Surf Forecasts:
Aja surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 12AM (local time) - 4.5ft (1.4m), 10s period, W swell with offshore winds.
- Most powerful swell: Monday 31 Aug, 9PM (local time) - 11ft (3.5m), 9s period, E swell with 1,827 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 12AM (local time) - 4.5ft (1.4m), 10s period with W swell.
Best Forecast Surf Conditions for Aja this week:
The surf forecast for Aja over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 12AM. The primary swell is predicted to be 1.4m and 10s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Aja in the next 16 days are 3.5m 9s and forecast to arrive on Monday (Aug 31) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Tuesday (Sep 01) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 28th Aug) | 4.5ft (1.4m) 10s |
| Best Surf | 12AM (Fri 28th Aug) | 4.5ft (1.4m) 10s |
| Most Powerful | 9PM (Mon 31st Aug) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
G’day, it’s Rusty here.
Let’s be straight with you. Looking at Aja over this whole 16-day stretch, we’ve got a classic run of onshore winds and messy local energy, and the surf window is looking pretty grim for the most part. The first couple of days aren’t worth paddling out for, and the pattern stays blown out and lumpy for a long while. There’s a big pulse of energy around Monday the 31st, but it’s coming with strong cross-shore winds that will chop it all up. The best we can hope for is a few small, clean windows here and there, but nothing magical.
Starting off, Thursday the 27th, we have a quick look at Aja with a storm threat and a moderate breeze. There’s some swell in the water – 6ft of west swell – but with that cross-off wind and questionable tide, it’s not really going to come together. The energy is moderate (733), but the conditions are marginal, so it’s a pass.
Friday the 28th, it’s a bit cleaner in the morning with a fresh offshore from the southeast, but the swell is dropping fast to 3ft. It’s surfable but very ordinary. The afternoon gets even smaller, down to 2ft. Nothing to get excited about.
Then we hit a real flat spell. Saturday the 29th through to Sunday the 30th, the swell all but disappears, and the energy readings are weak (73 and 0). It’s a total write-off, and the winds are cross-shore anyway.
Monday the 31st, things get interesting but not in a good way. We have a strong pulse of east swell coming in at 8ft, with strong energy (1255), but it’s accompanied by a strong cross-shore breeze and a risk of thunderstorms. The surf will be big and messy, with lumpy cross-chop. That’s not a surfing day, that’s a day to watch from the shore. This is for the experts only, and even then, it’s not going to be pretty.
Tuesday, September 1st, it’s even worse. The wind is cranking from the north at 37 mph, which is a near gale. The swell is still overhead at 7ft, but it’s blown out and chaotic. Forget it. The energy is still strong (699), but the waves are junk.
The rest of that first week is more of the same. Wednesday and Thursday have some moderate swell (around 6ft to 7ft), but the wind stays onshore or cross-onshore, chopping everything up. The energy is moderate (657 to 918), but it’s not translating into clean surf.
Friday, September 4th, the swell backs off, but the wind is still cross-onshore. The whole thing is just poor. The weekend after that is similar – small, weak, and wind-blown, with energy readings dropping below 400.
Now, there is a glimmer. From Monday, September 7th, the wind starts to ease. The swell is still there, between 5ft and 7ft, and while the mornings are still a bit dicey, we see the wind shifting more to the northwest and easing to a light breeze by the Tuesday and Wednesday. It might be a bit more lined up, but it’s still not a clean day.
The real bright spot is on Friday, September 11th. It’s a long way off, so don’t bank on it, but the morning looks promising. We have a light east-northeast cross-offshore breeze, which will groom the faces, and a small but clean 4ft northwest swell. The energy is weak (198), but the conditions are clean. It’s a small-wave day for the log or a fun groveler, but it’s the best we’ve got. The afternoon stays clean but drops off.
Given that this is the only real window of clean conditions in the whole forecast, I’d say that Friday the 11th is your standout. It won’t be big, but it’ll be clean. The rest of the period is a mix of flat spells and blown-out junkyard surf. The water temp is 84°F, which is about average for this time of year, so a rashie is enough.
