
Surf Forecasts:
Aja surf forecast from 31 Jul 2026:
- Best quality surf: Thursday 6 Aug, 3AM (local time) - 15ft (4.5m), 19s period, E swell with cross-onshore winds.
- Most powerful swell: Friday 7 Aug, 9AM (local time) - 31ft (9.5m), 13s period, W swell with 30,753 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 3AM (local time) - 15ft (4.5m), 19s 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 Thursday (Aug 06) at 3AM. The primary swell is predicted to be 4.5m and 19s period with a secondary swell of 1.9m and 7s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Aja in the next 16 days are 9.5m 13s and forecast to arrive on Friday (Aug 07) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 9.5m 13s period and expected on Friday (Aug 07) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 6th Aug) | 15ft (4.5m) 19s |
| Best Surf | 3AM (Thu 6th Aug) | 15ft (4.5m) 19s |
| Most Powerful | 9AM (Fri 7th Aug) | 31ft (9.5m) 13s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s switch to feet and Fahrenheit for the same outlook.
The first week and a half at Aja is a total bust. Nothing but tiny, weak waves and onshore junk until the 5th of August. That’s a long stretch of flatness.
On the morning of Wednesday the 5th, a big pulse hits: 10-foot swell from the east, with a very long period of 18 seconds. That’s a lot of energy, over 5000 units, but the wind is a moderate cross-shore, so it’s going to be choppy and lumpy. Only for experienced surfers who don’t mind a fight. The afternoon gets uglier with stronger wind.
The 6th of August is a washout. The swell is over 18 feet with near gale winds. That’s kite-surfing territory, not for boards. The 7th is even worse with hurricane-force winds. Stay on the beach.
The 8th and 9th see the swell drop, but it’s still hammered by strong southerly winds. The waves are clean, but the wind is howling.
The real window is from the 11th of August. On Tuesday morning, we get a 4-foot east swell with a solid 13-second period, and the wind is offshore from the southeast. That’s clean, glassy, and beautiful. The energy is moderate, so it’ll have some punch. The morning is the pick with a gentle offshore breeze. The afternoon is also good, just a bit windier. This carries through the 12th and 13th. This is your time.
Aja is a reef break that’s inconsistent, so it doesn’t fire often, but when the east swell lines up with offshore wind, it’s gold. The water temp is about 86°, which is a touch warmer than normal for the season. Crowds can be a problem here sometimes, so get there early.
The 15th of August brings a bigger, 6-foot swell, but it’s short period and cross-shore, so it won’t be as clean. A backup plan, but nothing beats that offshore window from the 11th to the 13th.
That’s the story. Only one break, and it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Fri afternoon, min 28°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Mon night. Warm (max 31°C on Tue morning, min 28°C on Mon night). Winds increasing (light winds from the NNE on Tue afternoon, near gales from the NNW by Thu morning). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 | E 9 | SE 9 | ESE 16 | ESE 17 | ESE 16 | E 8 | N 3 | N 4 | N 4 | ESE 18 | ESE 18 | E 18 | E 19 | E 19 | E 19 | E 19 | NNW 12 |
Wave Graph | ||||||||||||||||||||
6 | 6 | 6 | 6 | 0 | 0 | 0 | 0 | 11 | 2 | 8 | 13 | 0 | 0 | 5026 | 8011 | 13528 | 23408 | 22998 | 15105 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | on | glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 8:52PM2.04m | 8:20AM2.14m | 9:17PM2.05m | 8:57AM2.09m | 9:44PM2.05m | 9:38AM2.01m | 10:13PM2.03m | 10:23AM1.90m | 10:45PM2.00m | 11:18AM1.77m | 11:23PM1.95m | 12:31PM1.64m | 00:13AM1.90m | |||||||
Low Tide | 2:34AM0.83m | 2:54PM0.30m | 3:09AM0.76m | 3:23PM0.38m | 3:46AM0.71m | 3:54PM0.51m | 4:27AM0.69m | 4:27PM0.68m | 5:16AM0.68m | 5:06PM0.88m | 6:15AM0.68m | 5:55PM1.09m | ||||||||
— | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | |
7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 3 | — | 1 | 1 | 2 | — | — | 3 | 9 | 44 |
Temp °C | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 30 | 30 | 29 | 31 | 30 | 29 | 31 | 31 | 29 | 29 | 28 | 29 |
Feels °C | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 31 | 32 | 34 | 34 | 32 | 33 | 32 | 29 | 27 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SE 10 | SE 10 | SE 9 | SE 9 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 18 | ESE 18 | ESE 18 | E 18 | E 19 | E 19 | E 19 | E 19 | ENE 17 |
10 | 10 | 16 | 17 | 13 | 13 | 168 | 357 | 474 | 679 | 803 | 1690 | 2342 | 3162 | 5026 | 8011 | 13528 | 23408 | 22998 | 9414 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 9 | SW 8 | SSW 8 | S 7 | ESE 16 | SE 9 | ESE 8 | E 8 | S 7 | SSE 9 | S 9 | SSW 9 | SSE 8 | — | — | — | — | — | — |
13 | 6 | 10 | 6 | 4 | 48 | 20 | 14 | 11 | 4 | 8 | 14 | 26 | 21 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | E 9 | ESE 9 | E 9 | E 9 | SSW 8 | ESE 19 | S 7 | SE 9 | SSE 9 | SW 7 | S 7 | — | — | — | — | — | — | — | — | — |
6 | 8 | 6 | 6 | 6 | 37 | 4 | 13 | 8 | 2 | 4 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 7 | N 3 | N 4 | N 4 | — | — | E 8 | — | — | N 8 | NNW 9 | NNW 12 |
— | — | — | — | — | — | — | — | 4 | 2 | 8 | 13 | — | — | 29 | — | — | 1103 | 2737 | 15105 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 848 | 1007 | 1428 | 1377 | 675 | 10 | 10 | 17 | 39 | 17 | 17 | 49 | 17 | 17 | 49 | 719 | 598 | 761 | 778 | 598 |
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)
Latest Updates
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.











