Surf Forecasts:
Yonabaru surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 12PM (local time) - 11ft (3.5m), 18s period, E swell with cross-shore winds.
- Most powerful swell: Thursday 6 Aug, 3AM (local time) - 18ft (5.5m), 19s period, E swell with 20,779 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 glassy as the swell arrives.
The most powerful waves expected at Yonabaru in the next 16 days are 5.5m 19s and forecast to arrive on Thursday (Aug 06) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 8s period and expected on Tuesday (Aug 04) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 2nd Aug) | 1ft (0.3m) 18s |
| Best Surf | 12PM (Wed 5th Aug) | 11ft (3.5m) 18s |
| Most Powerful | 3AM (Thu 6th Aug) | 18ft (5.5m) 19s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's get real about what's on offer for the Yonabaru area.
To be straight with you, the next week and a half is looking pretty flat and messy. The first few days, from Thursday the 30th of July right through the weekend, we’re dealing with tiny, weak swell—around 0.6ft to 1ft—and a real lack of energy. The combined energy is only in the teens and low twenties (24 to 19), which is barely a ripple. The winds are light, some glassy windows, but the waves just aren't there. You’d be floating, not surfing.
The action picks up a little as we head into the new week. By Monday the 3rd of August, the swell starts to build, reaching 3ft out of the ESE with a long period of 15 seconds, and the combined energy jumps up to a moderate 516. The wind is a bit cross, so it’s not perfect, but you might find a workable one. By Tuesday the 4th, the swell is pushing 6ft to 7ft from the east, with a period of 18 seconds and combined energy in the strong range (2124 to 2484). The wind is a moderate cross-shore, making it lumpy. This is getting a bit sizeable for a beginner spot, and the quality is marginal.
The real standout, and the only one I’d call a true highlight in this 16-day window, is Thursday the 6th of August. The models are showing a massive, clean swell hitting the coast. The swell is predicted to be 18ft from the east, with a period of 19 seconds, and the combined energy is a whopping 25018. The wind is cross-offshore and clean. However—and this is a big however—the forecast is that this break is going to be too big to handle. At this size, it’s strictly for experts, and even then, it’s a monumental call. For a beginner-friendly break like Yonabaru, this is a no-go zone.
After that, the forecast gets even uglier. From Friday the 7th through the following week, we’re looking at storm-force winds, with poor conditions and a complete lack of quality. The swell drops back to under 3ft, but the wind is onshore or cross-onshore, making it a messy, choppy mess. The energy levels are low, and the “poor surf conditions” label is consistent.
So, the honest truth for Yonabaru: the first week is flat, the second week is either too big or too blown out. There’s no real window of "good" surf for the average paddler here. The best you’ll get is a look at that massive 18ft swell on the 6th, but only if you're a seasoned charger and know the risks. For everyone else, this is a time to grab a beer, watch the chaos, and wait for the next proper swell.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Thu morning, min 27°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue afternoon. Warm (max 31°C on Mon afternoon, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||
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 | SE 9 | SE 9 | SE 10 | ESE 9 | SE 9 | E 9 | SE 10 | E 9 | SE 9 | ESE 16 | ESE 17 | ESE 15 | ESE 15 | ESE 16 | ESE 18 | ESE 18 | E 18 | ESE 18 |
Wave Graph  | |||||||||||||||||||
 kJ | 22 | 22 | 22 | 14 | 17 | 13 | 8 | 16 | 6 | 13 | 50 | 157 | 339 | 507 | 644 | 1317 | 2112 | 2484 | 3481 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | cross-off | glassy | glassy | cross-off | cross-on | glassy | glassy | cross-off | cross-off | cross | cross | cross-off | cross | cross | cross | cross |
High Tide | 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 | 10:25AM1.86m | 10:40PM1.99m | |||||||
Low Tide | 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 | 4:21AM0.74m | 4:23PM0.82m | |||||||
 |  | | |  | | | | | | | | | | | | |  |  | |
 | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | 7:17 | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 |
Temp °C | 29 | 30 | 30 | 28 | 29 | 30 | 28 | 29 | 30 | 28 | 30 | 30 | 28 | 30 | 31 | 29 | 30 | 30 | 28 |
Feels °C | 34 | 35 | 35 | 32 | 34 | 35 | 33 | 33 | 35 | 33 | 33 | 32 | 31 | 31 | 33 | 33 | 31 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 10 | ESE 9 | SW 8 | SW 8 | SE 10 | SSW 8 | SE 9 | ESE 16 | ESE 17 | ESE 15 | ESE 15 | ESE 16 | ESE 18 | ESE 18 | E 18 | ESE 18 |
| kJ | 22 | 22 | 22 | 14 | 17 | 10 | 10 | 16 | 6 | 13 | 50 | 157 | 339 | 507 | 644 | 1317 | 2112 | 2484 | 3481 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SE 9 | E 9 | SW 8 | S 8 | S 7 | SE 9 | ESE 8 | ESE 8 | SSE 8 | S 7 | S 7 | S 8 | SSE 8 | S 8 |
| kJ | 9 | 9 | 10 | 10 | 10 | 13 | 6 | 10 | 5 | 4 | 13 | 14 | 13 | 7 | 4 | 4 | 12 | 24 | 10 |
Swell 3 Height (m) Direction Period (s) | ESE 5 | ESE 5 | S 7 | E 8 | SE 6 | E 9 | ESE 9 | E 9 | E 9 | SW 8 | S 7 | SE 9 | SSE 9 | S 7 | SE 9 | SE 14 | — | — | — |
| kJ | 2 | 2 | 1 | 5 | 1 | 6 | 8 | 6 | 6 | 2 | 4 | 13 | 8 | 4 | 3 | 8 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 5 | N 5 | — | N 3 | N 4 | N 4 | N 4 | N 5 | — | NNE 5 |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 2 | — | 3 | 9 | 14 | 14 | 12 | — | 45 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 680 | 720 | 1013 | 89 | 781 | 855 | 1028 | 1028 | 1064 | 672 | 12 | 14 | 17 | 670 | 727 | 599 | 607 | 670 | 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.
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