This place isn't always this bad, so don't lose faith. Forecasts change, and we might get a better window soon. But for now, keep your board in the car and your expectations low.
Stay stoked.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 29°C on Fri morning, min 27°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 36mm), heaviest during Sun night. Warm (max 28°C on Sun night, min 27°C on Sun night). Mainly fresh winds. | ||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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) | W 10 | W 10 | W 9 | W 9 | E 13 | E 13 | E 12 | E 12 | ENE 12 | E 10 | E 10 | E 9 | ESE 9 | ESE 8 | E 14 | ENE 10 | E 11 | E 10 | W 11 |
Wave Graph | |||||||||||||||||||
400 | 239 | 106 | 60 | 55 | 53 | 47 | 45 | 79 | 1198 | 1375 | 1464 | 0 | 0 | 15 | 567 | 496 | 400 | 9 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-on | cross-off | cross-off | cross | cross | on | cross-on | cross-on |
High Tide | 6:53AM2.17m | 7:46PM2.11m | 7:28AM2.21m | 8:10PM2.14m | 8:04AM2.20m | 8:34PM2.16m | 8:43AM2.14m | 9:00PM2.15m | 9:24AM2.04m | 9:29PM2.12m | 10:10AM1.91m | 10:00PM2.06m | |||||||
Low Tide | 1:05AM0.83m | 1:26PM0.31m | 1:36AM0.70m | 1:54PM0.31m | 2:08AM0.59m | 2:22PM0.38m | 2:42AM0.50m | 2:52PM0.49m | 3:19AM0.46m | 3:23PM0.65m | 3:59AM0.47m | 3:56PM0.84m | |||||||
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
6:54 | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:47 | — | |
mm | 1 | — | — | — | — | — | — | — | — | 9 | 6 | 3 | 2 | 3 | 2 | 8 | 1 | 2 | 2 |
Temp °C | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 31 | 31 | 30 | 29 | 31 | 30 | 29 | 29 | 28 | 28 | 32 | 33 | 33 | 28 | 28 | 30 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | SSW 9 | SSW 9 | SSW 9 | S 9 | SSW 8 | SSW 8 | SSW 8 | S 10 | SSW 10 | S 10 | S 10 | S 10 | ENE 10 | E 11 | E 10 | ESE 10 |
400 | 239 | 106 | 101 | 106 | 94 | 81 | 101 | 80 | 57 | 52 | 72 | 55 | 165 | 371 | 567 | 496 | 400 | 300 | |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | SW 9 | W 9 | W 8 | E 13 | SW 8 | SE 11 | ENE 12 | SW 9 | SW 10 | SW 9 | SW 10 | SW 10 | E 14 | E 14 | — | NNW 8 | W 11 |
91 | 112 | 88 | 60 | 19 | 53 | 55 | 43 | 78 | 13 | 15 | 14 | 16 | 15 | 4 | 15 | — | 6 | 9 | |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | S 7 | E 13 | E 13 | W 7 | E 12 | E 12 | ENE 12 | — | — | — | S 10 | SW 10 | E 14 | — | — | — | NNW 9 |
26 | 44 | 17 | 32 | 55 | 9 | 47 | 45 | 79 | — | — | — | 51 | 15 | 15 | — | — | — | 7 | |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 6 | ESE 6 | ESE 6 | SE 7 | SE 7 | ESE 7 | ESE 8 | ESE 10 | E 10 | E 10 | E 9 | ESE 9 | ESE 8 | ESE 8 | SSE 10 | S 10 | S 9 | SSW 10 |
156 | 151 | 128 | 265 | 331 | 247 | 153 | 238 | 778 | 1198 | 1375 | 1464 | 1317 | 1000 | 427 | 1339 | 1290 | 971 | 917 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 607 | 0 | 590 | 813 | 590 | 706 | 813 | 14 | 16 | 673 | 607 | 598 | 673 | 598 | 1373 | 1269 | 755 | 39 | 10 |
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.











