Surf Forecasts:
Yonabaru surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 3PM (local time) - 11ft (3.5m), 18s period, ESE swell with cross-shore winds.
- Most powerful swell: Thursday 6 Aug, 9AM (local time) - 15ft (4.5m), 19s period, E swell with 14,618 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 4.5m 19s and forecast to arrive on Thursday (Aug 06) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 04) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 2nd Aug) | 1ft (0.3m) 18s |
| Best Surf | 3PM (Wed 5th Aug) | 11ft (3.5m) 18s |
| Most Powerful | 9AM (Thu 6th Aug) | 15ft (4.5m) 19s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s look at Yonabaru (Okinawa) and what’s on the table.
We start with a flat spell. The first few days have tiny waves – barely 0.4ft or less – and the combined energy is weak (22). Water temp is 86°F, which feels a bit warmer than usual for this time of year. Thursday and Friday have glassy or calm winds, so you could sit there on a foamie, but there’s no real surf.
Saturday the 2nd of August: still small, but the period jumps to 16 seconds – a long-period groundswell trying to push. Energy climbs to 66, still weak. Sunday afternoon sees 0.6ft at 17 seconds, energy 257 – moderate now, but not enough height to ride. Winds are clean, cross-off from the NNW.
Monday the 3rd of August: morning has 1ft at 15 seconds, energy 626 – moderate to strong. Wind is cross from the north, so a little chop. Afternoon cleans up nicely with cross-off breezes, swell 1ft at 17 seconds, energy 1022 – strong, decent energy. The direction is ESE, not the NE ideal, but the quality is there. This is your best window.
Tuesday the 4th of August: swell pushes to 2ft morning and 2ft afternoon, period 18 seconds, energy 2290 – strong. Winds are cross from the north, and conditions are marginal for tides. This is getting too big for beginners.
Wednesday the 5th of August: for experts only. Morning 3ft at 18 seconds, energy 4860 – very strong. Afternoon 4ft, same period, energy 7201 – cranked. Wind is cross and moderate, but the swell is too big for this break. With a beach-and-reef setup and cross-shore wind, kite surfing might be a better bet than paddle surfing.
Thursday the 6th onward: it falls apart. Severe gales and storm-force winds (up to 65 mph) on Thursday and Friday, with huge but messy swell (5ft). Unsurfable. The weekend and next week bring tiny waves (0.3–0.5ft) and persistent onshore or cross-onshore winds from the SE or ESE. Energy drops into the double digits – 40, 51, 32 – useless.
The second week (from the 10th of August) offers nothing: small waves under 1.0ft, onshore winds, weak energy.
Best bet: Monday afternoon the 3rd of August. That 1ft ESE groundswell with clean cross-off winds and strong energy is the one to aim for. For experts only: Wednesday the 5th afternoon if you’re brave, but the size and wind will test you.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 31°C on Mon morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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 9 | SE 9 | SE 10 | ESE 9 | SE 9 | E 9 | SE 10 | E 9 | SE 9 | ESE 16 | ESE 17 | ESE 16 | ESE 15 | ESE 17 | ESE 17 | E 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | E 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 22 | 22 | 14 | 17 | 13 | 8 | 16 | 6 | 13 | 48 | 232 | 357 | 519 | 1009 | 1189 | 1810 | 2290 | 3162 | 4860 | 7201 | 11338 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-off | glassy | glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off |
High Tide | 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 | 11:23AM1.70m | 11:19PM1.94m | ||||||||
Low Tide | 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 | 5:12AM0.75m | 5:01PM1.01m | ||||||||
 | |  | | | |  | | | | | | | | | |  |  | | |  | |
 | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | 1 | — |
Temp °C | 29 | 31 | 29 | 29 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 31 | 31 | 28 | 31 | 30 | 28 | 31 | 31 | 29 |
Feels °C | 34 | 36 | 34 | 35 | 35 | 33 | 35 | 34 | 32 | 33 | 33 | 32 | 33 | 33 | 32 | 34 | 33 | 32 | 33 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 10 | ESE 9 | SE 9 | SW 8 | SE 10 | SSW 8 | SE 9 | ESE 16 | ESE 17 | ESE 16 | ESE 15 | ESE 17 | ESE 17 | E 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | E 19 |
| kJ | 22 | 22 | 14 | 17 | 13 | 10 | 16 | 6 | 13 | 48 | 232 | 357 | 519 | 1009 | 1189 | 1810 | 2290 | 3162 | 4860 | 7201 | 11338 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | E 9 | SW 8 | E 9 | S 7 | SE 9 | E 8 | ESE 8 | ESE 18 | SSE 7 | SSE 7 | SSW 8 | SSW 8 | S 8 | — | — | — |
| kJ | 9 | 10 | 10 | 10 | 10 | 6 | 10 | 6 | 4 | 13 | 12 | 6 | 107 | 10 | 5 | 26 | 20 | 18 | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | E 8 | SE 6 | E 9 | ESE 9 | E 9 | S 8 | SSW 8 | ESE 7 | SE 9 | SE 9 | S 7 | SE 9 | SSE 9 | — | — | — | — | — | — |
| kJ | 4 | 1 | 5 | 1 | 6 | 8 | 6 | 5 | 6 | 5 | 13 | 13 | 4 | 13 | 7 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NW 5 | W 8 | NNW 3 | N 4 | WNW 3 | W 7 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 11 | 2 | 6 | 2 | 4 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 720 | 1013 | 89 | 781 | 855 | 1028 | 1541 | 1037 | 672 | 12 | 14 | 0 | 670 | 0 | 0 | 607 | 607 | 17 | 47 | 607 | 607 |
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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