Surf Forecasts:
Aja surf forecast from 30 Jul 2026:
- Best quality surf: Thursday 6 Aug, 12AM (local time) - 15ft (4.5m), 19s period, E swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 9AM (local time) - 16ft (5.0m), 19s period, E swell with 18,939 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 12AM (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 12AM. The primary swell is predicted to be 4.5m and 19s period. 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 5.0m 19s and forecast to arrive on Thursday (Aug 06) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 18s period and expected on Wednesday (Aug 05) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 6th Aug) | 15ft (4.5m) 19s |
| Best Surf | 12AM (Thu 6th Aug) | 15ft (4.5m) 19s |
| Most Powerful | 9AM (Thu 6th Aug) | 16ft (5.0m) 19s |
Table - best surf conditions forecast for Aja over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's get real about what's coming.
The next couple of weeks are a real mixed bag. We start with a flat spell that stretches from now all the way through the first few days. The wait for something rideable is going to feel like an eternity. The first real chance of a wave at Aja (Bali) doesn't show up until Monday the 5th, and honestly, it's a mess. That's a full week of waiting.
The standout window is shaping up to be the second week. From the 12th of August onwards, things start to get interesting. The best bet on offer is the morning of Wednesday the 12th. The swell is a solid 6ft, coming out of the East, and with a light breeze making it cross-off and clean. The combined energy is moderate at 751. It's not a monster, but the shape should be good with that period. This is the one to circle.
Thursday the 13th morning is also a serious contender. Another 6ft of East swell, clean and smooth with a light breeze. The energy is still decent at 734. This is a quality stretch of days.
The whole first week is a write-off. The 5th has a massive swell (10ft to 12ft) with a long period of 18-19 seconds, but the wind is howling onshore from the north, making it completely blown out. The combined energy is huge (5749 to 8755), but it's a kite-surfing beast, not a paddle wave. The 6th is even worse with gale-force winds and a violent swell. The 7th and 8th bring clean winds but the swell is confused and small, or just too big and messy. The 9th and 10th are tiny, and the 11th is messy with a short period.
The water is sitting around 86°F, which is about a degree and a half warmer than normal for this time of year. It's noticeably warm, but nothing too crazy.
So, to sum it up: sit out the first week. The 12th and 13th of August are your best shots. The 14th also looks promising with a clean 4ft to 5ft swell and a longer period, but the morning of the 12th is the real standout.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 30°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 30°C on Mon afternoon, min 28°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | SE 9 | E 8 | ESE 9 | E 9 | E 9 | E 9 | E 9 | SE 9 | ESE 16 | E 8 | ENE 8 | NE 8 | N 3 | WNW 7 | N 4 | N 4 | E 18 | E 18 | E 19 | E 19 |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 5 | 0 | 6 | 6 | 6 | 6 | 0 | 0 | 5 | 14 | 30 | 3 | 5 | 15 | 22 | 3803 | 5749 | 8755 | 15664 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | glassy | glassy | glassy | glassy | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:26PM2.01m | 7:45AM2.15m | 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 | |||||||
Low Tide | 2:01AM0.91m | 2:25PM0.27m | 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 | ||||||||
 |  |  |  |  | | | | | |  | | | | | | | | |  | |
 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — |
 | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | 1 | 1 |
Temp °C | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 30 | 28 | 30 | 30 | 29 | 30 | 30 | 29 |
Feels °C | 35 | 34 | 34 | 34 | 35 | 33 | 33 | 32 | 32 | 32 | 32 | 31 | 33 | 31 | 32 | 31 | 32 | 31 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 10 | ESE 9 | SW 8 | SW 8 | SE 10 | SE 10 | SE 9 | SE 9 | ESE 17 | ESE 16 | ESE 15 | ESE 16 | ESE 18 | ESE 18 | ESE 18 | E 18 | E 18 | E 19 | E 19 |
| kJ | 22 | 14 | 17 | 10 | 10 | 16 | 17 | 13 | 13 | 168 | 357 | 387 | 679 | 1274 | 1874 | 2316 | 3803 | 5749 | 8755 | 15664 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SE 9 | E 9 | SW 8 | SSW 8 | S 7 | ESE 16 | SE 9 | ENE 8 | ESE 18 | S 7 | SSE 9 | S 8 | S 8 | SSW 8 | — | — | — |
| kJ | 10 | 10 | 10 | 13 | 6 | 10 | 6 | 4 | 48 | 13 | 14 | 64 | 4 | 7 | 12 | 11 | 23 | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 7 | E 8 | SE 6 | E 9 | SE 10 | E 9 | E 9 | SSW 8 | ESE 19 | E 8 | W 7 | SSE 9 | WSW 7 | SSE 7 | — | — | — | — | — | — |
| kJ | 1 | 5 | 1 | 6 | 4 | 6 | 6 | 6 | 37 | 5 | 10 | 8 | 5 | 5 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | WSW 8 | — | NE 8 | N 3 | WNW 7 | N 4 | N 4 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 6 | — | 30 | 3 | 5 | 15 | 22 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1017 | 93 | 784 | 848 | 1033 | 1523 | 1037 | 675 | 10 | 10 | 10 | 10 | 10 | 10 | 598 | 590 | 49 | 598 | 598 | 598 |
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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