:15 |
— | — | — | — | — | — | — | — | — | — | 1 | 4 | 8 | 10 | 11 | 7 | 10 | 25 | 26 | 39 | 33 | 57 | 38 | 9 | |
Temp °C | 22 | 22 | 20 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 21 | 22 | 22 | 23 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 24 |
22 | 21 | 18 | 21 | 21 | 22 | 21 | 22 | 21 | 21 | 21 | 21 | 23 | 23 | 24 | 23 | 21 | 20 | 20 | 17 | 14 | 11 | 13 | 17 | |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SE 11 | SE 13 | SE 8 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 11 | S 14 | S 13 | SSE 14 | SSE 14 | E 10 |
 kJ | 265 | 320 | 390 | 436 | 371 | 451 | 515 | 1524 | 314 | 880 | 836 | 823 | 958 | 919 | 905 | 878 | 987 | 865 | 733 | 1036 | 8580 | 11502 | 7108 | 2034 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | E 10 | E 11 | SE 5 | SSE 14 | E 10 | SSE 14 | ESE 8 | ESE 8 | E 10 | E 10 | E 10 | E 10 | E 9 | SE 12 | — | — | — | — | ESE 11 | ESE 11 | SSE 12 |
| kJ | 114 | 149 | 112 | 108 | 112 | 53 | 395 | 77 | 790 | 300 | 280 | 71 | 73 | 70 | 70 | 64 | 6 | — | — | — | — | 4232 | 3110 | 2953 |
Swell 3 Height (m) Direction Period (s) | S 15 | — | — | S 15 | SSE 15 | E 11 | E 10 | SE 12 | E 10 | E 10 | E 10 | — | — | ESE 12 | SE 12 | — | — | — | — | — | — | — | E 10 | ENE 10 |
| kJ | 115 | — | — | 205 | 176 | 112 | 108 | 25 | 75 | 71 | 50 | — | — | 15 | 6 | — | — | — | — | — | — | — | 1370 | 910 |
Wind waves Height (m) Direction Period (s) | — | NE 3 | NE 4 | ENE 4 | ESE 4 | — | — | — | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 9 | SE 11 | — | NW 5 | N 8 |
| kJ | — | 5 | 3 | 5 | 13 | — | — | — | 204 | 186 | 217 | 236 | 258 | 286 | 372 | 465 | 559 | 867 | 1616 | 3916 | 10794 | — | 35 | 687 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 22 | 39 | 3 | 284 | 2028 | 49 | 39 | 52 | 202 | 202 | 49 | 202 | 202 | 202 | 202 | 202 | 202 | 202 | 202 | 431 | 496 | 496 | 496 | 496 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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