Surf Forecasts:
Yonabaru surf forecast from 31 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 6PM (local time) - 11ft (3.5m), 19s period, E swell with cross-shore winds.
- Most powerful swell: Thursday 6 Aug, 12PM (local time) - 20ft (6.0m), 19s period, E swell with 24,635 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3AM (local time) - 1ft (0.3m), 18s period with ESE swell.
Best Forecast Surf Conditions for Yonabaru this week:
The surf forecast for Yonabaru over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 02) at 3AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Yonabaru in the next 16 days are 6.0m 19s and forecast to arrive on Thursday (Aug 06) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 9.5m 13s period and expected on Friday (Aug 07) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 2nd Aug) | 1ft (0.3m) 18s |
| Best Surf | 6PM (Wed 5th Aug) | 11ft (3.5m) 19s |
| Most Powerful | 12PM (Thu 6th Aug) | 20ft (6.0m) 19s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
Alright, let's get into it. This is Rusty, and I'm looking at the surf outlook for our local region.
Right off the bat, we’ve got a flat spell to start. The first few days are a write-off, with tiny, weak waves and poor conditions. Nothing to get excited about until we hit Sunday, August 2nd. That morning, we see a little pulse of 1ft swell from the ESE, with a very long period of 16 seconds. The wind is light and cross-offshore, so it’ll be clean, but the energy is still weak. It's barely surfable, but it's a start. The afternoon picks up a touch to 2ft with a 17-second period, and the energy bumps up to moderate. Still, it’s pretty ordinary.
Monday, August 3rd, the swell builds to 3ft from the ESE, with a 15-second period. The energy is now moderate, but the wind turns cross-shore and gets a bit stronger, making for a bumpy surface. Not great. The real standouts are a long way off, and they come with a big caveat.
The best-looking surf on offer is on Thursday, August 6th. We’ve got a solid 18ft swell from the east, with a 19-second period. That's a massive groundswell, and the combined energy is through the roof. The wind is cross-offshore and strong. But here’s the thing: at Yonabaru, a beginner spot, 18ft is way too big. It’s for experts only, and even then, it’s going to be a heavy, dangerous situation. The report says the swell is predicted to be too big for this break. So, while it’s the biggest and most powerful swell of the period, it’s not a recommendation for a fun session. The water temp is sitting at 86°, which is a touch warmer than normal for this time of year.
It’s a pretty bleak 16 days overall. After that big pulse on the 6th, the wind goes absolutely nuts on Friday, August 7th, with storm-force gusts, and the surf quality plummets to zero. The rest of the second week is a mess of onshore and cross-shore winds with small, weak, and choppy surf. There’s a slight uptick on Saturday, August 15th, with a 6ft swell from the east, but the wind is cross-onshore, making it marginal at best. Honestly, for the next two weeks, you’re better off finding something else to do.
-Rusty
Short Range ForecastMostly dry. Warm (max 30°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Mon night. Warm (max 31°C on Mon afternoon, min 28°C on Mon night). Winds increasing (light winds from the NE on Tue afternoon, strong winds from the NNW by Thu morning). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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) | SE 9 | E 9 | SE 10 | SE 10 | SE 9 | ESE 16 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 18 | ESE 18 | ESE 18 | E 18 | E 19 | E 19 | E 19 | E 19 | NNW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 13 | 8 | 16 | 17 | 13 | 48 | 168 | 357 | 474 | 679 | 803 | 1690 | 2342 | 3162 | 5026 | 8011 | 13528 | 23408 | 22998 | 15105 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off |
High Tide | 8:37PM2.08m | 8:13AM2.18m | 9:06PM2.08m | 8:54AM2.11m | 9:36PM2.06m | 9:37AM2.00m | 10:07PM2.03m | 10:25AM1.86m | 10:40PM1.99m | 11:23AM1.70m | 11:19PM1.94m | 12:42PM1.57m | 00:09AM1.88m | |||||||
Low Tide | 2:20AM0.84m | 2:43PM0.35m | 2:57AM0.78m | 3:16PM0.48m | 3:37AM0.75m | 3:49PM0.64m | 4:21AM0.74m | 4:23PM0.82m | 5:12AM0.75m | 5:01PM1.01m | 6:16AM0.76m | 5:49PM1.19m | ||||||||
 |  |  | | | | | | | |  | |  |  | | | | |  | | |
 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — |
mm | — | — | — | — | — | — | — | — | — | — | 3 | — | 1 | 1 | 2 | — | — | 3 | 10 | 52 |
Temp °C | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 28 | 30 | 31 | 29 | 31 | 30 | 29 | 31 | 31 | 29 | 29 | 28 | 29 |
Feels °C | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 31 | 32 | 33 | 32 | 34 | 34 | 32 | 32 | 32 | 30 | 27 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SE 10 | SE 10 | SE 9 | SE 9 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 18 | ESE 18 | ESE 18 | E 18 | E 19 | E 19 | E 19 | E 19 | ENE 17 |
| kJ | 10 | 10 | 16 | 17 | 13 | 13 | 168 | 357 | 474 | 679 | 803 | 1690 | 2342 | 3162 | 5026 | 8011 | 13528 | 23408 | 22998 | 9414 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 9 | SW 8 | SSW 8 | S 7 | ESE 16 | SE 9 | ESE 8 | E 8 | S 7 | SSE 9 | S 9 | SSW 9 | SSE 8 | — | — | — | — | — | — |
| kJ | 13 | 6 | 10 | 6 | 4 | 48 | 20 | 14 | 11 | 4 | 8 | 14 | 26 | 21 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 9 | ESE 9 | E 9 | E 9 | SSW 8 | ESE 19 | S 7 | SE 9 | SSE 9 | SW 7 | S 7 | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 8 | 6 | 6 | 6 | 37 | 4 | 13 | 8 | 2 | 4 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 7 | N 3 | N 4 | N 4 | — | — | E 8 | — | — | N 8 | NNW 9 | NNW 12 |
| kJ | — | — | — | — | — | — | — | — | 4 | 2 | 8 | 13 | — | — | 29 | — | — | 1103 | 2737 | 15105 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 855 | 1003 | 1422 | 1372 | 672 | 0 | 0 | 14 | 34 | 14 | 14 | 47 | 17 | 17 | 47 | 727 | 607 | 760 | 785 | 607 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
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 Yonabaru 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 Yonabaru Surf forecast
The above surf forecast table for Yonabaru provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Yonabaru can be found by selecting the local surf guide option on the grey menu. Our Yonabaru 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 (Yonabaru) 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 Yonabaru 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.
Yonabaru is 5 km (3 miles) from the city of Ginowan. If you plan a holiday in Okinawa, look for hotels and other accommodation in Ginowan. Ginowan has rooms for a wide range of budgets as well as car hire and transport links.
Nearest