Surf Forecasts:
Tengan surf forecast from 2 Sep 2026:
- Best quality surf: Sunday 6 Sep, 6AM (local time) - 6ft (1.9m), 10s period, N swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 6AM (local time) - 6ft (1.9m), 10s period, N swell with 697 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 3PM (local time) - 4.5ft (1.3m), 10s period with E swell.
Best Forecast Surf Conditions for Tengan this week:
The surf forecast for Tengan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 03) at 3PM. The primary swell is predicted to be 1.3m and 10s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 1.9m 10s and forecast to arrive on Sunday (Sep 06) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Friday (Sep 04) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Thu 3rd Sep) | 4.5ft (1.3m) 10s |
| Best Surf | 6AM (Sun 6th Sep) | 6ft (1.9m) 10s |
| Most Powerful | 6AM (Sun 6th Sep) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Tengan. To be honest, looking at the next couple of weeks, it’s a bit of a slow burn, but there’s a real gem waiting for us if we’re patient.
The first proper window of interest doesn’t arrive until Thursday the 3rd of September. That afternoon, we get a bit of a reprieve with a clean, offshore breeze from the WNW at 12 mph. Swell is coming from the east at 4 ft with a period of 10 seconds, and the combined energy is moderate at 398. It’s not massive, but it’s rideable and clean – a decent little session for the patient ones.
After that, things get a bit messy. Friday the 4th through to Tuesday the 15th of September is a real stretch of mostly poor conditions. The wind is all over the place, often cross or onshore, and the swell is small and inconsistent. There’s a brief flicker on Sunday the 6th in the morning with a 6 ft north swell and cross-offshore wind, giving a clean look and some solid energy (986), but it’s still a marginal call. The rest of that week is a write-off.
Now, here’s the standout. Circle Wednesday the 16th of September. The morning is looking absolutely prime. We’ve got a clean 6 ft east swell, but with a very long period of 13 seconds. That’s proper groundswell. The wind is light and offshore from the NNW, and the combined energy is pumping hard at 1273. For a reef break like Tengan, this long-period east swell is going to line up beautifully. The only thing to keep in mind is that with a period this long, it might be a bit straight for a beach break, but on a reef, it’ll be a thing of beauty. This is the best on offer for the whole 16-day run.
The morning of Thursday the 17th of September also shows some size, with an 8 ft NNW swell, but that’s pushing into expert territory with a shorter period of 9 seconds, and the wind is a cross-shore, not as clean. The energy is still strong (1163), but the quality isn’t there compared to the 16th.
So, for the best surf, you’re looking at the morning of Wednesday the 16th of September. Clean, offshore, long-period east swell at Tengan. That’s the one to wait for. The rest of the time is mostly a gamble.
Rusty out.
Short Range ForecastHeavy rain (total 62mm), heaviest during Wed night. Warm (max 29°C on Wed afternoon, min 26°C on Wed night). Winds decreasing (fresh winds from the ENE on Wed afternoon, light winds from the NW by Fri night). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sun morning. Warm (max 29°C on Mon morning, min 26°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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 | ESE 10 | E 10 | E 10 | E 10 | N 7 | N 8 | N 8 | N 9 | N 10 | N 10 | N 10 | N 10 | NNW 9 | N 9 | N 9 | N 8 | E 11 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 332 | 607 | 562 | 346 | 162 | 86 | 111 | 142 | 392 | 580 | 618 | 618 | 561 | 391 | 209 | 145 | 58 | 59 | 127 | 100 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | off | cross-off | cross-off | cross-off | off | cross | cross-on | cross | cross-off | cross-off | off | cross-on | cross | cross | cross-off | cross-off | cross-off |
High Tide | 9:26PM2.04m | 10:34AM1.74m | 10:03PM1.96m | 11:49AM1.60m | 10:53PM1.85m | 1:54PM1.55m | 00:18AM1.76m | 3:51PM1.66m | 2:18AM1.77m | 4:48PM1.81m | 3:47AM1.90m | 5:29PM1.94m | ||||||||
Low Tide | 3:21PM0.83m | 4:12AM0.50m | 3:57PM1.02m | 5:10AM0.57m | 4:47PM1.22m | 6:30AM0.64m | 6:21PM1.37m | 8:15AM0.63m | 8:50PM1.36m | 9:42AM0.52m | 10:14PM1.22m | 10:43AM0.40m | 11:06PM1.03m | |||||||
 |  |  | |  | | | | | |  |  | | | | | | | | | |
 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:42 | — | — | 6:40 | — |
mm | — | 21 | 17 | 6 | 2 | 7 | 4 | 5 | — | 1 | — | 3 | 1 | — | — | — | 1 | — | — | — |
Temp °C | 29 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 29 | 28 | 27 | 28 | 28 | 27 | 29 | 29 | 27 | 28 | 28 | 27 |
Feels °C | 29 | 27 | 30 | 31 | 30 | 30 | 30 | 30 | 32 | 29 | 29 | 30 | 29 | 29 | 31 | 32 | 30 | 30 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 10 | ESE 10 | E 10 | E 10 | SW 11 | SSW 10 | SW 10 | N 8 | N 9 | N 10 | S 8 | N 10 | N 10 | SW 8 | N 9 | N 9 | WNW 7 | WNW 7 | E 10 | N 8 |
| kJ | 145 | 607 | 562 | 346 | 242 | 409 | 222 | 142 | 392 | 580 | 50 | 618 | 561 | 15 | 209 | 145 | 140 | 70 | 127 | 78 |
Swell 2 Height (m) Direction Period (s) | E 12 | SW 10 | SW 11 | SW 12 | E 10 | N 7 | N 8 | SW 9 | SW 9 | S 9 | SW 9 | SSW 8 | SSW 8 | S 8 | SSW 8 | E 8 | N 8 | N 8 | N 9 | E 10 |
| kJ | 12 | 120 | 169 | 232 | 162 | 86 | 111 | 147 | 99 | 73 | 28 | 80 | 51 | 10 | 22 | 12 | 58 | 48 | 81 | 100 |
Swell 3 Height (m) Direction Period (s) | E 12 | S 8 | S 8 | N 6 | N 7 | N 9 | S 9 | S 10 | S 8 | SW 9 | E 10 | E 9 | E 9 | E 9 | E 8 | S 8 | E 8 | E 11 | WNW 6 | WNW 6 |
| kJ | 26 | 12 | 5 | 52 | 44 | 44 | 79 | 120 | 52 | 52 | 7 | 7 | 6 | 14 | 13 | 10 | 11 | 59 | 48 | 21 |
Wind waves Height (m) Direction Period (s) | E 9 | NE 5 | NNE 6 | — | SW 4 | SSW 8 | — | — | — | N 3 | N 10 | N 10 | — | NNW 9 | WNW 7 | WNW 7 | — | NE 3 | — | — |
| kJ | 332 | 68 | 60 | — | 32 | 270 | — | — | — | 6 | 618 | 361 | — | 391 | 93 | 228 | — | 2 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 12 | 633 | 11 | 0 | 14 | 14 | 14 | 0 | 25 | 23 | 12 | 11 | 40 | 0 | 12 | 37 | 27 | 37 | 679 | 647 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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Information about the Tengan Surf forecast
The above surf forecast table for Tengan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tengan can be found by selecting the local surf guide option on the grey menu. Our Tengan 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 (Tengan) 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 Tengan 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.
Tengan is 5 km (3 miles) from the city of Ishikawa. If you plan a holiday in Okinawa, look for hotels and other accommodation in Ishikawa. Ishikawa has rooms for a wide range of budgets as well as car hire and transport links.
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