
Surf Forecasts:
Corners surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 12AM (local time) - 3ft (0.9m), 8s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 9PM (local time) - 3ft (0.9m), 9s period, SSW swell with 145 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 12AM (local time) - 3ft (0.9m), 8s period with S swell.
Best Forecast Surf Conditions for Corners this week:
The surf forecast for Corners over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 12AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Corners in the next 16 days are 0.9m 9s and forecast to arrive on Sunday (Aug 16) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Wednesday (Aug 19) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 13th Aug) | 3ft (0.9m) 8s |
| Best Surf | 12AM (Thu 13th Aug) | 3ft (0.9m) 8s |
| Most Powerful | 9PM (Sun 16th Aug) | 3ft (0.9m) 9s |
Table - best surf conditions forecast for Corners over the next 16 days.
The Lowdown
Alright, let’s get into it. Rusty here.
First up, we’re looking at Corners (reef break). The forecast starts with a bit of a wait. The first real surf shows up on Wednesday afternoon, the 12th of August. We’ve got a 4ft SSW swell ticking over at 8 seconds, with onshore winds from the E. It’s clean enough, but it’s just a glimpse of what’s to come. The combined energy is moderate at 217.
Thursday the 13th is a bit of a mixed bag. The morning has 3ft of S swell, 8 seconds, with a cross-offshore E breeze – clean, but pretty ordinary. The afternoon glass-off is a treat, though. The wind dies right out, going glassy, and the swell switches to 3ft from the SW. It’s not big, but it’s clean and the water temp is sitting at 84°, which is pretty much normal for this time of year.
Friday the 14th and Saturday the 15th are weak. We’re looking at 2ft and 2ft of SW swell, with a mix of light cross-shore winds. The energy drops right off – Saturday morning is only 89. It’s surfable but barely. A real lull.
Sunday the 16th picks up slightly to 3ft of SSW swell, 9 seconds, and the ESE wind is clean, but it’s still not exciting. By Monday the 17th and Tuesday the 18th, the wind picks up to 12–16 mph from the ESE, the swell drops to 2ft, and the energy is minimal. It’s a poor stretch of days.
Now, the real highlight comes at the end of the week. Friday the 21st of August, we see a pulse of 6ft SSE swell, but the wind is cross-onshore from the SSW, so it’s messy. The energy is strong at 492, but it’s not clean enough to call it a standout.
The standout is Saturday the 22nd of August. Morning session: 5ft of SSE swell, 8 seconds, with a light offshore ENE breeze at 3 mph. The water is clean, the combined energy is strong at 298, and the conditions are set for a great session. Corners is a reef break, exposed to the SW, and this SSE swell is a solid fit. It’s a fair bit of size, so it’s more for the advanced crew, but the wind is perfect. The crowds are often here, so expect company.
After Saturday, the swell drops back through Sunday and Monday, with increasing wind. By Monday the 24th, we’ve got a dangerous storm warning – 68 mph winds from the W. That’s not surfable. The rest of the run into the 27th is mostly messy cross-onshore winds and small swell.
The final standout is Thursday the 27th of August. Morning and afternoon both show 3ft to 4ft of SSW swell, with a period of 11 seconds, and glassy winds. The energy is moderate at 246 and 293. The wind is dead calm, the water is clean, and the swell has a bit of direction. It’s a classic glassy day at Corners.
