Surf Forecasts:
Yona Bay surf forecast from 21 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 12AM (local time) - 1.5ft (0.5m), 9s period, E swell with glassy winds.
- Most powerful swell: Thursday 23 Jul, 3AM (local time) - 2.5ft (0.7m), 11s period, ENE swell with 103 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 12AM (local time) - 1.5ft (0.5m), 9s period with E swell.
Best Forecast Surf Conditions for Yona Bay this week:
The surf forecast for Yona Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 22) at 12AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.4m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Yona Bay in the next 16 days are 0.7m 11s and forecast to arrive on Thursday (Jul 23) 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 1.2m 9s period and expected on Tuesday (Jul 28) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 22nd Jul) | 1.5ft (0.5m) 9s |
| Best Surf | 12AM (Wed 22nd Jul) | 1.5ft (0.5m) 9s |
| Most Powerful | 3AM (Thu 23rd Jul) | 2.5ft (0.7m) 11s |
Table - best surf conditions forecast for Yona Bay over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 30°C on Fri morning, min 27°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Mon morning. Warm (max 30°C on Fri afternoon, min 27°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
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 9 | NE 12 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 42 | 42 | 41 | 41 | 47 | 69 | 78 | 77 | 56 | 55 | 37 | 29 | 28 | 28 | 16 | 16 | 0 | 14 | 14 | 7 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | cross-off | cross-off | off | cross-off | off | off | off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off |
High Tide | 00:01AM1.76m | 1:03PM1.41m | 00:48AM1.70m | 3:00PM1.35m | 1:48AM1.65m | 5:00PM1.41m | 3:00AM1.63m | 6:04PM1.51m | 4:07AM1.65m | 6:40PM1.60m | 5:00AM1.70m | 7:07PM1.69m | ||||||||
Low Tide | 5:38PM0.87m | 6:53AM0.78m | 6:21PM1.05m | 8:12AM0.78m | 7:23PM1.19m | 9:35AM0.73m | 9:05PM1.28m | 10:43AM0.64m | 10:41PM1.29m | 11:32AM0.55m | 11:40PM1.24m | 12:10PM0.46m | 00:21AM1.18m | |||||||
 |  | |  | | | | | | | | | | | | | |  | |  | |
 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — |
 | 7:21 | — | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:17 | — |
mm | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 |
Temp °C | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 28 |
Feels °C | 34 | 33 | 34 | 33 | 32 | 33 | 32 | 32 | 34 | 34 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SE 7 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | S 10 | S 9 | SSE 8 |
| kJ | 42 | 42 | 41 | 41 | 47 | 69 | 78 | 77 | 56 | 55 | 37 | 37 | 27 | 119 | 90 | 92 | 68 | 145 | 127 | 118 |
Swell 2 Height (m) Direction Period (s) | W 7 | W 6 | W 6 | NE 12 | ENE 8 | W 6 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 7 | ENE 9 | ENE 9 | SE 10 | SE 10 | SE 10 | SE 11 | ESE 10 | SE 10 | ESE 10 |
| kJ | 17 | 13 | 7 | 39 | 13 | 3 | 10 | 10 | 9 | 8 | 8 | 29 | 28 | 25 | 26 | 28 | 29 | 43 | 27 | 41 |
Swell 3 Height (m) Direction Period (s) | SW 7 | SW 7 | ENE 13 | W 6 | W 6 | SE 10 | W 5 | S 7 | S 7 | S 8 | SE 11 | S 8 | SE 10 | ENE 9 | ENE 9 | ENE 9 | SSE 10 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 7 | 7 | 17 | 6 | 3 | 4 | 2 | 4 | 4 | 4 | 19 | 12 | 26 | 28 | 16 | 16 | 36 | 14 | 14 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SE 3 | SE 5 | SE 7 | SE 7 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 12 | 67 | 55 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 597 | 66 | 66 | 64 | 64 | 66 | 66 | 66 | 937 | 597 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Yona Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Yona Bay Surf forecast
The above surf forecast table for Yona Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Yona Bay can be found by selecting the local surf guide option on the grey menu. Our Yona Bay 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 (Yona Bay) 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 Yona Bay 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.
Yona Bay is 24 km (15 miles) from the city of Okinawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Okinawa. Okinawa has rooms for a wide range of budgets as well as car hire and transport links.
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