
Surf Forecasts:
Yonabaru surf forecast from 28 Jul 2026:
- Best quality surf: Monday 3 Aug, 9AM (local time) - 3ft (0.9m), 15s period, ESE swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 3PM (local time) - 6ft (1.8m), 18s period, ESE swell with 2,042 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 9AM (local time) - 3ft (0.9m), 15s 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 Monday (Aug 03) at 9AM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 0.6m and 4s. 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 1.8m 18s and forecast to arrive on Tuesday (Aug 04) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Tuesday (Aug 04) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 3rd Aug) | 3ft (0.9m) 15s |
| Best Surf | 9AM (Mon 3rd Aug) | 3ft (0.9m) 15s |
| Most Powerful | 3PM (Tue 4th Aug) | 6ft (1.8m) 18s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gonna give you the straight-up story on what’s cooking for the next couple of weeks.
Right off the bat, we’ve got a long stretch of nothing to write home about. For the first several days, the surf is flat and the conditions are just plain poor. We’re looking at weak, tiny swell with the combined energy barely hitting 40 (25) at its best. The wind is all over the place, sometimes glassy, but there’s just no wave to surf. It’s a real bummer of a start. Expect a solid gap of nothing until the beginning of August.
The first real sign of life comes around Monday the 3rd of August. The swell finally starts to show its face, with energy jumping to 417 (moderate). The swell is coming from the ESE with a period of 15 seconds, which is proper long-period groundswell. That’s going to mean better shaped waves and more push, but at a beach break like Yonabaru, that long period can make things a bit tricky, with waves breaking too straight. The wind is clean cross-off from the NNW, so the surface will be clean. The size is around 3ft, a nice small wave for the beginners.
The real standout, though, is Tuesday the 4th and Wednesday the 5th of August. This is the best we’ve got. We’re looking at a solid pulse of ESE swell hitting 5ft to 6ft, and then peaking at 8ft from the E on Wednesday morning. The combined energy is huge, jumping from 1671 to 3625, which is strong to very strong energy. The period is a very long 18 seconds, which is pure groundswell. This is a serious swell. The winds are cross-shore from the north, so it won’t be glassy, but it’ll be surfable. You’ll want to be an experienced surfer for the bigger days, as 8ft is getting into expert territory. The water temperature is sitting at 85°F, which is about average for the time of year, so you’ll be in boardies.
After that pulse, the swell drops off quickly through the end of the week. The wind shifts and gets strong, with a near gale of 34 mph from the west on Saturday the 8th, making it more of a kite session than a paddle one. The surf will be messy and blown out. There is a small window around Monday the 10th of August with some 3ft to 3ft E swell, but the wind is onshore, so the quality will be marginal.
The final week looks unstable. Another decent-sized swell pops up around Tuesday the 11th of August, with 10ft from the east, but the wind is cross-on and the period is a shorter 10-11 seconds, so it’ll be bumpy and not the cleanest. The rest of the days are looking like poor surf with strong winds again.
So, to sum it up: the first few days are a write-off. Your best bet is Monday the 3rd of August for a clean, small beginner wave, or the standout window of Tuesday the 4th and Wednesday the 5th of August for the biggest, most powerful groundswell of the run. Get out there when it’s clean.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 30°C on Tue morning, min 27°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Fri morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | |||||||||||||||
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) | SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 10 | ESE 9 | SE 9 | E 9 | SE 10 | SE 11 | SE 9 | ESE 7 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 17 |
Wave Graph | |||||||||||||||||||||
25 | 38 | 35 | 24 | 15 | 22 | 22 | 22 | 14 | 16 | 13 | 6 | 16 | 18 | 12 | 5 | 58 | 196 | 408 | 513 | 928 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | glassy | glassy | glassy | cross-off | glassy | cross | cross-off | cross | glassy | cross-off | cross-off | glassy | cross | cross | cross | cross-off | cross-off | cross |
High Tide | 7:07PM1.97m | 6:08AM2.14m | 7:39PM2.03m | 6:51AM2.19m | 8:08PM2.06m | 7:32AM2.20m | 8:37PM2.08m | 8:13AM2.18m | 9:06PM2.08m | 8:54AM2.11m | 9:36PM2.06m | 9:37AM2.00m | 10:07PM2.03m | ||||||||
Low Tide | 12:21PM0.24m | 00:28AM1.11m | 12:59PM0.20m | 1:07AM1.01m | 1:35PM0.20m | 1:44AM0.92m | 2:10PM0.25m | 2:20AM0.84m | 2:43PM0.35m | 2:57AM0.78m | 3:16PM0.48m | 3:37AM0.75m | 3:49PM0.64m | ||||||||
5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | |
— | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | 4 | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 29 |
Feels °C | 32 | 33 | 33 | 34 | 35 | 34 | 33 | 35 | 33 | 34 | 34 | 33 | 34 | 34 | 32 | 34 | 33 | 31 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | S 8 | ESE 10 | ESE 4 | SE 5 | SE 10 | SE 9 | SE 9 | SE 9 | SE 10 | ESE 9 | SW 8 | SW 8 | SW 8 | SE 11 | SE 9 | S 7 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 17 |
29 | 38 | 7 | 6 | 15 | 22 | 22 | 22 | 14 | 16 | 10 | 11 | 11 | 18 | 12 | 4 | 58 | 196 | 408 | 513 | 928 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 8 | SE 10 | SE 10 | SE 5 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SE 9 | E 9 | SE 10 | SW 8 | S 7 | SSE 9 | ESE 14 | ESE 8 | S 7 | S 7 | S 7 |
25 | 18 | 35 | 24 | 6 | 9 | 9 | 10 | 10 | 10 | 13 | 6 | 16 | 10 | 4 | 8 | 37 | 13 | 4 | 4 | 4 | |
Swell 3 Height (m) Direction Period (s) | SW 8 | SW 8 | S 7 | S 7 | SW 8 | ESE 5 | S 7 | S 7 | E 8 | SSE 6 | SSE 6 | SSE 6 | E 9 | S 8 | SSW 8 | ESE 7 | SSE 9 | S 7 | SSE 9 | SW 7 | SW 7 |
2 | 10 | 10 | 9 | 10 | 2 | 4 | 3 | 5 | 4 | 4 | 3 | 6 | 5 | 6 | 5 | 8 | 4 | 8 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | SE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 2 | NNE 3 | N 4 | N 4 | N 5 |
— | 2 | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 9 | 31 | 40 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 672 | 1013 | 672 | 14 | 14 | 680 | 720 | 1192 | 89 | 1003 | 1562 | 855 | 2276 | 785 | 672 | 14 | 14 | 14 | 0 | 14 | 47 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.










