Surf Forecasts:
Aja surf forecast from 5 Sep 2026:
- Most powerful swell: Sunday 6 Sep, 9PM (local time) - 7ft (2.1m), 7s period, N swell with 470 kJ wave energy.
Best Forecast Surf Conditions for Aja this week:
The most powerful waves expected at Aja in the next 16 days are 2.1m 7s and forecast to arrive on Sunday (Sep 06) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 10s period and expected on Saturday (Sep 12) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Sun 6th Sep) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Righto, gather 'round. Rusty here, and I've had a good look at what's on the table for Aja over the next couple of weeks. Straight up, it’s a pretty flat and quiet outlook for most of it. There’s a whole lot of nothing happening, especially to start.
The first week is a write-off for any proper surfing. We've got a few days of small, messy swell mixing with strong, onshore winds that just trash the surface. You're looking at wave energy barely cracking 250 (moderate) at best, but it's all junk. Tuesday the 8th sees a bit of a bump, but with a fresh cross-onshore wind, it’s just a lumpy mess. Honestly, it’s more interesting for kite surfing than paddling out for the first few days. This is a blank run, and for this area, it’s not that unusual when the trade winds lock in.
Now, there is a glimmer of hope as we get into the second week. The main standout, and really the only one worth getting excited about, is Aja itself. This is a reef break, and it’s inconsistent, so you need a bit of patience. But towards the end of the week starting Monday the 15th, things start to line up. On Tuesday the 15th, we see a solid pulse of 4ft to 5ft swell coming from the east, with a period of 8 to 9 seconds. The combined wave energy hits a solid 321 (moderate), and the wind swings offshore or cross-offshore, which is a massive positive. It'll be clean. The swell direction (E) matches the optimum direction (N) closely enough that the reef should focus it nicely.
The water temp is about average for this time of year, nothing wild.
The other small window is on Thursday the 17th, with clean conditions and a tiny bit of energy (111), but the swell is small at 2ft. It's surfable, but nothing to write home about compared to that Tuesday the 15th. So mark your calendar for Monday the 15th through Wednesday the 17th. The Tuesday looks best, but remember, with crowds being “sometimes” at Aja, and it being a quality reef set-up, you might have a few others with the same idea.
After that, it fades right back out into tiny, weak dribble. Get it while you can.
- Rusty
Short Range ForecastModerate rain (total 18mm), heaviest on Sat night. Warm (max 28°C on Sat night, min 27°C on Sat night). Mainly strong winds. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Wed night. Warm (max 29°C on Thu morning, min 27°C on Tue night). Mainly fresh winds. | ||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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) | WNW 7 | NW 8 | NNE 6 | N 8 | NNW 7 | NNW 7 | NNW 7 | NNW 9 | N 9 | NNW 8 | N 8 | N 7 | N 7 | NNW 7 | N 10 | N 9 | N 9 | N 9 | N 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 147 | 15 | 246 | 413 | 284 | 192 | 158 | 268 | 210 | 192 | 193 | 159 | 126 | 69 | 216 | 127 | 106 | 96 | 46 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:04AM1.81m | 4:19PM1.70m | 2:57AM1.84m | 5:16PM1.85m | 4:19AM1.98m | 5:57PM1.98m | 5:20AM2.12m | 6:31PM2.09m | 6:09AM2.22m | 7:02PM2.16m | 6:54AM2.27m | 7:30PM2.19m | |||||||
Low Tide | 8:52AM0.63m | 9:24PM1.37m | 10:15AM0.52m | 10:44PM1.22m | 11:14AM0.39m | 11:36PM1.03m | 12:02PM0.30m | 00:19AM0.84m | 12:42PM0.26m | 00:57AM0.67m | 1:18PM0.28m | 1:33AM0.54m | |||||||
 |  | |  |  | | | | | |  | |  | | |  | | | | |
 | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | 6:45 | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — |
mm | 10 | 1 | 2 | — | — | 1 | 1 | 2 | 1 | — | 1 | 1 | 3 | 2 | — | — | 1 | 2 | — |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 28 | 27 | 29 | 29 | 28 | 28 | 28 | 27 |
Feels °C | 34 | 29 | 28 | 28 | 28 | 29 | 28 | 28 | 26 | 27 | 28 | 29 | 29 | 31 | 31 | 30 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | SSW 8 | S 9 | E 9 | S 9 | SSW 8 | S 9 | NNW 9 | WNW 7 | NNW 8 | ENE 9 | ENE 7 | S 7 | NNW 7 | N 10 | N 9 | N 9 | N 9 | SSE 12 |
| kJ | 147 | 101 | 78 | 74 | 39 | 27 | 25 | 268 | 38 | 192 | 26 | 10 | 9 | 69 | 216 | 127 | 106 | 96 | 153 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | NW 8 | E 9 | S 9 | E 8 | ESE 8 | NE 10 | NE 10 | S 8 | E 9 | S 7 | S 8 | SE 10 | E 9 | ESE 9 | ESE 9 | ESE 9 | S 7 | N 8 |
| kJ | 114 | 14 | 41 | 25 | 36 | 23 | 25 | 25 | 20 | 39 | 9 | 10 | 15 | 25 | 32 | 31 | 61 | 9 | 46 |
Swell 3 Height (m) Direction Period (s) | S 8 | E 9 | E 13 | SW 8 | E 13 | NE 11 | ESE 9 | E 9 | NE 10 | S 8 | SE 10 | E 9 | E 9 | S 7 | S 7 | S 7 | S 7 | E 15 | E 15 |
| kJ | 33 | 15 | 4 | 18 | 3 | 30 | 16 | 14 | 24 | 10 | 16 | 15 | 6 | 9 | 9 | 10 | 9 | 39 | 38 |
Wind waves Height (m) Direction Period (s) | E 4 | NE 6 | NNE 6 | N 8 | NNW 7 | NNW 7 | NNW 7 | — | N 9 | NE 8 | N 8 | N 7 | N 7 | E 4 | ESE 4 | ESE 5 | ESE 5 | ESE 8 | ESE 8 |
| kJ | 37 | 206 | 246 | 413 | 284 | 192 | 158 | — | 210 | 84 | 193 | 159 | 126 | 10 | 14 | 33 | 51 | 274 | 356 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 719 | 755 | 719 | 719 | 673 | 788 | 16 | 16 | 673 | 607 | 673 | 673 | 49 | 17 | 17 | 17 | 673 | 673 | 673 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aja 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 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.
Nearest