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Surf Forecasts:
Hashikui Bay surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Monday 18 May 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
21.3° 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 11PM is: 0.4m 10s primary swell from a Southeast direction and 0.4m 4s secondary swell from a Southeast direction (forecast issued at 08:00pm May 18). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | - | - |
| Evening (18 May) | 1.5ft (0.4m) | 10s |
Table - waves today at Hashikui Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Wed morning. Warm (max 24°C on Thu afternoon, min 18°C on Mon night). Winds increasing (calm on Wed morning, fresh winds from the SSW by Thu morning). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | S 6 | S 6 | S 6 | S 7 | S 7 | S 7 | SSW 7 | |
26 | 27 | 28 | 28 | 28 | 71 | 71 | 72 | 72 | 92 | 92 | 92 | 90 | 90 | 89 | 84 | 82 | 112 | 109 | 109 | 167 | 233 | 266 | 431 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | glassy | glassy | glassy | glassy | cross-off | glassy | off | off | off | off | off | off | |
High Tide | 7:27PM1.69m | 6:19AM1.74m | 8:10PM1.63m | 6:55AM1.69m | 8:56PM1.57m | 7:34AM1.61m | ||||||||||||||||||
Low Tide | 00:49AM0.90m | 1:16PM0.01m | 1:26AM0.95m | 1:57PM0.10m | 2:09AM1.00m | 2:42PM0.22m | ||||||||||||||||||
 |  | | | | | | | |  |  | |  |  |  | | | | | | | | | | |
 | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:56 | — | — | — | — |
 | 6:57 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | 6:59 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 2 | 2 | 1 | — | — | — | — | 1 | 3 | — | |
Temp °C | 22 | 20 | 19 | 18 | 18 | 22 | 23 | 23 | 22 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 24 |
22 | 21 | 20 | 18 | 18 | 22 | 21 | 22 | 23 | 21 | 21 | 21 | 22 | 23 | 25 | 24 | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 24 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 4 | SE 10 | SE 7 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | S 6 | SE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 10 |
 kJ | 26 | 27 | 3 | 28 | 19 | 71 | 71 | 72 | 72 | 92 | 92 | 92 | 90 | 90 | 89 | 84 | 82 | 112 | 79 | 63 | 60 | 56 | 55 | 44 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 8 | SE 10 | SE 7 | SE 10 | SE 11 | — | — | — | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | — | — | SE 10 | — | — | — | — | — | — |
| kJ | 9 | 15 | 28 | 8 | 28 | 18 | — | — | — | 4 | 19 | 15 | 15 | 15 | 23 | — | — | 80 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 12 | — | SE 8 | — | — | — | — | — | — | — | — | — | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | — | 14 | — | — | — | — | — | — | — | — | — | 5 | 1 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSE 4 | SSE 3 | SSE 4 | — | — | — | SSE 2 | SSE 3 | SSE 3 | SSE 7 | — | — | — | SSE 7 | SSE 5 | SSE 6 | — | S 6 | S 6 | S 7 | S 7 | S 7 | SSW 7 |
| kJ | 7 | 5 | 2 | 2 | — | — | — | 1 | 3 | 2 | 15 | — | — | — | 26 | 39 | 83 | — | 109 | 109 | 167 | 233 | 266 | 431 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 563 | 29 | 29 | 16 | 16 | 16 | 16 | 0 | 29 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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