So, the two best windows are Saturday the 22nd with the offshore and size, and Thursday the 27th with the glass and clean lines. The rest is a mix of small and windy.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Wed afternoon. Warm (max 29°C on Thu morning, min 25°C on Wed afternoon). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Sat afternoon. Warm (max 29°C on Sat afternoon, min 27°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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) | SSW 8 | S 8 | S 8 | SW 8 | S 9 | SW 9 | SW 8 | S 8 | SW 8 | SSW 9 | SSW 8 | SSW 9 | SSW 8 | SSW 9 | SSW 9 | SW 9 | SW 9 | SW 9 | SSW 8 | SSW 9 |
Wave Graph | ||||||||||||||||||||
217 | 112 | 112 | 80 | 73 | 77 | 67 | 63 | 46 | 49 | 123 | 132 | 84 | 138 | 99 | 77 | 83 | 83 | 61 | 53 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | glassy | glassy | cross-on | cross | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 7:43PM2.07m | 7:14AM2.24m | 8:13PM2.13m | 7:57AM2.27m | 8:42PM2.15m | 8:37AM2.24m | 9:11PM2.15m | 9:15AM2.15m | 9:39PM2.13m | 9:54AM2.02m | 10:07PM2.08m | 10:34AM1.85m | 10:36PM2.01m | |||||||
Low Tide | 1:25AM0.82m | 1:52PM0.15m | 2:03AM0.69m | 2:27PM0.21m | 2:39AM0.60m | 3:00PM0.32m | 3:15AM0.54m | 3:31PM0.46m | 3:52AM0.54m | 4:00PM0.62m | 4:31AM0.58m | 4:28PM0.80m | ||||||||
— | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | |
mm | 6 | 3 | — | — | 2 | 2 | 3 | 1 | — | 2 | 1 | 1 | — | 3 | — | — | — | — | — | — |
Temp °C | 26 | 26 | 29 | 29 | 28 | 28 | 28 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 |
Feels °C | 30 | 30 | 34 | 34 | 33 | 31 | 31 | 32 | 34 | 34 | 32 | 32 | 31 | 29 | 30 | 30 | 29 | 30 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | S 8 | S 8 | SW 8 | SW 8 | SW 9 | SW 8 | S 8 | SW 8 | SSW 9 | SSW 8 | SSW 9 | SSW 8 | SSW 9 | SSW 9 | SW 9 | SW 9 | SW 9 | SSW 8 | SSW 9 |
217 | 112 | 112 | 80 | 69 | 77 | 67 | 63 | 46 | 49 | 123 | 132 | 84 | 138 | 99 | 77 | 83 | 83 | 61 | 53 | |
Swell 2 Height (m) Direction Period (s) | E 11 | SW 9 | SW 8 | S 8 | S 9 | S 8 | S 8 | SW 8 | S 8 | S 8 | S 8 | E 10 | S 8 | E 10 | E 10 | E 10 | E 10 | E 10 | S 7 | ENE 10 |
83 | 64 | 66 | 66 | 73 | 65 | 63 | 30 | 43 | 34 | 50 | 51 | 49 | 51 | 71 | 70 | 48 | 48 | 9 | 33 | |
Swell 3 Height (m) Direction Period (s) | ESE 6 | E 10 | E 10 | E 10 | ENE 10 | E 10 | E 10 | E 9 | E 11 | E 11 | E 10 | S 8 | E 10 | S 8 | S 8 | S 7 | S 7 | S 7 | SSE 10 | S 7 |
12 | 51 | 73 | 51 | 33 | 31 | 30 | 15 | 61 | 59 | 52 | 28 | 51 | 19 | 18 | 17 | 10 | 9 | 10 | 16 | |
Wind waves Height (m) Direction Period (s) | E 6 | SE 3 | — | — | — | — | NNW 3 | NW 4 | — | — | — | — | E 5 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | ESE 9 | E 6 |
17 | 1 | — | — | — | — | 1 | 3 | — | — | — | — | 13 | 40 | 51 | 48 | 48 | 36 | 147 | 96 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 32 | 26 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 0 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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Information about the Corners Surf forecast
The above surf forecast table for Corners provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Corners can be found by selecting the local surf guide option on the grey menu. Our Corners 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 (Corners) 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 Corners 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.
Corners is 5 km (3 miles) from Misato. If you plan a holiday in Okinawa, look for hotels and other accommodation in Misato. Misato has rooms for a wide range of budgets as well as car hire and transport links.











