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Surf Forecasts:
Nagata surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 2 am Tuesday 21 Apr 2026 JSTForecast update in hr min s Forecast update imminent
Nagata surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nagata sea temperature is
20.3° C
(Which is 1.4°C colder than average for this time of year)How big are the waves at Nagata today?
The current surf forecast for Nagata at 10AM is: 1.5m 12s primary swell from a East direction and 0.3m 5s secondary swell from a West-southwest direction (forecast issued at 02:00am April 21). The wind direction is predicted to be glassy 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) | 4ft (1.2m) | 11s |
Table - waves today at Nagata. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 794 | 781 | 661 | 650 | 702 | 397 | 364 | 344 | 338 | 387 | 432 | 352 | 345 | 294 | 290 | 290 | 290 | 340 | 128 | 125 | 125 | 462 | 239 | 159 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- off | cross- off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | on | off | off | off | off |
High Tide / height (m) | 7:52AM 1.81 | 9:25PM 1.62 | 8:24AM 1.72 | 10:20PM 1.50 | 9:02AM 1.60 | |||||||||||||||||||
Low Tide / height (m) | 2:10AM 0.78 | 2:41PM 0.07 | 2:44AM 0.90 | 3:24PM 0.19 | 3:27AM 1.01 | 4:18PM 0.34 | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||||
| Sunrise | - | - | 5:41 | - | - | - | - | - | - | - | 5:39 | - | - | - | - | - | - | - | 5:39 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:47 | - |
 |  |  |  | | | |  | | | | | | | |  |  |  |  | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 7 | 14 | 22 | 27 | 1 | 3 | 3 | 1 |
| Temp. °C | 18 | 17 | 17 | 19 | 21 | 20 | 19 | 17 | 17 | 16 | 16 | 19 | 20 | 20 | 18 | 18 | 18 | 19 | 18 | 19 | 18 | 17 | 15 | 15 |
| Feels °C (?) | 18 | 16 | 16 | 19 | 20 | 14 | 14 | 14 | 15 | 14 | 15 | 18 | 19 | 19 | 17 | 18 | 17 | 19 | 19 | 17 | 19 | 16 | 13 | 12 |
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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 Nagata 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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