Surf Forecasts:
Oku surf forecast from 20 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 3AM (local time) - 16ft (5.0m), 12s period, NNE swell with glassy winds.
- Most powerful swell: Tuesday 25 Aug, 9AM (local time) - 16ft (5.0m), 17s period, E swell with 13,107 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 3AM (local time) - 16ft (5.0m), 12s period with NNE swell.
Best Forecast Surf Conditions for Oku this week:
The surf forecast for Oku over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 26) at 3AM. The primary swell is predicted to be 5.0m and 12s period with a secondary swell of 3.5m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Oku in the next 16 days are 5.0m 17s and forecast to arrive on Tuesday (Aug 25) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 9s period and expected on Wednesday (Aug 26) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 26th Aug) | 16ft (5.0m) 12s |
| Best Surf | 3AM (Wed 26th Aug) | 16ft (5.0m) 12s |
| Most Powerful | 9AM (Tue 25th Aug) | 16ft (5.0m) 17s |
Table - best surf conditions forecast for Oku over the next 16 days.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu night. Warm (max 28°C on Thu night, min 27°C on Fri morning). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 29°C on Wed afternoon, min 28°C on Sun night). Winds decreasing (fresh winds from the E on Mon morning, calm by Wed afternoon). | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | ESE 7 | ESE 6 | SSE 7 | ENE 8 | ENE 9 | E 9 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 7 | ENE 7 | E 17 | E 16 | N 11 | NW 11 | WNW 10 | W 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 0 | 0 | 7 | 8 | 7 | 101 | 115 | 119 | 151 | 204 | 202 | 171 | 13107 | 9864 | 4939 | 1762 | 2199 | 1079 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-on | cross-on |
High Tide | 11:25PM1.53m | 2:38PM1.22m | 00:28AM1.45m | 4:48PM1.30m | 2:15AM1.42m | 5:30PM1.40m | 3:45AM1.48m | 5:57PM1.50m | 4:43AM1.59m | 6:22PM1.59m | 5:28AM1.70m | 6:46PM1.67m | |||||||
Low Tide | 7:05AM0.68m | 5:55PM1.17m | 8:47AM0.67m | 8:47PM1.22m | 10:07AM0.59m | 10:29PM1.15m | 11:00AM0.48m | 11:16PM1.04m | 11:39AM0.37m | 11:50PM0.93m | 12:12PM0.28m | 00:21AM0.81m | |||||||
 |  |  | |  | | | | | | | |  | | |  | | |  | |
 | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — |
 | 7:00 | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — |
mm | 2 | 2 | — | 1 | — | 1 | 3 | — | — | 2 | 2 | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 |
Feels °C | 28 | 24 | 24 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 29 | 30 | 31 | 32 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 9 | S 9 | SW 10 | SW 9 | SW 10 | E 9 | S 9 | S 10 | SSW 9 | SSW 9 | ESE 17 | ESE 17 | ESE 18 | E 17 | E 16 | ENE 14 | NW 11 | WNW 10 | W 10 |
| kJ | 3 | 23 | 15 | 13 | 14 | 7 | 73 | 65 | 47 | 46 | 1152 | 2406 | 6226 | 13107 | 9864 | 2019 | 1762 | 2199 | 1079 |
Swell 2 Height (m) Direction Period (s) | — | SW 8 | — | ENE 8 | ENE 9 | SW 10 | SW 10 | SW 10 | E 10 | ESE 12 | SSW 9 | SSW 9 | NE 10 | SSW 9 | SSW 9 | SSW 9 | N 11 | E 11 | ENE 11 |
| kJ | — | 11 | — | 7 | 8 | 4 | 15 | 15 | 16 | 59 | 30 | 47 | 45 | 46 | 43 | 8 | 1056 | 292 | 40 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 14 | E 14 | — | ENE 9 | ESE 14 | ESE 13 | ESE 16 | ESE 13 | ENE 11 | — | — | — | SE 11 | E 13 | SE 10 | E 13 |
| kJ | — | — | — | 4 | 4 | — | 16 | 20 | 35 | 48 | 67 | 37 | — | — | — | 4 | 284 | 15 | 32 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 6 | SSE 7 | SSE 9 | SE 9 | SE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 | E 6 | E 7 | ENE 7 | — | N 7 | N 11 | W 9 | SW 8 | S 8 |
| kJ | 304 | 249 | 611 | 856 | 598 | 297 | 101 | 115 | 119 | 151 | 204 | 202 | 171 | — | 723 | 4939 | 3567 | 1473 | 814 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 94 | 582 | 582 | 582 | 582 | 667 | 582 | 582 | 582 | 582 | 679 | 582 | 73 | 46 | 46 | 46 | 14 | 46 | 14 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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 Oku 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 Oku Surf forecast
The above surf forecast table for Oku provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Oku can be found by selecting the local surf guide option on the grey menu. Our Oku 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 (Oku) 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 Oku 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.
Oku is 38 km (24 miles) from the city of Okinawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Okinawa. Okinawa has rooms for a wide range of budgets as well as car hire and transport links.
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