Surf Forecasts:
Aja surf forecast from 24 Aug 2026:
- Best quality surf: Friday 28 Aug, 9AM (local time) - 1ft (0.3m), 12s period, E swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 6PM (local time) - 15ft (4.5m), 15s period, E swell with 8,714 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 9AM (local time) - 1ft (0.3m), 12s period with E 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 9AM. The primary swell is predicted to be 0.3m and 12s period with a secondary swell of 0.1m and 15s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Aja in the next 16 days are 4.5m 15s and forecast to arrive on Tuesday (Aug 25) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 11s period and expected on Thursday (Aug 27) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Fri 28th Aug) | 1ft (0.3m) 12s |
| Best Surf | 9AM (Fri 28th Aug) | 1ft (0.3m) 12s |
| Most Powerful | 6PM (Tue 25th Aug) | 15ft (4.5m) 15s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Alright, let’s talk shop. Aja ain’t got much going on – it’s a reef break that’s inconsistent, so we already know the odds are stacked against us.
The first hint of anything is Monday afternoon, August 24. Tiny 2ft swell from ENE, 11-second period. The combined energy is weak (158). Wind is cross-offshore so it’s clean, but the surf is poor. Water’s about 83°, normal for this time of year. Not worth suiting up.
Tuesday 25th is a wash – no surf in the morning, and Tuesday afternoon gives you a messy 5ft from N with a 6-second period. Cross-on and lumpy. No thanks.
Wednesday 26th is dangerous. Morning sees a 13ft W swell with 37 mph near gale cross-onshore. Blown out, huge – experts only. Combined energy is sky-high at 4052. Afternoon drops to 1ft with a 14-second period, but crossed up. Not rideable.
Thursday 27th is clean but tiny – 2ft E swell, 13-second period, offshore winds. Energy low at 168. You’ll be sitting on your board watching.
Friday 28th is your best bet of the whole stretch. Morning has 1ft E swell, 12-second period, light offshore – clean. Energy only 50, though. Afternoon is 1ft with a 15-second period, 12 mph offshore – also clean. These are surfable but very ordinary. Might catch a knee-high wave if you’re lucky.
Saturday 29th and Sunday 30th stay tiny – 1 to 1ft, clean but weak. Not worth the paddle.
Monday 31st has no surf in the morning, and just 1ft in the afternoon. Still poor.
Tuesday 1 September, we finally get something. Morning brings 5ft from E with an 8-second period, cross-offshore and clean. Combined energy 284 – moderate. Still marginal, but this is the closest we get to a standout.
After that, it’s rough again. Wednesday 2 September has 7ft NE, 6-second period, cross-shore chop – poor. Thursday 3rd is 6ft from NNE, lumpy cross-on. Friday 4th has 6ft E at 11 seconds, but onshore – energy is strong (1349), but junk conditions.
Saturday 5 September is slightly better – 6ft N at 11 seconds, cross-shore with slight chop. Still only a 1/10.
The last few days, 6-8 September, have small to moderate swell but always with strong wind or cross-on conditions. Nothing clean.
Bottom line: there’s no good surf in the 16-day window. The only near-standout is Tuesday 1 September morning – 5ft, clean, cross-off – but it’s short-period and the break is inconsistent. Beginners, stay away. Even intermediates will be scratching for a wave. This spot rarely breaks, and this run proves it.
Forecasts can change, but right now it’s a dry spell.
