Surf Forecasts:
Aja surf forecast from 1 Sep 2026:
- Most powerful swell: Wednesday 2 Sep, 9PM (local time) - 10ft (3.0m), 11s period, E swell with 2,301 kJ wave energy.
Best Forecast Surf Conditions for Aja this week:
The most powerful waves expected at Aja in the next 16 days are 3.0m 11s and forecast to arrive on Wednesday (Sep 02) 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 2.5m 10s period and expected on Wednesday (Sep 02) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Wed 2nd Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Alright, let’s get into it. The next couple of weeks at Aja are looking pretty grim for the most part, with a long stretch of messy, blown-out conditions. The first real glimmer of hope doesn’t show up until the second week, so we’ve got a bit of a wait on our hands.
Right out of the gate, the first few days are a write-off. Wednesday the 2nd has tiny 1ft easterly swell with a moderate cross-offshore breeze, but it’s just too weak to bother with. Thursday and Friday bring a bit more size, around 3ft to 6ft, but the wind is onshore or cross-onshore, and the water’s a mess. The energy is weak to moderate – readings between 69 and 768 – but it’s all poor quality. This stretch runs straight through the weekend, with Saturday the 5th and Sunday the 6th still seeing 4ft to 4ft of northerly swell, but the wind is cross-onshore and it’s choppy and lumpy. Not worth paddling out. The following week, from Monday the 7th through to Wednesday the 10th, is similar: onshore winds, fresh breezes, and poor surf. The swell sticks around 5ft to 8ft, and on Thursday the 10th we get a 8ft NNW swell, but the wind is still cross-onshore. It’s just not clean.
Now, the standout – and it’s the only real window of opportunity – is Friday the 11th of September. The wind finally swings around to a light east-northeasterly, giving us a clean, cross-offshore breeze. The swell is 5ft from the NNW, with a 8-second period, and the combined energy is moderate at 394. It’s not huge, but it’s clean, and after all that junk, it’ll feel like a gift. The morning looks best. Saturday the 12th has a bit of a spike, with 10ft easterly swell and a massive energy reading of 1685, but the wind is still cross-offshore and there’s a risk of thunderstorms. The tide could be a factor, and that size is only for the experienced crew. After that, it drops off again Sunday the 13th with tiny 2ft surf, and then we’re back into onshore winds for the rest of the forecast.
So, the call: stick with Friday the 11th. Aim for the morning session at Aja. The swell is manageable, the wind is kind, and it’s the cleanest we’ll see all outlook. The rest is a waiting game.
Rusty
Short Range ForecastModerate rain (total 13mm), heaviest on Thu morning. Warm (max 29°C on Wed morning, min 26°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sun afternoon. Warm (max 29°C on Sat afternoon, min 26°C on Sat night). Mainly fresh winds. | ||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 13 | E 12 | E 12 | E 11 | N 6 | E 10 | E 10 | N 8 | N 8 | N 8 | N 9 | N 9 | N 9 | N 10 | N 10 | N 10 | WNW 7 | WNW 7 | E 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 14 | 27 | 26 | 1583 | 69 | 682 | 234 | 157 | 127 | 135 | 241 | 287 | 293 | 326 | 220 | 183 | 280 | 228 | 229 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on |
High Tide | 9:29PM2.12m | 10:10AM1.91m | 10:00PM2.06m | 11:07AM1.76m | 10:39PM1.98m | 12:25PM1.62m | 11:32PM1.88m | 2:30PM1.59m | 1:04AM1.81m | 4:19PM1.70m | 2:57AM1.84m | 5:16PM1.85m | |||||||
Low Tide | 3:59AM0.47m | 3:56PM0.84m | 4:47AM0.52m | 4:34PM1.04m | 5:48AM0.59m | 5:25PM1.24m | 7:12AM0.66m | 7:04PM1.38m | 8:52AM0.63m | 9:24PM1.37m | 10:15AM0.52m | 10:44PM1.22m | |||||||
 |  | |  |  | |  | | |  |  | | | |  | | | | | |
 | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — |
 | 6:50 | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — |
mm | — | — | — | 1 | 6 | 4 | 2 | — | — | — | — | — | — | — | 2 | — | 1 | 2 | — |
Temp °C | 28 | 29 | 29 | 27 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 29 | 30 | 30 | 28 | 29 | 29 | 30 | 31 | 31 | 31 | 29 | 31 | 27 | 28 | 28 | 28 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SSW 10 | SSW 10 | SW 10 | ESE 10 | E 10 | SSW 11 | N 8 | N 8 | SSW 9 | N 9 | SSW 8 | N 9 | N 10 | N 10 | NW 7 | N 8 | E 8 | W 7 |
| kJ | 79 | 175 | 175 | 145 | 769 | 682 | 323 | 157 | 127 | 222 | 241 | 151 | 293 | 326 | 220 | 128 | 71 | 35 | 120 |
Swell 2 Height (m) Direction Period (s) | S 8 | E 12 | E 12 | SW 10 | SSW 11 | SW 12 | E 10 | SW 10 | S 9 | N 8 | SSW 9 | ESE 9 | SSW 8 | SSW 8 | SSW 8 | N 10 | ESE 8 | N 9 | E 11 |
| kJ | 5 | 27 | 26 | 284 | 200 | 314 | 234 | 157 | 139 | 135 | 199 | 29 | 80 | 45 | 68 | 183 | 24 | 40 | 229 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 16 | — | — | — | S 8 | N 7 | E 9 | SW 10 | E 9 | ESE 8 | E 15 | ESE 9 | S 8 | ESE 9 | S 8 | S 8 | S 8 | N 9 |
| kJ | 14 | 5 | — | — | — | 6 | 94 | 87 | 115 | 59 | 19 | 4 | 29 | 34 | 27 | 32 | 20 | 20 | 39 |
Wind waves Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | E 11 | N 6 | N 7 | — | — | NNW 8 | — | N 3 | N 9 | NNW 10 | — | NW 6 | — | WNW 7 | WNW 7 | — |
| kJ | 1006 | 542 | 540 | 1583 | 69 | 86 | — | — | 65 | — | 1 | 287 | 157 | — | 39 | — | 280 | 228 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 598 | 16 | 16 | 607 | 17 | 609 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 788 | 17 | 788 | 673 | 607 |
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.
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