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Surf Forecasts:
Hashikui Bay surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Monday 20 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Hashikui Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hashikui Bay sea temperature is
19.0° C
(Which is normal for this time of year)How big are the waves at Hashikui Bay today?
The current surf forecast for Hashikui Bay at 2AM is: 1.1m 12s primary swell from a Southeast direction and 0.9m 6s secondary swell from a Southeast direction (forecast issued at 08:00pm April 20). An open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 3ft (0.9m) | 12s |
| Afternoon (21 Apr) | 2.5ft (0.7m) | 11s |
| Evening (21 Apr) | 2ft (0.6m) | 11s |
Table - waves today at Hashikui Bay. (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 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 14 | 14 | 14 | 13 | 10 | 13 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 418 | 347 | 336 | 367 | 325 | 243 | 166 | 123 | 105 | 76 | 75 | 58 | 39 | 38 | 38 | 30 | 28 | 28 | 28 | 27 | 27 | 27 | 44 | 43 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | glass | cross- on | glass | glass | cross | glass | glass | cross- off | cross | cross- on | cross- on |
High Tide / height (m) | 8:12PM 1.56 | 7:11AM 1.64 | 9:00PM 1.45 | 7:43AM 1.55 | 10:02PM 1.34 | 8:21AM 1.44 | ||||||||||||||||||
Low Tide / height (m) | 1:34AM 0.81 | 2:08PM 0.08 | 2:09AM 0.92 | 2:54PM 0.20 | 2:54AM 1.02 | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:22 | - | - | - |
| Sunset | 6:35 | - | - | - | - | - | - | - | 6:36 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - |
 |  |  | |  |  | |  | |  | | | | | | | |  | | | |  | |  | |
Rain (mm) | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 12 |
| Temp. °C | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 19 | 16 | 13 | 12 | 12 | 11 | 17 | 19 | 18 | 17 | 17 | 17 | 16 | 15 | 12 | 12 | 11 |
| Feels °C (?) | 17 | 18 | 17 | 17 | 17 | 11 | 10 | 12 | 11 | 9 | 8 | 8 | 7 | 14 | 16 | 16 | 16 | 15 | 15 | 14 | 12 | 10 | 10 | 9 |
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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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