Surf Forecasts:
Yonabaru surf forecast from 19 Jul 2026:
- Most powerful swell: Monday 27 Jul, 9AM (local time) - 11ft (3.5m), 14s period, SE swell with 4,555 kJ wave energy.
Best Forecast Surf Conditions for Yonabaru this week:
The most powerful waves expected at Yonabaru in the next 16 days are 3.5m 14s and forecast to arrive on Monday (Jul 27) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 7s period and expected on Monday (Jul 20) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Mon 27th Jul) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Yonabaru over the next 16 days.
The Lowdown
Alright, let’s break it down. It’s pretty dead in the water for the first week and then some. We’re looking at tiny, weak surf—around 1 ft to 1 ft—with hardly any energy behind it. The combined swell energy is in the teens to low 40s, which is basically nothing. You could mess around on a longboard but don’t expect a real wave.
The first real surf worth paddling out for hits on Monday, August 3rd at Yonabaru. That morning we’ve got a 6 ft swell from the NNE with a long 13-second period. Combined energy jumps to 1326, so there’s real groundswell in the water. The wind is light and cross-off, 6 mph, leaving the surface glassy clean. That’ll be the best on offer—good shape, decent power, and the break handles the direction well. It’s right for intermediate surfers, not too heavy but plenty of push. Water temp is about what you’d expect for this time of year.
That afternoon it drops a touch to 6 ft from the NNW at 12 seconds, still clean with a light offshore breeze. Tuesday morning the 4th has some fun 3 ft east swell with a very long 17-second period and offshore wind, but the size is smaller. The break is fairly consistent overall, so once that first pulse shows up, it should keep going.
So, hang tight through the flat spell. The 3rd of August is your day—Yonabaru has the goods.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Mon morning, min 27°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sat morning. Warm (max 29°C on Thu morning, min 27°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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) | 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 | SE 11 | SE 10 | E 5 | SE 11 | SE 11 | SE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 28 | 29 | 27 | 26 | 26 | 25 | 25 | 24 | 35 | 33 | 50 | 33 | 32 | 30 | 18 | 16 | 21 | 242 | 622 | 1298 |
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 | glassy | glassy | glassy | glassy | cross-on | cross-on | on | cross-on | on | on | cross-on | cross-on | on |
High Tide | 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 | 5:00PM1.68m | 3:28AM1.92m | 5:53PM1.79m | ||||||||
Low Tide | 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 | 9:52AM0.58m | 9:47PM1.33m | 10:50AM0.45m | 10:54PM1.29m | ||||||||
 |  |  | | |  | | | | |  | | | | | | |  | | |  | |
 | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 7:22 | — | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | 2 | — | 1 | — | 1 | 6 |
Temp °C | 30 | 29 | 29 | 30 | 29 | 27 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 29 | 28 | 29 | 29 | 27 |
Feels °C | 33 | 32 | 32 | 33 | 32 | 32 | 34 | 34 | 33 | 34 | 34 | 33 | 33 | 33 | 31 | 31 | 31 | 30 | 31 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 7 | W 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | ENE 10 | ENE 10 | E 10 | ENE 10 | ENE 10 | E 10 | ENE 10 | E 9 | E 9 | SE 11 | SE 11 | SE 12 |
| kJ | 41 | 14 | 47 | 29 | 29 | 21 | 21 | 19 | 9 | 35 | 33 | 50 | 33 | 32 | 30 | 18 | 15 | 15 | 242 | 622 | 1298 |
Swell 2 Height (m) Direction Period (s) | W 8 | E 9 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 11 | SW 7 | SW 7 | SW 7 | S 8 | S 8 | S 7 | SE 11 | SE 10 | SE 14 | E 9 | E 9 | E 9 |
| kJ | 18 | 28 | 29 | 27 | 26 | 26 | 25 | 25 | 24 | 14 | 8 | 8 | 4 | 4 | 10 | 18 | 16 | 51 | 14 | 14 | 6 |
Swell 3 Height (m) Direction Period (s) | E 9 | SSE 9 | W 6 | W 8 | W 7 | W 6 | S 7 | ENE 13 | ENE 8 | ESE 10 | ESE 10 | SSE 10 | SE 9 | SSE 9 | SE 11 | S 8 | S 8 | SE 10 | S 8 | SW 7 | — |
| kJ | 15 | 7 | 7 | 19 | 8 | 7 | 4 | 16 | 13 | 10 | 10 | 10 | 14 | 9 | 5 | 10 | 10 | 15 | 5 | 2 | — |
Wind waves Height (m) Direction Period (s) | — | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | E 3 | E 3 | E 4 | E 5 | E 5 | ENE 9 | ENE 9 |
| kJ | — | 48 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 4 | 21 | 25 | 31 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 76 | 76 | 88 | 76 | 14 | 14 | 14 | 14 | 76 | 14 | 14 | 14 | 10 | 14 | 16 | 672 | 672 | 836 | 672 | 13 | 16 |
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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