Surf Forecasts:
Tengan surf forecast from 1 Sep 2026:
- Best quality surf: Thursday 3 Sep, 9PM (local time) - 3ft (0.9m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 12AM (local time) - 6.5ft (2.0m), 9s period, E swell with 679 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 9PM (local time) - 3ft (0.9m), 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 9PM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 1.1m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 2.0m 9s and forecast to arrive on Wednesday (Sep 02) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 11s period and expected on Friday (Sep 04) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 3rd Sep) | 3ft (0.9m) 10s |
| Best Surf | 9PM (Thu 3rd Sep) | 3ft (0.9m) 10s |
| Most Powerful | 12AM (Wed 2nd Sep) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, let’s get real. This is a tough outlook for the Tengan area. The whole 16-day window is pretty much a bust for quality surf. The problem is that the only recommended spot, Tengan (a reef break that’s inconsistent and best for beginners), just can’t string together a good day. The wind is almost always on it or cross-on it, and the swell is often short period, weak, or just not working with the optimum NE direction.
Right now, starting Tuesday morning, we’ve got onshore winds and poor conditions. That’s going to be the story for a while. The first real chance at something clean doesn’t come until Thursday the 3rd of September. Thursday morning and afternoon, the wind turns cross-offshore with a light to moderate breeze, and we get a 4 ft to 4 ft swell from the east with a period of 10 seconds. The water temp is normal for this time of year at 83°, so that’s fine. It’s a small, weak wave, but it’s clean. That’s the best of the whole run, and it’s still only marginal.
Then Friday the 4th of September morning has a little 4 ft north swell with a cross-offshore breeze, but it’s short period and weak. After that, things get ugly again. The wind goes onshore or cross-onshore for the next week and a half straight. We get a big jump in swell size around the 11th and 12th of September, with waves over 8 ft, but the wind is onshore or cross-onshore, making it a messy, choppy mess. That’s a kite surfer's setup, not a surfer's. For a small, inconsistent reef break, this is a total write-off.
Look, I know it’s frustrating. The whole 16 days is a stretch of blank surf. The only bright spot is that Thursday morning, the 3rd, is clean and rideable, but don’t go expecting much. The rest of the run is just a waiting game. Sometimes the area goes quiet like this, but it never stays poor for long. Forecasts can change.
Rusty
Short Range ForecastModerate rain (total 15mm), heaviest on Thu afternoon. Warm (max 29°C on Wed morning, min 26°C on Wed night). Winds decreasing (fresh winds from the E on Tue morning, light winds from the WNW by Thu night). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Sun morning. Warm (max 29°C on Sat morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 9 | E 9 | E 9 | E 9 | ESE 10 | E 10 | E 10 | N 8 | N 8 | N 7 | NNW 7 | N 9 | N 10 | N 10 | N 9 | N 9 | N 8 | E 6 | E 6 | N 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 529 | 541 | 679 | 473 | 348 | 402 | 354 | 242 | 191 | 167 | 103 | 77 | 252 | 434 | 460 | 287 | 151 | 66 | 59 | 50 | 37 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross |
High Tide | 8:56PM2.11m | 9:40AM1.89m | 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 | |||||||||
Low Tide | 2:48PM0.65m | 3:26AM0.45m | 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 | ||||||||
 |  |  | | |  | | | | | | | | |  | | | | | |  | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:42 | — |
mm | — | 2 | 3 | — | — | — | 2 | 4 | 4 | 1 | 4 | 1 | — | 2 | — | 5 | 1 | 1 | — | 1 | 2 |
Temp °C | 28 | 28 | 27 | 29 | 29 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 29 | 28 | 27 | 28 | 29 | 27 | 29 | 29 | 27 |
Feels °C | 28 | 28 | 27 | 30 | 29 | 25 | 29 | 30 | 31 | 33 | 31 | 30 | 32 | 29 | 29 | 32 | 33 | 30 | 32 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 9 | SW 10 | SW 10 | SW 10 | ESE 10 | E 10 | SW 12 | N 8 | N 8 | N 7 | NNW 7 | N 9 | N 10 | N 10 | N 9 | N 9 | N 8 | WNW 6 | WNW 6 | N 9 |
| kJ | 33 | 30 | 61 | 120 | 196 | 402 | 354 | 349 | 191 | 167 | 103 | 77 | 252 | 434 | 460 | 287 | 151 | 66 | 16 | 23 | 37 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | E 15 | E 14 | E 13 | E 12 | SW 10 | SW 10 | E 10 | SW 12 | SW 11 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | S 8 | S 9 | N 8 | N 9 | WNW 6 |
| kJ | 13 | 4 | 15 | 12 | 12 | 225 | 276 | 242 | 343 | 341 | 115 | 113 | 165 | 113 | 122 | 92 | 44 | 56 | 28 | 43 | 15 |
Swell 3 Height (m) Direction Period (s) | E 15 | E 15 | S 8 | — | — | — | NNE 6 | N 7 | E 10 | E 9 | SW 10 | SW 10 | N 11 | E 10 | E 9 | E 9 | SW 8 | NW 6 | SSW 8 | SW 8 | S 9 |
| kJ | 4 | 17 | 1 | — | — | — | 62 | 74 | 89 | 43 | 122 | 94 | 85 | 16 | 15 | 15 | 23 | 19 | 23 | 16 | 25 |
Wind waves Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | NE 5 | — | — | — | — | — | — | — | — | — | — | ESE 3 | E 5 | E 6 | E 6 | ENE 4 |
| kJ | 529 | 541 | 679 | 473 | 348 | 36 | — | — | — | — | — | — | — | — | — | — | 8 | 45 | 59 | 50 | 24 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 745 | 621 | 621 | 613 | 12 | 37 | 27 | 27 | 0 | 0 | 27 | 27 | 37 | 12 | 12 | 12 | 10 | 10 | 12 | 768 | 37 |
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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