Surf Forecasts:
Aja surf forecast from 11 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 6AM (local time) - 3.5ft (1.1m), 9s period, E swell with offshore winds.
- Most powerful swell: Monday 14 Sep, 3AM (local time) - 4.5ft (1.3m), 8s period, E swell with 208 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 6PM (local time) - 2.5ft (0.7m), 8s period with NNW 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 (Sep 11) at 6PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.3m and 15s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Aja in the next 16 days are 1.3m 8s and forecast to arrive on Monday (Sep 14) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Sunday (Sep 13) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 11th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 6AM (Tue 15th Sep) | 3.5ft (1.1m) 9s |
| Most Powerful | 3AM (Mon 14th Sep) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight up about Aja. We’re looking at a pretty lean run over the next couple of weeks, and honestly, there’s no real standout session on the cards. The pick of a very average bunch is going to be Friday morning, September 11th. The swell is small at 2.6ft from the NNW, but it’s clean, with a gentle cross-offshore breeze. The water’s sitting at 83.3°, which is pretty much bang on average for this time of year, so no surprises there. The wave energy is weak (94), so don’t expect much push. Thursday morning, September 17th, offers a slightly better energy reading (106) with 1.6ft from the East, and it’s clean again, but it’s still tiny. Sunday morning, September 13th is a total write-off with building wind and messy conditions.
After that first week, it goes downhill fast. From Saturday the 19th onwards, we see a big jump in size—10ft+ on Sunday the 20th—but it’s all cross-shore or onshore gale-force wind. The energy numbers get huge (over 4000 at times), but the wind destroys any chance of quality. This setup looks way more interesting for kite surfing than paddle surfing. By the time we get to the final week, the swell drops back to nothing, and the wind remains poor. There are long gaps of several days here where there’s truly nothing worth paddling out for. The break is inconsistent at the best of times, and forecasts can change, but based on what we’ve got, this is a blank run that feels pretty normal for Aja.
Keep it on the radar for a better day, but for now, don’t get your hopes up.
Short Range ForecastModerate rain (total 16mm), heaviest on Sun afternoon. Warm (max 29°C on Fri morning, min 27°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 20mm), heaviest during Mon afternoon. Warm (max 28°C on Tue morning, min 25°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | NNW 8 | NNW 8 | N 8 | E 14 | E 14 | E 14 | E 14 | E 6 | E 13 | E 13 | E 8 | E 13 | E 13 | E 12 | NNW 6 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 94 | 67 | 41 | 61 | 64 | 62 | 61 | 128 | 56 | 55 | 177 | 54 | 51 | 47 | 4 | 61 | 58 | 100 | 91 | 84 | 84 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 7:30PM2.19m | 7:35AM2.25m | 7:57PM2.20m | 8:14AM2.19m | 8:22PM2.18m | 8:52AM2.08m | 8:45PM2.14m | 9:29AM1.95m | 9:09PM2.08m | 10:07AM1.80m | 9:34PM2.00m | 10:51AM1.66m | 10:01PM1.89m | ||||||||
Low Tide | 1:18PM0.28m | 1:33AM0.54m | 1:50PM0.36m | 2:08AM0.45m | 2:20PM0.49m | 2:41AM0.41m | 2:47PM0.63m | 3:14AM0.42m | 3:13PM0.79m | 3:47AM0.48m | 3:39PM0.94m | 4:23AM0.58m | 4:06PM1.10m | ||||||||
 | |  |  | |  | | | | | | |  | | | | | | | | | |
 | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — |
 | — | 6:38 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — |
mm | 2 | 2 | 2 | — | — | — | — | 5 | 5 | 2 | 6 | 5 | — | 2 | 1 | 1 | 3 | — | — | 1 | — |
Temp °C | 29 | 29 | 28 | 28 | 29 | 27 | 29 | 28 | 27 | 27 | 26 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 29 | 27 |
Feels °C | 32 | 32 | 31 | 31 | 32 | 29 | 31 | 30 | 29 | 29 | 29 | 29 | 31 | 31 | 30 | 31 | 31 | 30 | 32 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | N 8 | SE 6 | N 7 | NNW 6 | E 14 | E 14 | E 13 | ESE 8 | E 8 | ESE 9 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 |
| kJ | 94 | 67 | 41 | 39 | 24 | 13 | 61 | 62 | 56 | 163 | 177 | 166 | 162 | 162 | 173 | 149 | 138 | 110 | 108 | 84 | 73 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | E 15 | N 7 | E 14 | E 14 | ESE 9 | S 6 | N 5 | E 13 | E 13 | E 13 | E 13 | E 12 | NNW 6 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 |
| kJ | 62 | 50 | 38 | 25 | 64 | 62 | 16 | 3 | 9 | 55 | 54 | 54 | 51 | 47 | 4 | 61 | 58 | 100 | 91 | 84 | 84 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | WNW 6 | E 14 | S 6 | S 7 | N 6 | SW 8 | S 6 | N 5 | SW 8 | N 4 | SSW 8 | SSW 8 | NNW 4 | NNW 5 | NW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 |
| kJ | 9 | 8 | 4 | 61 | 7 | 8 | 7 | 3 | 3 | 5 | 3 | 3 | 7 | 7 | 1 | 5 | 10 | 16 | 15 | 16 | 14 |
Wind waves Height (m) Direction Period (s) | SE 4 | — | SE 6 | — | SE 6 | ESE 5 | E 6 | E 6 | ESE 8 | — | N 5 | — | — | — | — | — | — | — | — | — | ESE 4 |
| kJ | 6 | — | 52 | — | 32 | 35 | 61 | 128 | 151 | — | 2 | — | — | — | — | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 15 | 15 | 15 | 15 | 15 | 598 | 598 | 15 | 0 | 0 | 17 | 17 | 0 | 0 | 0 | 0 | 15 | 0 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.
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