Surf Forecasts:
Yonabaru surf forecast from 23 Jul 2026:
- Most powerful swell: Friday 31 Jul, 9AM (local time) - 2ft (0.6m), 9s period, SE swell with 51 kJ wave energy.
Best Forecast Surf Conditions for Yonabaru this week:
The most powerful waves expected at Yonabaru in the next 16 days are 0.6m 9s and forecast to arrive on Friday (Jul 31) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 9s period and expected on Saturday (Jul 25) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Fri 31st Jul) | 2ft (0.6m) 9s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's get into it.
Honestly, for the first week and a half, it's a bit of a flat spell here at Yonabaru. We're looking at small, weak, and messy conditions. The water temp is sitting right where it should be for this time of year at 84°, so no surprises there. From the 24th right through to the 3rd of August, we're seeing tiny swells, mostly around 1ft to 2ft, with poor surf quality. The wind is often cross-onshore, making things choppy. There are a few glassy moments on the 26th, 29th, and 30th of July, but even then, the swell is just too small and weak to get excited about. The combined energy is a measly 30 to 75 (weak). It's a tough stretch.
Then, things start to look a bit more promising. On the 4th of August, we see a bump in the swell. The combined energy jumps to 311 (moderate) with a 4ft swell from the ESE, but it's still a cross-onshore breeze and the forecast is marginal. It's a sign of life, but not quite there yet.
The 5th and 6th of August are bigger, with 5ft to 6ft swells from the east, but the cross-onshore wind keeps it from being clean. The energy is building, hitting 1,189 (strong) on the 5th. It's still only for the more experienced crew, as it's getting a bit too much for beginners.
The standout action is definitely on the 7th and 8th of August. On the 7th, we get a 6ft east swell with a very long period of 17 seconds. The wind swings cross-off from the NW, cleaning things up. The combined energy is a solid 2,054 (strong). This is the kind of groundswell that will really push through, and the longer period means better-shaped waves. It's a good day for those who can handle it.
But the real call to action is Saturday, the 8th of August. The forecast is for a 10ft to 12ft east swell, with a very long 19-second period. This is a proper, powerful groundswell. The wind is forecast to be offshore, light, and clean from the WNW. The combined energy is off the charts at 6,311 (very strong) for the morning and 8,104 (very strong) for the afternoon. This is only for experienced surfers – 10ft+ is a big wave. The long period at a beach break can make it close out, so look for the peaks. For a surfer who knows what they're doing, this is the best session on offer, but the crowds are likely, so get out there early.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 31°C on Sat afternoon, min 27°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon night. Warm (max 30°C on Mon morning, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
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) | ENE 10 | ENE 10 | E 10 | E 10 | E 9 | SE 10 | SE 10 | S 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 10 | SE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 33 | 32 | 30 | 16 | 16 | 16 | 16 | 0 | 17 | 39 | 37 | 36 | 35 | 38 | 35 | 24 | 24 | 22 | 22 | 23 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | on | cross-on | cross-on | glassy | on | on | cross-on | on | on | on | on | cross-on | glassy | glassy | glassy | glassy | cross-off | glassy |
High Tide | 3:40PM1.57m | 2:20AM1.87m | 5:00PM1.68m | 3:28AM1.92m | 5:53PM1.79m | 4:29AM1.99m | 6:33PM1.89m | 5:21AM2.07m | 7:07PM1.97m | 6:08AM2.14m | 7:39PM2.03m | 6:51AM2.19m | 8:08PM2.06m | ||||||||
Low Tide | 8:19PM1.31m | 9:52AM0.58m | 9:47PM1.33m | 10:50AM0.45m | 10:54PM1.29m | 11:38AM0.33m | 11:46PM1.21m | 12:21PM0.24m | 00:28AM1.11m | 12:59PM0.20m | 1:07AM1.01m | 1:35PM0.20m | 1:44AM0.92m | ||||||||
 | |  | |  |  |  | |  | | | | | | | | |  | | | | |
 | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — |
 | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — |
mm | — | — | — | — | — | 1 | 1 | — | 1 | — | — | 1 | — | 1 | 2 | — | — | — | — | — | — |
Temp °C | 30 | 30 | 29 | 30 | 31 | 29 | 30 | 31 | 28 | 30 | 30 | 28 | 30 | 29 | 28 | 30 | 30 | 28 | 29 | 29 | 27 |
Feels °C | 33 | 33 | 34 | 35 | 35 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 34 | 35 | 33 | 33 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | SSE 8 | SSE 9 | SSE 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | ESE 5 | ESE 5 | SE 10 | SE 9 | SE 9 | SW 9 | SSW 9 |
| kJ | 33 | 32 | 88 | 177 | 169 | 137 | 140 | 115 | 115 | 65 | 46 | 31 | 27 | 17 | 15 | 10 | 24 | 22 | 22 | 20 | 33 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 9 | E 10 | E 10 | E 9 | E 9 | SE 10 | SE 10 | SW 10 | SW 10 | SE 10 | SE 10 | SE 10 | ESE 10 | S 7 | SE 10 | ESE 5 | SW 8 | SW 9 | SE 10 | SE 10 |
| kJ | 8 | 8 | 30 | 16 | 16 | 15 | 16 | 23 | 48 | 33 | 37 | 36 | 35 | 38 | 17 | 24 | 5 | 18 | 20 | 23 | 15 |
Swell 3 Height (m) Direction Period (s) | SW 7 | S 7 | SE 16 | SSE 16 | SE 16 | SE 10 | E 9 | SW 10 | SE 10 | SE 10 | SW 9 | SW 8 | E 8 | SE 13 | SE 10 | S 7 | S 7 | ESE 5 | S 7 | S 7 | SW 12 |
| kJ | 2 | 4 | 10 | 25 | 10 | 16 | 14 | 27 | 17 | 39 | 13 | 11 | 5 | 7 | 35 | 9 | 8 | 2 | 8 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 4 | — | — | — | — | — | — | — | E 3 | ESE 3 | ESE 4 | ESE 4 | ESE 5 | — | — | — | S 7 | — | — | — |
| kJ | 3 | 9 | — | — | — | — | — | — | — | 1 | 2 | 6 | 16 | 19 | — | — | — | 15 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 76 | 76 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 727 | 13 | 14 | 703 | 16 | 14 | 820 | 13 |
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.
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