
Surf Forecasts:
Aja surf forecast from 15 Jul 2026:
- Most powerful swell: Saturday 18 Jul, 12PM (local time) - 3.5ft (1.1m), 6s period, SW swell with 86 kJ wave energy.
Best Forecast Surf Conditions for Aja this week:
The most powerful waves expected at Aja in the next 16 days are 1.1m 6s and forecast to arrive on Saturday (Jul 18) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Saturday (Jul 18) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Sat 18th Jul) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Alright, let’s have a look at what’s lined up for Aja over the next couple of weeks.
Honestly, mate, it’s a pretty grim stretch. The whole 16-day window is a write-off if you’re after a proper session. The first few days show nothing but tiny, weak swell and messy cross-shore winds, with combined energy bouncing between 12 and 28 – that’s barely a ripple. The water temp is sitting at 81°, which is about 3° cooler than usual for this time of year, so it’s a bit nippier than you’d expect, but that’s not really the problem.
From Wednesday 15 July through to the end of the month, the swell is almost always under 2 ft, with periods mostly under 10 seconds. That’s just not enough to get the reef working. The wind is a constant issue – cross, cross-on, or cross-off – but never clean enough to make something out of nothing. The best you get is a couple of glassy windows on the morning of Friday 24 July, where the swell bumps up to 1 ft from the ENE, energy hits 56, and the wind drops to glass. That’s the only moment in the whole forecast that reaches a “surfable” rating, but even then it’s described as very ordinary. It’s a reef break, so that tiny, weak swell with a 10-second period won’t produce much shape, and it’s inconsistent to begin with.
There’s a long gap of nothing after that. From Saturday 25 July onward, the swell drops even further, and by Monday 27 July, there’s literally zero wave energy for a couple of days. The wind turns strong and gusty, with thunderstorms possible, and combined energy hits zero. That’s a dead zone.
So, to be straight with you: there’s no standout session here. The only day that might be worth a paddle is the morning of Friday 24 July if you’re desperate for a stretch of the legs. The waves will be tiny, the crowd might be on it (it’s a sometimes crowd spot), and the break is inconsistent, so don’t expect much. For the rest of the window, save your wax and wait for a better forecast.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 27°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Sat morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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) | E 9 | E 8 | SW 10 | SW 5 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
Wave Graph | |||||||||||||||||||||
15 | 12 | 0 | 23 | 17 | 17 | 16 | 16 | 17 | 16 | 16 | 17 | 16 | 15 | 15 | 16 | 16 | 15 | 15 | 14 | 25 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross-on | glassy |
High Tide | 8:37PM2.11m | 7:56AM2.29m | 9:17PM2.10m | 8:44AM2.23m | 9:54PM2.07m | 9:32AM2.10m | 10:29PM2.02m | 10:20AM1.95m | 11:02PM1.97m | 11:12AM1.78m | 11:36PM1.92m | 12:12PM1.62m | 00:12AM1.86m | ||||||||
Low Tide | 2:00PM-0.03m | 2:10AM0.93m | 2:44PM0.03m | 2:56AM0.87m | 3:25PM0.15m | 3:42AM0.83m | 4:04PM0.33m | 4:29AM0.81m | 4:39PM0.53m | 5:18AM0.80m | 5:15PM0.74m | 6:11AM0.80m | 5:52PM0.94m | ||||||||
5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | |
— | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 31 | 30 | 31 | 30 | 30 | 30 | 30 | 31 | 32 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 7 | S 7 | SW 10 | SW 9 | E 10 | E 10 | E 10 | E 10 | SE 8 | E 10 | E 10 | W 7 | E 9 | E 9 | E 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 |
40 | 27 | 17 | 45 | 86 | 17 | 16 | 16 | 17 | 11 | 16 | 17 | 15 | 15 | 15 | 16 | 112 | 69 | 80 | 97 | 78 | |
Swell 2 Height (m) Direction Period (s) | E 9 | SE 11 | ESE 10 | ESE 9 | E 10 | S 7 | SSE 9 | SE 9 | SE 9 | E 10 | SE 8 | SE 8 | E 10 | SSE 9 | SSE 9 | SSE 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
15 | 18 | 38 | 29 | 17 | 4 | 9 | 14 | 13 | 16 | 11 | 11 | 16 | 8 | 8 | 8 | 16 | 15 | 15 | 14 | 25 | |
Swell 3 Height (m) Direction Period (s) | SE 11 | E 8 | ESE 11 | S 7 | S 7 | SSE 10 | W 8 | S 7 | S 7 | S 6 | S 6 | E 14 | SSE 10 | S 7 | S 7 | S 7 | SSE 8 | SSE 8 | S 7 | S 7 | S 7 |
19 | 12 | 11 | 9 | 9 | 9 | 5 | 4 | 3 | 1 | 1 | 4 | 9 | 1 | 4 | 3 | 7 | 7 | 4 | 4 | 4 | |
Wind waves Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 5 | W 5 | SW 9 | SW 9 | WSW 7 | SW 8 | SW 7 | WSW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | — | — | — | — | — |
138 | 136 | 136 | 23 | 11 | 97 | 152 | 91 | 140 | 139 | 123 | 167 | 167 | 169 | 128 | 111 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 598 | 706 | 598 | 717 | 700 | 590 | 598 | 675 | 590 | 675 | 590 | 613 | 675 | 706 | 613 | 93 | 93 | 14 | 93 | 598 | 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.










