
Surf Forecasts:
Yonabaru surf forecast from 27 Jul 2026:
- Best quality surf: Monday 3 Aug, 6AM (local time) - 2.5ft (0.8m), 15s period, ESE swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 3AM (local time) - 4ft (1.2m), 16s period, ESE swell with 721 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3PM (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 3PM. The primary swell is predicted to be 0.4m and 16s period. 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 1.2m 16s and forecast to arrive on Tuesday (Aug 04) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 8s period and expected on Tuesday (Jul 28) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 2nd Aug) | 1.5ft (0.4m) 16s |
| Best Surf | 6AM (Mon 3rd Aug) | 2.5ft (0.8m) 15s |
| Most Powerful | 3AM (Tue 4th Aug) | 4ft (1.2m) 16s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
Alright, let’s talk about what’s coming up for Yonabaru. Right now, it’s flat. I mean, really flat. For the next few days, we’re looking at tiny little dribblers—knee-high at best, and the wind’s mostly onshore or side-shore. Not worth paddling out. The swell energy is barely registering (35 to 19, just weak numbers). You’ll be bobbing around on a paddleboard, not surfing. That stretch from Tuesday the 28th of July right through to Sunday the 2nd of August is a total write-off. Don’t bother.
Then things start to change. On Sunday afternoon, we finally see a pulse of long-period energy (16 seconds) come in, but it’s still only 1 ft and the combined energy jumps to 86—still weak, but a sign of life. Monday the 3rd of August is where it gets interesting. Morning and afternoon both show 3 ft of swell out of the ESE with a 14-second period, and the energy is moderate at 371. The wind is cross-offshore, clean. That’s the first real window. It’s small but clean, and for a beginner-friendly break like Yonabaru (fairly consistent, sometimes crowded), that’s a nice little session. The water temp is about average for this time of year.
Tuesday the 4th of August brings a bigger jump: 4 ft to 5 ft by the afternoon, with an 18-second period from the ESE. That’s a long-period groundswell, and the energy climbs to strong levels (948, then 1500). The wind turns cross-shore and stronger in the afternoon, so the morning looks cleaner. At 5 ft, it’s still okay for intermediates, but the long period means it might wall up a bit at this beach break—could be a bit tricky with the sets.
The standout window looks to be Wednesday the 5th of August through Thursday the 6th. On Wednesday, we get 7 ft to 7 ft of east swell with an 18–19 second period, energy in the strong range (2854–3577). The wind is cross-offshore and clean. That's solid, powerful surf. Thursday morning hits 10 ft with 18 seconds and energy at 6879—that’s very strong. By Thursday afternoon it’s 12 ft, same direction, energy at 7387. But here’s the thing: the file says that swell is predicted to be too big for this break. For a beginner spot, 12 ft with that kind of power is expert-only, and even then, the 19-second period means it’ll be a freight train. Only go out if you really know what you’re doing.
After that, Friday the 7th of August still has good size (8 ft morning, 5 ft afternoon) but the wind cranks to 19 mph offshore—fresh, clean, but strong. The swell shifts to ENE. Energy stays strong (3452 morning, 1326 afternoon). Saturday the 8th of August is a real surprise: the swell direction swings to NNE, size around 6–6 ft, period 13 seconds, and the wind goes light and variable, glassy by afternoon. Combined energy is moderate to strong (1461 to 1177). That’s a beautiful window for experienced surfers—clean, glassy, and not as intimidating as the earlier giant stuff.
Then from Sunday the 9th onward, it all falls apart again. Onshore winds, dropping swell, poor conditions. A few days of nothing until the middle of the month, but nothing worth chasing.
So, the best bets: Monday the 3rd of August for a clean, small session if you’re learning or want a longboard. But the real standout is Saturday the 8th of August—glassy conditions, solid 6 ft to 6 ft swell from the NNE, and a nice 13-second period. That’s the one to circle on the calendar. Just keep in mind it’s more than a week out, so things could shift.
Stay stoked.
- Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 30°C on Tue morning, min 27°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Fri morning, min 27°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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 | 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 16 | ESE 15 |
Wave Graph | |||||||||||||||||||
35 | 35 | 38 | 25 | 24 | 15 | 22 | 22 | 22 | 14 | 17 | 13 | 6 | 16 | 18 | 12 | 5 | 86 | 231 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | glassy | glassy | glassy | cross-off | glassy | glassy | cross | glassy | glassy | cross-off | off | off | cross-off | cross-off | cross-off |
High Tide | 5:21AM2.07m | 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 | |||||||
Low Tide | 11:46PM1.21m | 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 | |||||||
— | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | |
7:19 | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | |
mm | 1 | — | — | 4 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 30 | 30 | 29 | 30 | 30 | 28 | 29 | 30 | 28 | 30 | 30 | 28 | 29 | 30 | 28 | 30 | 30 | 28 |
Feels °C | 34 | 33 | 33 | 33 | 35 | 36 | 33 | 34 | 35 | 33 | 35 | 35 | 32 | 34 | 33 | 32 | 33 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | ESE 10 | SE 10 | SE 5 | SE 10 | SE 9 | SE 9 | SE 9 | SE 10 | ESE 9 | SW 8 | SW 8 | SE 10 | SE 11 | SE 9 | W 5 | ESE 16 | ESE 15 |
32 | 29 | 38 | 25 | 6 | 15 | 22 | 22 | 22 | 14 | 17 | 10 | 11 | 16 | 18 | 12 | 5 | 86 | 231 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | S 8 | S 7 | SE 10 | SE 5 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SE 9 | E 9 | SW 8 | SW 8 | S 8 | S 7 | WNW 6 | W 6 |
35 | 35 | 18 | 10 | 24 | 6 | 9 | 9 | 10 | 10 | 10 | 13 | 6 | 11 | 10 | 5 | 4 | 7 | 6 | |
Swell 3 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | S 7 | SW 8 | ESE 5 | S 7 | S 7 | E 8 | SE 6 | E 9 | SE 9 | E 9 | S 8 | SW 8 | ESE 7 | S 7 | SSE 9 |
9 | 2 | 10 | 9 | 9 | 10 | 2 | 4 | 3 | 5 | 1 | 6 | 3 | 6 | 5 | 10 | 5 | 4 | 8 | |
Wind waves Height (m) Direction Period (s) | ESE 3 | — | ESE 3 | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 | — | 2 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 13 | 836 | 672 | 14 | 14 | 14 | 720 | 1013 | 89 | 1003 | 820 | 1560 | 1562 | 1570 | 672 | 672 | 0 | 0 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










