
Surf Forecasts:
Yonabaru surf forecast from 1 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 6PM (local time) - 11ft (3.5m), 18s period, E swell with cross-shore winds.
- Most powerful swell: Friday 7 Aug, 12AM (local time) - 21ft (6.5m), 18s period, E swell with 28,603 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 12PM (local time) - 1.5ft (0.4m), 16s 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 12PM. The primary swell is predicted to be 0.4m and 16s 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 6.5m 18s and forecast to arrive on Friday (Aug 07) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 10.5m 14s period and expected on Saturday (Aug 08) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 2nd Aug) | 1.5ft (0.4m) 16s |
| Best Surf | 6PM (Wed 5th Aug) | 11ft (3.5m) 18s |
| Most Powerful | 12AM (Fri 7th Aug) | 21ft (6.5m) 18s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for the next couple of weeks. It's a bit of a mixed bag, so let's break it down.
Right now, we're looking at a bit of a flat spell to kick things off. The first few days are pretty quiet, nothing really worth paddling out for. We've got a tiny 1.0 ft ESE swell on Sunday the 2nd, but it's crossed up with no energy to speak of (66). That's a hard pass. It'll stay poor through the weekend and into Monday morning.
Things start to get a little more interesting from Monday afternoon the 3rd. That 4 ft ESE groundswell (period 16 seconds) from the north-northwest starts to show some signs of life, with a clean look and combined energy jumping to 644. It's still small, but there's a pulse coming.
The standout window looks to be Tuesday the 4th and Wednesday the 5th. We've got a building swell that's pushing into the 5 ft to 10 ft range, from the east and east-southeast, with that long 18-second period. The combined energy is massive, hitting between 1646 and 5584. Now, that's proper groundswell. This is going to be a lot of water moving. For Yonabaru, a fairly exposed spot, the swell direction is east-southeast, which is a good angle for it, and the optimum swell direction is NE, so it's not perfect but it's workable. The winds are cross-shore, mostly from the north, so it won't be glassy, but it'll be rideable. The water temp is about average for this time of year, no major anomalies. Keep in mind though, by Wednesday afternoon it's 10 ft, which is getting into the expert zone only. For the Tuesday, the 5 ft to 6 ft is still solid but manageable for confident intermediates.
Then it gets real. Thursday the 6th, the swell absolutely hammers in. We're looking at 18 ft from the east with a 19-second period. The energy reading is 21067. That is a monster, and the notes say it's too big for this break. Winds are also howling from the north at 31-40 mph. This is big, dangerous, and unsurfable here. Friday the 7th gets even bigger with a 30 ft north swell, but the wind switches onshore from the ESE, making it a complete mess. After that, the whole second week goes to crap.
From the 8th of August right through to the 17th, it's a write-off. We're looking at storm-force winds, onshore winds, and a lot of lumpy, blown-out junk. There might be a brief flash of something on the 15th, with a clean 3 ft ESE groundswell, but it's got cross-on winds in the afternoon, and the run of poor days before it and after it is so long it's not worth getting excited about.
Honestly, the only real window to get wet is Monday afternoon the 3rd through to Wednesday the 5th. If you want to paddle out, that's your time. The Tuesday morning session (4th) with that 6 ft, 18-second east swell and light cross-shore winds looks like the absolute best bet of the whole forecast. It'll have serious energy (2065), so you'll get plenty of push.
So, to sum it up: don't bother this weekend. Get ready for a solid pulse mid-week (Aug 3rd-5th), with Tuesday the 4th being the pick. After that, it's a long stretch of dud days. Forecasts can change, but right now, this stretch looks grim.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue afternoon. Warm (max 31°C on Mon morning, min 28°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 155mm), heaviest during Thu night. Warm (max 31°C on Wed morning, min 27°C on Tue night). Winds increasing (light winds from the NE on Tue night, extremely windy from the N by Thu night). | ||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 | ESE 16 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | E 18 | ESE 18 | E 18 | E 18 | ESE 18 | E 19 | E 19 | E 18 | E 18 | N 12 | E 13 | NW 11 |
Wave Graph | |||||||||||||||||||
13 | 48 | 168 | 357 | 392 | 636 | 793 | 1646 | 2065 | 2744 | 4084 | 5510 | 11989 | 20018 | 20799 | 28603 | 24102 | 3781 | 237 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross | cross | cross | cross-off | cross | cross | cross | cross-on | cross | cross | cross | cross | cross-off | cross-off | cross | on | cross-on |
High Tide | 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 | 2:39PM1.53m | 1:17AM1.84m | ||||||
Low Tide | 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 | 7:36AM0.75m | 7:05PM1.34m | |||||||
— | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | |
7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | |
mm | — | — | — | — | — | — | 1 | — | 3 | 2 | — | — | 1 | 4 | 9 | 111 | 25 | 3 | 206 |
Temp °C | 29 | 30 | 30 | 29 | 31 | 31 | 29 | 31 | 30 | 28 | 31 | 31 | 29 | 29 | 29 | 29 | 30 | 30 | 29 |
Feels °C | 33 | 34 | 34 | 32 | 34 | 34 | 32 | 35 | 34 | 32 | 33 | 32 | 29 | 26 | 24 | 15 | 31 | 33 | 15 |
Swell 1 Height (m) Direction Period (s) | SE 9 | ESE 16 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | E 18 | ESE 18 | E 18 | E 18 | ESE 18 | E 19 | E 19 | E 18 | E 18 | E 16 | NW 12 | NW 11 |
13 | 48 | 168 | 357 | 392 | 636 | 793 | 1646 | 2065 | 2744 | 4084 | 5510 | 11989 | 20018 | 20799 | 28603 | 13289 | 2928 | 237 | |
Swell 2 Height (m) Direction Period (s) | S 7 | SE 9 | SE 9 | E 8 | E 8 | SSE 7 | S 7 | SSW 8 | SSW 8 | SSE 8 | S 7 | — | — | — | — | — | — | E 13 | NNE 16 |
4 | 13 | 13 | 12 | 5 | 5 | 4 | 13 | 13 | 22 | 10 | — | — | — | — | — | — | 3781 | 144 | |
Swell 3 Height (m) Direction Period (s) | SSW 8 | ESE 7 | E 8 | SE 9 | SSE 9 | SE 14 | SW 7 | — | — | — | — | — | — | — | — | — | — | NNE 13 | — |
6 | 5 | 5 | 13 | 8 | 8 | 2 | — | — | — | — | — | — | — | — | — | — | 2679 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 3 | WNW 7 | N 4 | — | — | SE 8 | NNE 5 | NNE 6 | NNE 6 | N 8 | N 9 | NNE 11 | N 12 | W 10 | S 14 |
— | — | — | — | 2 | 5 | 10 | — | — | 20 | 23 | 74 | 182 | 1049 | 2217 | 8197 | 24102 | 2081 | 40775 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 672 | 14 | 12 | 14 | 14 | 0 | 14 | 14 | 14 | 17 | 47 | 607 | 607 | 760 | 1309 | 607 | 785 | 785 | 727 |
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.











