Surf Forecasts:
Aja surf forecast from 25 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 9PM (local time) - 1ft (0.3m), 9s period, E swell with 15 kJ wave energy.
Best Forecast Surf Conditions for Aja this week:
The most powerful waves expected at Aja in the next 16 days are 0.3m 9s and forecast to arrive on Saturday (Jul 25) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Saturday (Jul 25) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Sat 25th Jul) | 1ft (0.3m) 9s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Aja. It’s gonna be a tough slog for a while, but there’s a real payoff if you’re patient.
Right now, and for the next week and a half, it’s mostly flat. The only wave on offer is a tiny 1ft dribble from the east, but it’s messy and weak, with a combined energy of just 16. It’s not worth paddling out for. The water temp is sittin’ at 85°, which is bang on average for this time of year, so at least you won’t be cold while you’re waitin’.
We’ve got a solid stretch of dead-calm days from the 27th of July right through to the 4th of August. Some glassy mornings, like the 29th, but no swell to ride. It’s a proper dry spell.
Then, finally, things start to get interesting. The real standout is the morning of Wednesday, August 5th. The wind goes glassy, and we see a 4ft east swell with a long 15-second period. That’s proper groundswell rolling in, pumping out a combined energy of 653. For a reef break like Aja, that kind of long-period east swell is a dream. It’s gonna be clean, lined up, and have some serious push. This is the one to circle on the calendar.
The following days keep the goods coming. Thursday, August 6th, has another glassy morning with 4ft of east swell, energy at 806. By Friday, August 7th, we get a light offshore breeze with 3ft to 3ft of east-northeast swell – still clean and enticing.
But for the real heavyweight, look to Saturday, August 8th in the afternoon. The swell jumps to 8ft from the east, with a 12-second period and a combined energy of 1929. That’s a lot of power. The wind is a moderate offshore from the south-southeast, so it’ll be clean and hollow. This is serious, expert-level stuff. If you’ve got the nerve, that’s the session.
The swell hangs around into Sunday, August 9th, with 6ft in the morning and 5ft in the afternoon, both with offshore winds. Good, solid waves, but that Saturday afternoon is the peak.
So, hang tight through the flat spell. The first real taste of action is August 5th, but the big dog is August 8th. Don’t sleep on it.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Warm (max 30°C on Sat afternoon, min 28°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 30°C on Tue afternoon, min 27°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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) | E 9 | E 9 | E 9 | S 8 | E 9 | S 8 | S 8 | SE 10 | E 8 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | E 8 | SW 9 | E 9 | E 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 15 | 14 | 0 | 6 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 6 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | glassy | cross | glassy | cross-on | cross-on | on | cross-on | on | cross-on |
High Tide | 5:47PM1.67m | 4:19AM1.81m | 6:29PM1.77m | 5:13AM1.89m | 7:03PM1.86m | 5:57AM1.98m | 7:33PM1.92m | 6:35AM2.06m | 8:00PM1.97m | 7:10AM2.12m | 8:26PM2.01m | 7:45AM2.15m | 8:52PM2.04m | |||||||
Low Tide | 10:45PM1.30m | 11:37AM0.57m | 11:40PM1.24m | 12:19PM0.48m | 00:21AM1.16m | 12:54PM0.39m | 00:56AM1.08m | 1:26PM0.32m | 1:29AM0.99m | 1:56PM0.28m | 2:01AM0.91m | 2:25PM0.27m | 2:34AM0.83m | |||||||
 |  | | | |  | |  | | | | | |  | | | | | | | |
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — |
 | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — |
mm | — | — | — | — | — | — | — | 2 | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 29 | 29 | 30 | 28 | 30 | 30 | 28 | 29 | 30 | 28 | 30 | 30 | 29 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 35 | 35 | 34 | 35 | 32 | 34 | 33 | 32 | 32 | 33 | 32 | 35 | 35 | 34 | 33 | 33 | 32 | 33 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | ESE 10 | ESE 5 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SW 9 | ESE 9 | SW 9 | SW 9 |
| kJ | 166 | 137 | 105 | 90 | 115 | 66 | 45 | 31 | 18 | 38 | 9 | 24 | 15 | 22 | 22 | 23 | 20 | 17 | 20 | 20 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | SE 10 | SSW 8 | SE 11 | SW 8 | SE 10 | SE 10 | SE 10 | S 7 | SE 10 | ESE 5 | ESE 5 | ESE 5 | SW 8 | SW 8 | SE 10 | SW 9 | SE 9 | E 9 |
| kJ | 16 | 15 | 16 | 23 | 40 | 17 | 37 | 36 | 35 | 17 | 25 | 5 | 6 | 3 | 18 | 18 | 14 | 20 | 13 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 16 | SE 10 | E 9 | SE 10 | E 9 | SE 10 | SW 8 | SW 8 | E 8 | SW 8 | S 7 | SW 8 | SW 7 | SW 7 | S 7 | S 7 | E 8 | S 6 | E 9 | SE 9 |
| kJ | 10 | 16 | 14 | 23 | 6 | 39 | 10 | 9 | 5 | 2 | 10 | 9 | 9 | 8 | 4 | 4 | 5 | 1 | 6 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ENE 3 | E 3 | ESE 3 | ESE 4 | ESE 4 | ESE 4 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 2 | 2 | 1 | 6 | 6 | 6 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 1017 | 675 | 24 | 813 | 93 | 684 | 778 | 784 | 831 | 778 | 1033 |
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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