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Surf Forecasts:
Nagata surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 8 am Wednesday 20 May 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
22.5° C
(Which is slightly cooler than normal)How big are the waves at Nagata today?
The current surf forecast for Nagata at 4PM is: 1.4m 7s primary swell from a Southeast direction and 0.9m 10s secondary swell from a East-southeast direction, 0.8m 7s secondary swell from a South direction (forecast issued at 08:00am May 20). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 4.5ft (1.3m) | 7s |
| Afternoon (20 May) | 4.5ft (1.4m) | 7s |
| Evening (20 May) | 4ft (1.2m) | 10s |
Table - waves today at Nagata. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Thu afternoon. Warm (max 26°C on Wed morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 7 | SE 7 | SE 7 | SE 7 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSW 6 | SSW 7 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | |
183 | 169 | 289 | 200 | 392 | 258 | 218 | 214 | 210 | 163 | 156 | 212 | 273 | 132 | 105 | 103 | 103 | 103 | 103 | 105 | 105 | 103 | 100 | 113 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | off | cross-off | cross-off | off | |
High Tide | 7:34AM1.86m | 9:21PM1.73m | 8:13AM1.77m | 10:10PM1.66m | 8:59AM1.66m | 11:05PM1.61m | ||||||||||||||||||
Low Tide | 2:29PM0.09m | 2:42AM1.00m | 3:12PM0.21m | 3:33AM1.05m | 4:01PM0.36m | |||||||||||||||||||
 |  |  |  |  |  |  | | | |  | | | |  | | | | |  | | | | | |
 | 5:16 | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 |
 | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | 7:07 |
2 | 1 | 1 | — | — | — | — | — | — | — | 6 | 7 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 25 | 26 | 26 | 25 | 23 | 23 | 22 | 23 | 24 | 22 | 22 | 23 | 22 | 21 | 19 | 19 | 22 | 25 | 25 | 23 | 21 | 21 | 20 |
26 | 27 | 28 | 27 | 27 | 26 | 26 | 24 | 24 | 24 | 21 | 23 | 25 | 23 | 21 | 18 | 19 | 21 | 25 | 26 | 24 | 20 | 21 | 20 | |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SSW 7 | S 7 | S 6 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 |
 kJ | 183 | 143 | 289 | 200 | 392 | 258 | 218 | 214 | 210 | 163 | 132 | 132 | 175 | 104 | 65 | 103 | 103 | 103 | 103 | 105 | 105 | 103 | 100 | 113 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | S 7 | ESE 10 | S 7 | S 7 | S 7 | S 7 | S 7 | — | — | — | ESE 10 | ESE 10 | ESE 10 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | WSW 7 | S 6 | NE 6 |
| kJ | 166 | 169 | 23 | 169 | 34 | 66 | 60 | 74 | 97 | — | — | — | 132 | 132 | 105 | 37 | 26 | 18 | 18 | 16 | 10 | 18 | 5 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SSE 8 | SE 7 | SE 6 | — | — | — | — | — | — | — | — | — | SW 7 | — | — | — | — | S 6 | WSW 7 | WSW 7 |
| kJ | — | — | — | — | 6 | 37 | 32 | — | — | — | — | — | — | — | — | — | 22 | — | — | — | — | 11 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | S 7 | S 7 | — | S 7 | — | — | S 7 | S 6 | SSW 6 | SSW 7 | WSW 7 | WSW 7 | WSW 7 | W 3 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | W 7 | — | — |
| kJ | — | — | — | 47 | 82 | — | 92 | — | — | 131 | 156 | 212 | 273 | 19 | 49 | 47 | 3 | 35 | 18 | 18 | 31 | 100 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 33 | 33 | 330 | 342 | 14 | 14 | 14 | 33 | 330 | 375 | 582 | 14 | 33 | 14 | 14 | 12 | 27 | 14 | 330 | 0 | 87 | 0 | 0 |
Best forecast wave conditions in Kyu Shu | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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