Surf Forecasts:
Nagata surf forecast from 17 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 3AM (local time) - 3.5ft (1.1m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 6PM (local time) - 4.5ft (1.3m), 9s period, SSE swell with 308 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 3AM (local time) - 3ft (0.9m), 9s period with E swell.
Best Forecast Surf Conditions for Nagata this week:
The surf forecast for Nagata over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 3AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.4m and 11s. Another secondary swell of 0.5m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Nagata in the next 16 days are 1.3m 9s and forecast to arrive on Thursday (Aug 20) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Tuesday (Aug 18) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 18th Aug) | 3ft (0.9m) 9s |
| Best Surf | 3AM (Wed 19th Aug) | 3.5ft (1.1m) 8s |
| Most Powerful | 6PM (Thu 20th Aug) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Nagata over the next 16 days.
Short Range ForecastModerate rain (total 15mm), heaviest on Wed morning. Warm (max 30°C on Thu morning, min 26°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Thu night. Warm (max 30°C on Fri morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | ESE 8 | SSE 9 | SSE 9 | S 9 | S 9 | S 10 | S 9 | S 9 | S 8 | S 9 | S 9 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 133 | 103 | 101 | 145 | 167 | 173 | 167 | 271 | 277 | 293 | 293 | 307 | 196 | 157 | 115 | 196 | 119 | 108 | 108 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:19AM1.93m | 9:22PM2.02m | 10:05AM1.78m | 9:52PM1.95m | 11:04AM1.62m | 10:27PM1.86m | 12:37PM1.50m | 11:15PM1.76m | 3:12PM1.52m | 00:44AM1.67m | 4:37PM1.66m | 2:40AM1.68m | |||||||
Low Tide | 3:10AM0.56m | 3:15PM0.74m | 3:50AM0.58m | 3:45PM0.93m | 4:38AM0.64m | 4:19PM1.11m | 5:41AM0.70m | 5:07PM1.30m | 7:12AM0.73m | 7:08PM1.43m | 8:52AM0.67m | 9:37PM1.38m | |||||||
 |  |  | |  | |  | | | | | | | | |  | | | | |
 | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — |
 | 6:57 | — | 6:55 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — |
mm | 1 | — | — | 1 | 3 | 3 | 6 | — | 1 | 4 | — | 2 | 3 | 1 | — | — | — | — | 2 |
Temp °C | 26 | 29 | 29 | 26 | 29 | 29 | 27 | 30 | 30 | 27 | 30 | 29 | 27 | 29 | 29 | 26 | 29 | 29 | 26 |
Feels °C | 29 | 31 | 31 | 30 | 32 | 32 | 32 | 33 | 33 | 32 | 33 | 32 | 32 | 30 | 31 | 29 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | SSE 6 | SSE 5 | SE 10 | E 8 | SSE 9 | SSE 9 | S 9 | S 9 | S 10 | S 9 | S 9 | S 8 | S 9 | S 9 | S 8 | S 8 |
| kJ | 133 | 103 | 101 | 11 | 9 | 26 | 107 | 271 | 277 | 293 | 293 | 307 | 196 | 157 | 115 | 196 | 119 | 108 | 108 |
Swell 2 Height (m) Direction Period (s) | S 5 | S 5 | S 6 | SE 10 | SE 10 | S 7 | SSE 5 | E 8 | SE 10 | E 8 | E 8 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 |
| kJ | 11 | 12 | 17 | 16 | 27 | 4 | 16 | 60 | 25 | 32 | 35 | 39 | 26 | 41 | 25 | 38 | 30 | 68 | 70 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 10 | SW 9 | S 7 | SW 8 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 11 | ESE 11 | SE 11 | ESE 11 | ESE 11 | E 14 | E 13 | E 13 | E 13 |
| kJ | 30 | 18 | 17 | 3 | 4 | 3 | 25 | 26 | 26 | 26 | 22 | 23 | 30 | 24 | 22 | 34 | 31 | 31 | 31 |
Wind waves Height (m) Direction Period (s) | — | — | — | E 9 | E 8 | E 8 | ESE 8 | — | E 8 | — | — | — | — | — | ESE 4 | — | — | — | — |
| kJ | — | — | — | 145 | 167 | 173 | 167 | — | 58 | — | — | — | — | — | 8 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 375 | 0 | 330 | 375 | 0 | 0 | 375 | 0 | 0 | 0 | 0 | 113 | 404 | 0 | 97 | 404 | 0 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.
Information about the Nagata Surf forecast
The above surf forecast table for Nagata provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nagata can be found by selecting the local surf guide option on the grey menu. Our Nagata surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Nagata) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Nagata may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Nagata is 6 km (4 miles) from Kushima. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Kushima. Kushima has rooms for a wide range of budgets as well as car hire and transport links.
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