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Surf Forecasts:
Kojima surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 am Wednesday 15 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Kojima surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kojima sea temperature is
20.0° C
(Which is 1.3°C colder than average for this time of year)How big are the waves at Kojima today?
The current surf forecast for Kojima at 1PM is: 1.1m 17s primary swell from a Southeast direction and 1.5m 13s secondary swell from a East-southeast direction (forecast issued at 08:00am April 15). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Apr) | 5.5ft (1.7m) | 13s |
| Afternoon (15 Apr) | 4ft (1.2m) | 16s |
| Evening (15 Apr) | 7ft (2.1m) | 16s |
Table - waves today at Kojima. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||||||||
| 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 | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 13 | 13 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 15 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 839 | 853 | 689 | 767 | 1953 | 2257 | 1909 | 1860 | 1521 | 1307 | 1716 | 1761 | 1606 | 1563 | 1441 | 1460 | 1441 | 1343 | 1325 | 1325 | 1441 | 1480 | 1628 | 1672 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on |
High Tide / height (m) | 4:55AM 1.75 | 5:15PM 1.83 | 5:21AM 1.81 | 5:56PM 1.90 | 5:47AM 1.85 | 6:35PM 1.92 | ||||||||||||||||||
Low Tide / height (m) | 11:02AM 0.36 | 11:21PM 0.41 | 11:35AM 0.20 | 11:54PM 0.46 | 12:08PM 0.07 | 12:26AM 0.54 | ||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||||||||
| Sunrise | 5:47 | - | - | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:42 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - |
 |  |  | | |  | |  | | | | | | | | |  | | | | | |  | | |
Rain (mm) | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 20 | 22 | 23 | 21 | 19 | 19 | 18 | 17 | 19 | 20 | 20 | 19 | 17 | 17 | 17 | 19 | 19 | 20 | 20 | 19 | 19 | 19 | 19 |
| Feels °C (?) | 22 | 21 | 22 | 22 | 23 | 20 | 19 | 18 | 13 | 13 | 13 | 14 | 15 | 14 | 15 | 14 | 16 | 17 | 17 | 16 | 15 | 16 | 17 | 17 |
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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 Kojima 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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