Surf Forecasts:
Turtles surf forecast from 26 Aug 2026:
- Most powerful swell: Wednesday 2 Sep, 3PM (local time) - 21ft (6.5m), 9s period, N swell with 6,503 kJ wave energy.
Best Forecast Surf Conditions for Turtles this week:
The most powerful waves expected at Turtles in the next 16 days are 6.5m 9s and forecast to arrive on Wednesday (Sep 02) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 13s period and expected on Wednesday (Sep 02) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3PM (Wed 2nd Sep) | 21ft (6.5m) 9s |
Table - best surf conditions forecast for Turtles over the next 16 days.
The Lowdown
Alright, let’s get real. It’s a quiet start to the 16-day window for the Turtles region. The first few days are a write-off. Wednesday the 26th to Friday the 28th of August serve up nothing but onshore junk, with a near gale screaming on Wednesday. You wouldn’t even paddle out. The combined energy is moderate but wasted – 608 in the water but blown to bits.
Saturday the 29th of August drops right off. Tiny knee-high leftovers, energy down to 65, and clean conditions but no push. From Sunday the 30th into Tuesday the 1st of September, it flatlines. Zero energy for days. A proper gap.
Then we get a pulse. Wednesday the 2nd of September sees a massive spike in energy – 5773 on Wednesday morning – but the cross-onshore wind ruins it. That’s heavy, messy swell, 10 ft to 13 ft, but it’s a washing machine. Not for paddling, maybe the kite crew would have a look.
Now, here’s the standout. Thursday the 3rd of September afternoon. This is the best of the entire run. The swell settles to 12 ft from the WNW, with a nice long period of 12 seconds – proper groundswell. The wind turns light, cross-off, and the surf is clean. The combined energy is still pumping at 3471. This is for experienced surfers only – over 8 ft is expert territory. Turtles is a reef break, fairly exposed to the swell, and the optimum direction is N, so this WNW swell is angled in nicely. It’s gonna be a beautiful, powerful, clean afternoon. Crowds are possible here sometimes, so expect company.
The 4th of September Friday keeps it going but smaller. 8 ft to 7 ft from the WNW, clean with a light offshore from the east. Energy drops to 1275 then 910. Still very good, especially for the more confident intermediate surfer.
Saturday the 5th of September morning is still surfable at 4 ft, clean, but it’s fading. The 7th of September Monday morning brings a sudden spike to 8 ft from the NNW with a short period of 7 seconds and glassy conditions – energy at 1319. That’s a short-period groundswell, so it’ll be a bit walled up at the reef, but glassy offshore is a rare treat. Worth a paddle.
After that, through the 8th to the 10th of September, there’s consistent 7 ft to 8 ft swell from the NW or WNW, clean, but the period drops to 8 or 9 seconds. The energy is moderate to strong (600-1000), but the quality is only marginal. It’s surfable, but not the good stuff.
The water temperature is sitting at 84°, which is bang on average for this time of year. Nothing weird there.
So, if you’re picking a session, Thursday the 3rd of September afternoon is the one. Big, clean, powerful. Monday the 7th of September morning is a close second for the glassy conditions. The rest is either flat, blown out, or just average.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed afternoon. Warm (max 29°C on Thu morning, min 27°C on Thu night). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Mon afternoon. Warm (max 29°C on Sat afternoon, min 27°C on Sat night). Winds increasing (light winds from the E on Sat night, strong winds from the NW by Tue morning). | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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) | WNW 9 | E 13 | W 9 | W 10 | W 10 | W 10 | W 9 | W 8 | E 13 | E 13 | E 12 | ESE 8 | E 12 | E 11 | ESE 10 | ESE 9 | NNE 6 | NE 7 | NNE 7 | NNE 7 |
Wave Graph | ||||||||||||||||||||
672 | 55 | 388 | 510 | 346 | 239 | 79 | 29 | 55 | 53 | 47 | 0 | 44 | 22 | 0 | 0 | 223 | 391 | 672 | 574 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross-on |
High Tide | 6:59PM1.84m | 6:25AM1.97m | 7:23PM1.93m | 7:01AM2.05m | 7:47PM1.99m | 7:37AM2.09m | 8:12PM2.04m | 8:13AM2.09m | 8:38PM2.06m | 8:51AM2.04m | 9:05PM2.05m | 9:31AM1.95m | 9:34PM2.01m | |||||||
Low Tide | 00:38AM0.84m | 12:59PM0.24m | 1:08AM0.71m | 1:28PM0.22m | 1:38AM0.59m | 1:57PM0.24m | 2:10AM0.48m | 2:26PM0.32m | 2:43AM0.41m | 2:56PM0.43m | 3:18AM0.37m | 3:27PM0.58m | ||||||||
— | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | |
mm | 2 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 2 | 1 | 2 |
Temp °C | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 28 |
Feels °C | 27 | 28 | 30 | 30 | 31 | 31 | 31 | 30 | 31 | 31 | 29 | 30 | 30 | 28 | 28 | 28 | 27 | 27 | 26 | 28 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | E 8 | W 9 | W 10 | W 10 | W 10 | SW 9 | SSW 9 | SSW 9 | SSW 8 | S 9 | ESE 8 | ESE 9 | SSW 8 | ESE 10 | ESE 9 | ESE 11 | ESE 14 | ESE 14 | ESE 12 |
672 | 33 | 388 | 510 | 346 | 239 | 91 | 101 | 101 | 88 | 79 | 197 | 264 | 61 | 482 | 544 | 1150 | 4635 | 5289 | 2969 | |
Swell 2 Height (m) Direction Period (s) | ESE 9 | E 13 | E 7 | SW 8 | E 12 | SW 9 | W 9 | W 8 | E 13 | E 13 | SW 9 | S 9 | SSW 8 | E 11 | S 9 | S 9 | SSW 9 | SSW 11 | SSW 10 | SW 10 |
65 | 55 | 28 | 115 | 26 | 112 | 79 | 29 | 55 | 53 | 64 | 54 | 80 | 22 | 45 | 42 | 25 | 88 | 52 | 15 | |
Swell 3 Height (m) Direction Period (s) | E 14 | SE 9 | E 13 | E 7 | E 16 | E 12 | S 8 | S 7 | W 7 | S 7 | E 12 | SW 9 | E 12 | S 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 |
35 | 22 | 53 | 37 | 5 | 25 | 10 | 9 | 9 | 8 | 47 | 46 | 44 | 7 | 31 | 25 | 26 | 16 | 35 | 15 | |
Wind waves Height (m) Direction Period (s) | SW 7 | WSW 9 | SSW 8 | S 4 | SSE 8 | SE 6 | SE 6 | ESE 6 | SE 7 | SE 7 | ESE 8 | — | — | ESE 9 | NE 5 | NE 6 | NNE 6 | NE 7 | NNE 7 | NNE 7 |
509 | 845 | 147 | 30 | 240 | 136 | 120 | 181 | 198 | 143 | 171 | — | — | 409 | 61 | 123 | 223 | 391 | 672 | 574 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 600 | 609 | 600 | 600 | 13 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 659 | 659 | 777 | 609 | 1169 | 1169 | 763 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Turtles Surf forecast
The above surf forecast table for Turtles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Turtles can be found by selecting the local surf guide option on the grey menu. Our Turtles 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 (Turtles) 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 Turtles 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.
Turtles is 3 km (2 miles) from the city of Chatan. If you plan a holiday in Okinawa, look for hotels and other accommodation in Chatan. Chatan has rooms for a wide range of budgets as well as car hire and transport links.