Rusty
Short Range ForecastHeavy rain (total 81mm), heaviest during Wed night. Warm (max 29°C on Mon afternoon, min 26°C on Mon night). Winds increasing (light winds from the NE on Mon night, gales from the W by Tue night). | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Fri morning. Warm (max 29°C on Fri afternoon, min 27°C on Fri night). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the SSE by Fri afternoon). | |||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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 7 | ESE 17 | N 6 | E 14 | W 8 | ENE 14 | W 11 | E 13 | E 13 | E 12 | E 12 | E 15 | E 13 | E 13 | E 13 | ENE 12 | E 12 | E 12 | E 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 91 | 79 | 0 | 158 | 4569 | 2026 | 65 | 1829 | 86 | 82 | 26 | 25 | 38 | 90 | 31 | 53 | 119 | 44 | 44 | 22 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 6:09PM1.81m | 5:01AM1.88m | 6:36PM1.91m | 5:43AM2.00m | 7:00PM1.99m | 6:19AM2.10m | 7:23PM2.06m | 6:53AM2.17m | 7:46PM2.11m | 7:28AM2.21m | 8:10PM2.14m | 8:04AM2.20m | 8:34PM2.16m | |||||||
Low Tide | 11:30PM1.23m | 11:59AM0.54m | 00:05AM1.10m | 12:30PM0.43m | 00:35AM0.96m | 12:59PM0.35m | 1:05AM0.83m | 1:26PM0.31m | 1:36AM0.70m | 1:54PM0.31m | 2:08AM0.59m | 2:22PM0.38m | 2:42AM0.50m | |||||||
 |  |  | |  |  | | | |  | | | | | | | |  | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — |
mm | 1 | — | — | — | 23 | 7 | 10 | 39 | 1 | 1 | 1 | 3 | 1 | 4 | 2 | 3 | — | — | — | — |
Temp °C | 29 | 27 | 29 | 29 | 28 | 28 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 27 | 29 | 29 | 28 |
Feels °C | 31 | 31 | 30 | 29 | 25 | 23 | 22 | 23 | 24 | 26 | 28 | 30 | 31 | 31 | 30 | 29 | 28 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | ESE 17 | ESE 17 | ESE 17 | ESE 16 | E 14 | NNW 11 | E 11 | W 11 | E 13 | E 13 | SW 12 | E 12 | WSW 12 | SSW 10 | SSW 11 | SSW 10 | SSW 10 | S 9 | SSE 7 | S 10 |
| kJ | 1107 | 3691 | 9414 | 9261 | 4569 | 1194 | 57 | 1829 | 54 | 29 | 2307 | 25 | 207 | 867 | 649 | 367 | 296 | 106 | 111 | 70 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | NNE 11 | E 14 | ESE 8 | E 13 | E 18 | E 12 | E 15 | E 7 | E 13 | E 13 | E 13 | E 12 | SW 9 | SSW 8 | SW 10 |
| kJ | 99 | 64 | 50 | 27 | 27 | 698 | 35 | 23 | 86 | 6 | 26 | 4 | 35 | 31 | 31 | 53 | 47 | 62 | 101 | 49 |
Swell 3 Height (m) Direction Period (s) | ENE 11 | ENE 10 | — | — | — | E 12 | ENE 14 | E 13 | E 8 | E 13 | E 16 | ENE 15 | E 15 | E 13 | — | — | ENE 12 | E 12 | E 12 | E 11 |
| kJ | 91 | 19 | — | — | — | 134 | 65 | 55 | 28 | 82 | 5 | 21 | 38 | 90 | — | — | 119 | 44 | 44 | 22 |
Wind waves Height (m) Direction Period (s) | E 6 | E 7 | — | N 6 | NNW 8 | W 8 | W 10 | SSW 9 | SSW 11 | SW 12 | ESE 6 | SSW 12 | SSW 10 | ESE 7 | SE 8 | SE 8 | SE 8 | SE 6 | E 6 | SE 7 |
| kJ | 67 | 79 | — | 158 | 1680 | 2026 | 4222 | 2044 | 5014 | 4368 | 75 | 1839 | 1018 | 153 | 338 | 435 | 277 | 108 | 39 | 189 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 15 | 15 | 590 | 598 | 598 | 598 | 598 | 598 | 755 | 719 | 80 | 0 | 0 | 0 | 80 | 624 | 14 | 14 | 14 | 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.
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