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Surf Forecasts:
Nagata surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 am Monday 20 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
20.1° C
(Which is 1.5°C colder than average for this time of year)How big are the waves at Nagata today?
The current surf forecast for Nagata at 11AM is: 2.1m 13s primary swell from a East-southeast direction and 0.4m 5s secondary swell from a West-southwest direction (forecast issued at 08:00am April 20). An open ocean swell of 0.3m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Apr) | 7ft (2.2m) | 13s |
| Afternoon (20 Apr) | 6ft (1.9m) | 13s |
| Evening (20 Apr) | 6ft (1.8m) | 13s |
Table - waves today at Nagata. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 20 | Tuesday 21 | Wednesday 22 | Thu 23 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1760 | 1643 | 1430 | 1211 | 1041 | 1009 | 794 | 692 | 661 | 650 | 560 | 336 | 364 | 344 | 338 | 387 | 434 | 354 | 294 | 294 | 242 | 242 | 200 | 400 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- on | glass | cross | cross | cross | cross | cross- off | off | off | off | off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | off | cross- off |
High Tide / height (m) | 7:23AM 1.87 | 8:40PM 1.73 | 7:52AM 1.81 | 9:25PM 1.62 | 8:24AM 1.72 | 10:20PM 1.50 | ||||||||||||||||||
Low Tide / height (m) | 2:03PM -0.01 | 2:10AM 0.78 | 2:41PM 0.07 | 2:44AM 0.90 | 3:24PM 0.19 | |||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thu 23 | |||||||||||||||||||||
| Sunrise | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:39 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:46 | - | - | - |
 |  | |  | |  |  | | |  | | | | |  | | | | | | |  |  |  | |
Rain (mm) | 32 | 5 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 7 | 13 |
| Temp. °C | 17 | 19 | 20 | 21 | 20 | 18 | 17 | 17 | 16 | 18 | 20 | 20 | 18 | 17 | 16 | 16 | 16 | 19 | 21 | 21 | 18 | 17 | 17 | 17 |
| Feels °C (?) | 17 | 19 | 21 | 21 | 22 | 18 | 17 | 16 | 15 | 18 | 17 | 14 | 14 | 14 | 13 | 14 | 14 | 18 | 19 | 19 | 18 | 16 | 15 | 16 |
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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 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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