Surf Forecasts:
Yonabaru surf forecast from 18 Jul 2026:
- Most powerful swell: Thursday 23 Jul, 6AM (local time) - 1.5ft (0.5m), 11s period, E swell with 57 kJ wave energy.
Best Forecast Surf Conditions for Yonabaru this week:
The most powerful waves expected at Yonabaru in the next 16 days are 0.5m 11s and forecast to arrive on Thursday (Jul 23) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 8s period and expected on Sunday (Jul 19) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Thu 23rd Jul) | 1.5ft (0.5m) 11s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
G'day, Rusty here, and I'm looking at this whole 16-day stretch for Yonabaru, and honestly, it's a bit of a slow burner. There's a proper long gap of nothing much at the start, so you'll want to be patient. The first real sniff of action doesn't come until late July, and then it's a pretty short window of solid, clean swell before it fades back to flatness.
Let's start with the first recommendation. Monday the 27th of July morning, we finally get something to talk about. A solid 6ft swell rolls in from the ESE, and with a period of 16 seconds, that's a proper long-period groundswell bringing a heap of energy (1507). The wind is a cross-off from the NNW, keeping it clean. Now, this is a beach break, and a long period swell like this can make it break a bit too straight and fast, but for the experienced crew, the power is there. The water temp is sitting at 82°, which is a bit colder than normal for this time of year, so that's a little unusual.
The standout for the whole period, without a doubt, is Wednesday the 29th of July. The morning session sees a 5ft swell from the E with a 13-second period, delivering strong energy (817). The wind is off from the W, 12 mph, giving us clean, groomed faces. The waves are a good size for a fun session, not too big, not too small. The afternoon is even better, dropping to 5ft from the E with a 12-second period, but the wind goes light offshore from the W at 9 mph, glassing it up. This is the pick of the bunch. The description says "expect very good surf conditions," and I'm feeling it. It's a clean, consistent run of swell with offshore winds. Crowds are possible at Yonabaru, so get there early for the best of it.
After that, the energy drops away fast. Thursday the 30th of July morning, the swell is down to 2ft, and by the weekend it's a complete flat spell. There's a tiny blip of 1.0ft on Sunday the 2nd of August, but with a period of 18 seconds, the energy is barely there (85), and it's just ordinary. So, your window is really Monday the 27th through to Wednesday the 29th. The Wednesday is the absolute standout, but the Monday morning has some serious grunt if you're after a bigger, more powerful wave.
Keep your eyes peeled for that Wednesday, that's the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 27°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Tue afternoon, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | E 9 | SW 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 11 | ENE 10 | ENE 10 | E 10 | ENE 10 | ENE 10 | E 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 0 | 16 | 15 | 14 | 15 | 28 | 29 | 27 | 26 | 26 | 25 | 25 | 24 | 36 | 34 | 50 | 32 | 31 | 30 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | glassy | glassy | cross | glassy | cross-on | cross-on | cross-on |
High Tide | 9:42PM2.01m | 9:22AM2.01m | 10:15PM1.99m | 10:10AM1.89m | 10:50PM1.96m | 11:06AM1.75m | 11:29PM1.93m | 12:16PM1.62m | 00:15AM1.89m | 1:52PM1.55m | 1:12AM1.87m | 3:40PM1.57m | 2:20AM1.87m | |||||||
Low Tide | 3:13PM0.36m | 3:31AM0.87m | 3:49PM0.50m | 4:15AM0.84m | 4:25PM0.67m | 5:06AM0.83m | 5:05PM0.86m | 6:07AM0.81m | 5:51PM1.04m | 7:19AM0.78m | 6:53PM1.20m | 8:39AM0.70m | 8:19PM1.31m | |||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — |
 | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 28 | 30 | 30 | 29 | 29 | 29 | 28 | 29 | 29 | 27 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 |
Feels °C | 32 | 33 | 33 | 33 | 33 | 31 | 31 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | W 7 | SW 8 | SW 8 | SW 8 | W 7 | W 8 | W 7 | E 10 | SW 7 | E 9 | SW 7 | SW 6 | SW 6 | ENE 8 | ENE 10 | ENE 10 | E 10 | ENE 10 | ENE 10 | E 10 |
| kJ | 25 | 77 | 67 | 75 | 14 | 18 | 14 | 29 | 48 | 26 | 16 | 20 | 19 | 14 | 36 | 34 | 50 | 32 | 31 | 30 |
Swell 2 Height (m) Direction Period (s) | E 9 | W 7 | W 7 | W 7 | E 9 | E 9 | E 9 | W 7 | E 9 | W 7 | E 9 | E 9 | E 9 | ENE 11 | SW 7 | SW 6 | WSW 6 | SSE 9 | SW 7 | SW 8 |
| kJ | 16 | 14 | 27 | 25 | 14 | 15 | 28 | 8 | 27 | 14 | 26 | 25 | 25 | 24 | 13 | 6 | 3 | 8 | 8 | 9 |
Swell 3 Height (m) Direction Period (s) | SE 8 | W 9 | E 9 | E 9 | SSE 9 | SSE 9 | SSE 9 | W 9 | W 7 | S 7 | W 6 | W 7 | ENE 13 | SW 6 | S 7 | ESE 10 | SSE 10 | S 7 | SSE 9 | S 7 |
| kJ | 11 | 14 | 16 | 15 | 8 | 8 | 7 | 6 | 9 | 4 | 7 | 3 | 16 | 9 | 4 | 10 | 10 | 4 | 8 | 4 |
Wind waves Height (m) Direction Period (s) | SW 8 | — | — | — | SW 7 | SW 7 | SW 7 | SW 7 | — | SW 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 63 | — | — | — | 77 | 67 | 60 | 57 | — | 29 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 88 | 27 | 13 | 76 | 76 | 89 | 88 | 76 | 14 | 703 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 680 | 785 | 672 |
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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