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Surf Forecasts:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Monday 20 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
21.1° 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 2AM is: 1.6m 12s primary swell from a East-southeast direction and 0.3m 5s secondary swell from a South direction (forecast issued at 08:00pm April 20). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 5ft (1.5m) | 12s |
| Afternoon (21 Apr) | 4ft (1.2m) | 12s |
| Evening (21 Apr) | 3.5ft (1.1m) | 11s |
Table - waves today at Aoshima Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
| 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 | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1077 | 917 | 715 | 692 | 579 | 636 | 425 | 411 | 313 | 297 | 291 | 389 | 382 | 313 | 254 | 254 | 259 | 275 | 229 | 229 | 229 | 141 | 136 | 229 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | on | on | on | cross- on | cross- on | on | cross- on | on | cross- on | cross- on |
High Tide / height (m) | 8:35PM 1.76 | 7:31AM 1.84 | 9:26PM 1.65 | 8:03AM 1.74 | 10:30PM 1.54 | 8:43AM 1.61 | ||||||||||||||||||
Low Tide / height (m) | 1:56AM 0.92 | 2:30PM 0.06 | 2:34AM 1.05 | 3:16PM 0.19 | 3:24AM 1.16 | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - |
| Sunset | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - |
 |  |  | |  | |  | | | | |  | | | | | | |  |  |  | |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 6 | 12 | 25 | 8 | 2 |
| Temp. °C | 20 | 19 | 18 | 18 | 17 | 18 | 19 | 19 | 19 | 19 | 18 | 17 | 16 | 17 | 18 | 18 | 19 | 19 | 15 | 15 | 15 | 16 | 16 | 15 |
| Feels °C (?) | 22 | 20 | 18 | 18 | 17 | 18 | 13 | 12 | 15 | 16 | 16 | 15 | 14 | 16 | 17 | 16 | 17 | 16 | 12 | 12 | 10 | 11 | 10 | 10 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aoshima Harbour surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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