Surf Forecasts:
Nagata surf forecast from 20 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 12AM (local time) - 25ft (7.5m), 14s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 12AM (local time) - 25ft (7.5m), 14s period, E swell with 21,110 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 6PM (local time) - 3.5ft (1.1m), 9s period with SSE 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 Thursday (Aug 20) at 6PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.6m and 8s. 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 7.5m 14s and forecast to arrive on Wednesday (Aug 26) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Wednesday (Aug 26) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 20th Aug) | 3.5ft (1.1m) 9s |
| Best Surf | 12AM (Wed 26th Aug) | 25ft (7.5m) 14s |
| Most Powerful | 12AM (Wed 26th Aug) | 25ft (7.5m) 14s |
Table - best surf conditions forecast for Nagata over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 30°C on Thu morning, min 25°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Tue night. Warm (max 29°C on Sun morning, min 25°C on Sun night). Winds increasing (light winds from the ENE on Sun night, near gales from the N by Tue night). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
AM | PM | 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) | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 8 | SSE 8 | S 9 | S 9 | E 13 | ESE 15 | ESE 17 | ESE 17 | ESE 16 | ESE 16 | ESE 16 | E 14 | E 13 | E 13 | ESE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 106 | 169 | 190 | 194 | 157 | 126 | 88 | 94 | 76 | 59 | 161 | 414 | 1775 | 2815 | 4636 | 11309 | 11929 | 21110 | 7665 | 507 | 355 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off | off | cross-off | cross | cross | cross-on |
High Tide | 11:04AM1.62m | 10:27PM1.86m | 12:37PM1.50m | 11:15PM1.76m | 3:12PM1.52m | 00:44AM1.67m | 4:37PM1.66m | 2:40AM1.68m | 5:17PM1.79m | 4:00AM1.79m | 5:47PM1.90m | 4:55AM1.92m | 6:14PM2.00m | ||||||||
Low Tide | 4:19PM1.11m | 5:41AM0.70m | 5:07PM1.30m | 7:12AM0.73m | 7:08PM1.43m | 8:52AM0.67m | 9:37PM1.38m | 10:04AM0.56m | 10:42PM1.25m | 10:55AM0.44m | 11:23PM1.09m | 11:36AM0.35m | 11:57PM0.93m | ||||||||
 | |  | |  |  | |  | | | | | | | | | |  |  |  | | |
 | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — |
 | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 39 | 55 | 5 | — |
Temp °C | 30 | 30 | 27 | 30 | 30 | 26 | 29 | 30 | 26 | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 28 | 26 | 26 | 28 | 27 |
Feels °C | 33 | 33 | 32 | 34 | 34 | 30 | 31 | 33 | 30 | 31 | 31 | 30 | 30 | 30 | 27 | 28 | 27 | 22 | 22 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 8 | SSE 8 | S 9 | S 9 | E 13 | ESE 15 | ESE 17 | ESE 17 | ESE 16 | ESE 16 | ESE 16 | E 14 | E 13 | ENE 11 | ENE 10 |
| kJ | 106 | 169 | 190 | 194 | 157 | 126 | 88 | 94 | 76 | 59 | 161 | 414 | 1775 | 2815 | 4636 | 11309 | 11929 | 15918 | 7665 | 1848 | 264 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 7 | E 8 | SE 11 | E 9 | E 9 | E 9 | SE 5 | E 10 | S 9 | E 11 | S 10 | S 10 | E 12 | SSW 9 | SSW 9 | — | SSW 10 | E 13 | ESE 12 |
| kJ | 58 | 58 | 16 | 34 | 30 | 13 | 25 | 40 | 11 | 49 | 61 | 114 | 50 | 53 | 73 | 17 | 16 | — | 19 | 507 | 355 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 11 | E 7 | SE 11 | SE 11 | ESE 11 | E 9 | ESE 14 | SE 13 | S 9 | SSW 10 | E 12 | SSW 10 | — | — | — | — | SSW 11 | SSW 10 |
| kJ | 25 | 26 | 28 | 29 | 8 | 30 | 31 | 22 | 23 | 40 | 46 | 56 | 77 | 26 | 33 | — | — | — | — | 38 | 34 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | E 7 | E 6 | — | E 4 | E 4 | E 4 | ESE 5 | E 10 | E 6 | E 7 | — | — | E 14 | WNW 4 | WNW 4 | W 8 |
| kJ | — | — | — | — | — | 14 | 7 | — | 6 | 14 | 9 | 30 | 284 | 112 | 179 | — | — | 21110 | 35 | 34 | 84 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 97 | 0 | 0 | 109 | 356 | 0 | 124 | 404 | 0 | 100 | 404 | 492 | 492 | 492 | 33 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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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