
Surf Forecasts:
Aja surf forecast from 8 Aug 2026:
- Most powerful swell: Monday 10 Aug, 12AM (local time) - 6ft (1.8m), 12s period, W swell with 909 kJ wave energy.
Best Forecast Surf Conditions for Aja this week:
The most powerful waves expected at Aja in the next 16 days are 1.8m 12s and forecast to arrive on Monday (Aug 10) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 7.0m 12s period and expected on Saturday (Aug 08) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12AM (Mon 10th Aug) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
G'day, Rusty here. Look, I've got to be straight with you – this Aja outlook is a tough one. We're looking at a pretty barren 16-day window, with nothing on offer that I'd really want to paddle out for. The whole period is a write-off for decent surf.
The first real chance to even talk about waves comes on Monday the 10th of August, but even then it's a struggle. We've got a moderate energy swell (919) coming in, but it's messy. The water is a warm 86°, which is about normal for this time of year, but that's where the good news ends.
The main issue is the wind. For most of the period, we're dealing with strong to gale-force cross-offshore winds, especially early on. This creates clean faces but with that much wind, it's just not enjoyable. By Monday the 10th, the wind drops to a fresh breeze, but the swell is still only a marginal 5ft from the West, with a long period of 12 seconds. That long period means the sets will have good energy, but at a beach break like Aja, it's likely to break too straight and close out. It's a reef break, so that helps, but the conditions are still only marginal.
The rest of the week is a slow decline. The swell drops, the wind shifts onshore, and the energy plummets. By the 14th of August, we're looking at tiny 1ft waves with a combined energy of just 32. It's not worth getting wet.
The second week doesn't offer any hope. From the 15th of August onwards, the swell is tiny, and the energy readings are consistently in the double digits. There's a faint glimmer on the 16th with a "surfable waves" comment, but it's only 2ft and a 10-second period, which is just not enough to get excited about. The 22nd of August shows a tiny 1.0ft, but that's it. The rest is flat.
Honestly, for this stretch, there's nothing to recommend. The best we can say is that the reef at Aja might clean up a tiny bit of that 5ft swell on Monday morning, but with the wind and the marginal rating, it's a hard pass. The setup is more interesting for a kite surfer than a paddle surfer at this point, I reckon. Keep an eye on the forecasts, things can change, but for now, I'd find something else to do.
Rusty.
Short Range ForecastHeavy rain (total 59mm), heaviest during Sat morning. Warm (max 29°C on Sun afternoon, min 28°C on Sat morning). Winds decreasing (gales from the S on Sat morning, moderate winds from the SSE by Mon night). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Wed morning. Warm (max 30°C on Tue morning, min 28°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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) | ENE 11 | E 10 | E 10 | E 10 | E 10 | W 12 | W 12 | E 13 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | ENE 10 | E 10 | E 10 | E 6 |
Wave Graph | |||||||||||||||||||||
161 | 108 | 71 | 68 | 65 | 909 | 617 | 342 | 248 | 229 | 175 | 121 | 86 | 83 | 52 | 50 | 49 | 30 | 30 | 30 | 11 | |
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 | cross-off | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | off |
High Tide | 4:11PM1.67m | 2:56AM1.90m | 5:25PM1.82m | 4:16AM2.02m | 6:15PM1.96m | 5:19AM2.15m | 6:57PM2.07m | 6:13AM2.27m | 7:34PM2.14m | 7:02AM2.33m | 8:09PM2.18m | 7:47AM2.32m | 8:40PM2.18m | ||||||||
Low Tide | 9:06PM1.34m | 10:20AM0.47m | 10:37PM1.28m | 11:23AM0.31m | 11:40PM1.16m | 12:16PM0.18m | 00:29AM1.03m | 1:02PM0.11m | 1:13AM0.89m | 1:43PM0.11m | 1:55AM0.78m | 2:21PM0.18m | 2:35AM0.69m | ||||||||
5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | |
— | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | |
mm | 24 | 4 | 7 | 6 | 4 | 5 | 2 | 1 | 6 | 1 | 4 | 6 | 4 | — | — | — | — | — | 4 | 1 | 11 |
Temp °C | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 30 | 29 | 28 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 28 | 27 |
Feels °C | 22 | 22 | 22 | 26 | 28 | 27 | 30 | 30 | 30 | 32 | 31 | 31 | 32 | 32 | 34 | 32 | 32 | 32 | 32 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | E 10 | E 10 | E 10 | WSW 12 | W 12 | W 12 | SW 11 | SW 11 | S 10 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | S 9 | S 9 | SSW 9 | S 8 | SW 8 | S 8 |
161 | 108 | 71 | 68 | 1930 | 909 | 617 | 471 | 375 | 932 | 590 | 557 | 487 | 385 | 249 | 123 | 97 | 188 | 91 | 69 | 68 | |
Swell 2 Height (m) Direction Period (s) | E 16 | E 15 | E 15 | E 15 | E 10 | E 14 | E 14 | W 11 | E 12 | E 12 | SW 10 | SW 10 | E 11 | E 11 | E 10 | SW 8 | SW 8 | S 8 | SW 8 | S 9 | SW 8 |
5 | 17 | 17 | 17 | 65 | 242 | 302 | 224 | 248 | 229 | 328 | 226 | 86 | 83 | 52 | 84 | 80 | 35 | 70 | 71 | 54 | |
Swell 3 Height (m) Direction Period (s) | — | — | ENE 15 | ENE 15 | E 15 | — | — | E 13 | W 10 | SW 11 | E 12 | E 11 | N 9 | W 7 | WNW 6 | E 10 | E 10 | ENE 10 | E 10 | E 10 | E 6 |
— | — | 43 | 43 | 38 | — | — | 342 | 125 | 168 | 175 | 121 | 6 | 8 | 12 | 50 | 49 | 30 | 30 | 30 | 11 | |
Wind waves Height (m) Direction Period (s) | SSW 11 | SSW 12 | SSW 12 | SSW 12 | S 10 | S 10 | S 10 | S 10 | S 10 | — | S 10 | SSE 10 | W 7 | WSW 9 | — | NW 7 | NW 7 | — | NW 7 | NW 4 | — |
8208 | 13296 | 8796 | 7478 | 2849 | 2377 | 2074 | 1353 | 996 | — | 509 | 335 | 8 | 362 | — | 14 | 12 | — | 13 | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 755 | 719 | 610 | 607 | 609 | 590 | 613 | 598 | 590 | 613 | 590 | 598 | 10 | 10 | 16 | 16 | 17 | 16 | 17 | 16 | 14 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Aja Surf forecast
The above surf forecast table for Aja provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aja can be found by selecting the local surf guide option on the grey menu. Our Aja 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 (Aja) 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 Aja 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.
Aja is 4 km (2 miles) from the city of Tomigusuku. If you plan a holiday in Okinawa, look for hotels and other accommodation in Tomigusuku. Tomigusuku has rooms for a wide range of budgets as well as car hire and transport links.











