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Surf Forecasts:
Uchiumi surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 pm Monday 20 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Uchiumi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Uchiumi sea temperature is
21.1° C
(Which is normal for this time of year)How big are the waves at Uchiumi today?
The current surf forecast for Uchiumi at 5AM is: 1.5m 12s primary swell from a East-southeast direction and 0.1m 16s secondary swell from a Southeast direction (forecast issued at 08:00pm April 20). 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 Uchiumi. (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 Uchiumi 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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