Surf Forecasts:
Oku surf forecast from 4 Aug 2026:
- Best quality surf: Thursday 6 Aug, 3AM (local time) - 16ft (5.0m), 18s period, E swell with cross-onshore winds.
- Most powerful swell: Friday 7 Aug, 12PM (local time) - 49ft (15.0m), 16s period, NE swell with 106,171 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 3AM (local time) - 16ft (5.0m), 18s period with E 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 Thursday (Aug 06) at 3AM. The primary swell is predicted to be 5.0m and 18s period with a secondary swell of 2.5m and 8s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Oku in the next 16 days are 15.0m 16s and forecast to arrive on Friday (Aug 07) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 12.5m 13s period and expected on Sunday (Aug 09) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 6th Aug) | 16ft (5.0m) 18s |
| Best Surf | 3AM (Thu 6th Aug) | 16ft (5.0m) 18s |
| Most Powerful | 12PM (Fri 7th Aug) | 49ft (15.0m) 16s |
Table - best surf conditions forecast for Oku over the next 16 days.
Short Range ForecastHeavy rain (total 27mm), heaviest during Thu night. Warm (max 30°C on Tue morning, min 28°C on Thu night). Winds increasing (light winds from the ENE on Tue morning, extremely windy from the NNW by Thu night). | Days 4-6 Weather SummaryHeavy rain (total 472mm), heaviest during Sun morning. Warm (max 30°C on Fri night, min 28°C on Fri morning). Winds decreasing (extremely windy from the N on Fri afternoon, moderate winds from the ESE by Sat afternoon). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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) | E 17 | E 17 | E 17 | E 17 | E 17 | E 18 | E 18 | E 18 | E 18 | NE 16 | NE 15 | ENE 13 | E 12 | NNW 10 | N 10 | NNE 14 | SW 13 | E 14 | E 16 | W 14 | W 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1907 | 2347 | 3674 | 5305 | 7752 | 14018 | 22464 | 26373 | 48072 | 97991 | 70154 | 34552 | 12195 | 706 | 345 | 41 | 0 | 200 | 186 | 13429 | 5774 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 10:14AM1.62m | 10:32PM1.73m | 11:10AM1.50m | 11:10PM1.69m | 12:28PM1.39m | 11:59PM1.64m | 2:18PM1.35m | 1:08AM1.60m | 4:10PM1.42m | 2:35AM1.62m | 5:21PM1.54m | 3:57AM1.70m | 6:10PM1.66m | ||||||||
Low Tide | 4:14PM0.59m | 4:58AM0.55m | 4:53PM0.76m | 5:58AM0.54m | 5:43PM0.94m | 7:16AM0.51m | 6:59PM1.09m | 8:47AM0.44m | 8:52PM1.16m | 10:08AM0.31m | 10:25PM1.11m | 11:11AM0.17m | 11:27PM1.00m | ||||||||
 | |  | |  |  | | | | | | | | | | | | | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:13 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — |
mm | 2 | 2 | 3 | 2 | — | — | 1 | 4 | 13 | 58 | 126 | 19 | 6 | 6 | 21 | 127 | 87 | 22 | 3 | 2 | 2 |
Temp °C | 30 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 30 | 30 | 30 | 30 | 28 | 28 | 29 | 30 | 30 | 30 |
Feels °C | 33 | 31 | 31 | 30 | 31 | 29 | 25 | 23 | 21 | 12 | 8 | 28 | 33 | 34 | 29 | 10 | 13 | 19 | 24 | 26 | 28 |
Swell 1 Height (m) Direction Period (s) | E 17 | E 17 | E 17 | E 17 | E 17 | E 18 | E 18 | E 18 | E 18 | — | — | SSE 14 | NNE 15 | E 12 | N 10 | NNE 14 | — | E 14 | E 13 | E 14 | W 13 |
| kJ | 1907 | 2347 | 3674 | 5305 | 7752 | 14018 | 22464 | 26373 | 48072 | — | — | 330 | 773 | 10001 | 345 | 41 | — | 200 | 168 | 429 | 5774 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SE 8 | — | — | — | — | — | — | — | — | — | — | SSE 12 | NNE 15 | W 10 | — | — | — | E 16 | E 14 | E 13 |
| kJ | 12 | 23 | — | — | — | — | — | — | — | — | — | — | 3174 | 610 | 288 | — | — | — | 129 | 610 | 440 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | N 10 | NNW 10 | NNE 14 | — | — | — | E 16 | E 14 | ENE 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 968 | 706 | 239 | — | — | — | 186 | 610 | 45 |
Wind waves Height (m) Direction Period (s) | NE 4 | — | — | ENE 6 | — | NNE 7 | NNE 8 | NNE 10 | NNE 11 | NE 16 | NE 15 | ENE 13 | E 12 | SE 13 | SE 12 | SSW 13 | SW 13 | SW 14 | WSW 14 | W 14 | S 11 |
| kJ | 21 | — | — | 61 | — | 385 | 1520 | 3959 | 12357 | 97991 | 70154 | 34552 | 12195 | 21308 | 9795 | 23245 | 52123 | 34745 | 20219 | 13429 | 1456 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 46 | 46 | 46 | 676 | 676 | 938 | 807 | 676 | 1371 | 813 | 807 | 41 | 41 | 807 | 813 | 691 | 691 | 691 | 686 | 686 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
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 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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