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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 2 am Tuesday 31 Mar 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
18.9° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Aoshima Harbour today?
The current surf forecast for Aoshima Harbour at 6AM is: 3.5m 9s primary swell from a South direction and 2.5m 8s secondary swell from a South-southeast direction, 0.3m 10s secondary swell from a East direction (forecast issued at 02:00am March 31). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Mar) | 10ft (3.0m) | 9s |
| Afternoon (31 Mar) | 8ft (2.5m) | 8s |
| Evening (31 Mar) | 4.5ft (1.3m) | 8s |
Table - waves today at Aoshima Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 31 | Wednesday 01 | Thursday 02 | ||||||||||||||||||||||
| 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 5 | 7 | 7 | 7 | 8 | 7 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 727 | 908 | 1667 | 1331 | 1051 | 935 | 662 | 207 | 165 | 134 | 99 | 75 | 59 | 48 | 35 | 35 | 41 | 46 | 24 | 24 | 24 | 25 | 27 | 21 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | cross- off | cross- off | off | cross- off | off | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | glass | off | cross- off | cross- off | off | cross- off | cross- off | cross- on | cross- off |
High Tide / height (m) | 5:04AM 1.81 | 5:00PM 1.83 | 5:29AM 1.86 | 5:40PM 1.92 | 5:53AM 1.90 | 6:18PM 1.97 | ||||||||||||||||||
Low Tide / height (m) | 10:40PM 0.22 | 11:02AM 0.47 | 11:16PM 0.21 | 11:33AM 0.30 | 11:49PM 0.25 | 12:03PM 0.15 | ||||||||||||||||||
Tuesday 31 | Wednesday 01 | Thursday 02 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:32 | - |
 |  |  |  | |  | |  |  |  | |  | |  | | | | | | | | | | | |
Rain (mm) | 4 | 21 | 4 | - | - | - | - | - | - | - | 2 | 7 | 6 | 1 | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 20 | 21 | 22 | 21 | 20 | 19 | 17 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 14 | 13 | 12 | 12 | 15 | 19 | 20 | 18 | 16 |
| Feels °C (?) | 18 | 19 | 20 | 21 | 18 | 17 | 18 | 16 | 13 | 14 | 12 | 10 | 10 | 10 | 11 | 14 | 12 | 10 | 9 | 13 | 16 | 17 | 15 | 15 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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