Surf Forecasts:
Tengan surf forecast from 10 Sep 2026:
- Most powerful swell: Friday 11 Sep, 9AM (local time) - 3.5ft (1.1m), 8s period, N swell with 173 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 1.1m 8s and forecast to arrive on Friday (Sep 11) 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 0.3m 6s period and expected on Saturday (Sep 12) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Fri 11th Sep) | 3.5ft (1.1m) 8s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you: the next couple of weeks are looking pretty grim for a proper surf. For the next two weeks, there’s just nothing on the cards, and it’s a long, flat stretch. We’re looking at a solid 15-day gap before anything even gets close to worth paddling out for. It’s a real bummer, but that’s how it goes sometimes.
The only spot with any potential in this whole window is Tengan (a reef break). But even then, it’s a waiting game. It stays tiny and messy for days on end. Friday the 11th and Saturday the 12th have nothing but ankle-biters, with waves around 1ft to 4ft and onshore winds. It’s all poor, and the energy is weak, mostly in the 80s to 200s. It’s not worth getting wet.
The swell tries to show up around the 19th and 20th, but it’s going to be completely ruined by brutal cross-shore and onshore winds. We’re talking 5ft to 7ft of swell, with a strong 1445 to 2298 energy behind it, but the wind is howling at 19 to 28 mph. This will be a complete mess—choppy, lumpy, and blown out. This setup is way more interesting for kite surfing than paddle surfing, and honestly, you’d be mad to try and paddle out.
The third week is when things get a little more interesting for the experts. On the 26th of September, there’s a glimmer of hope. The swell is back to 3ft, coming from the E at 12 seconds, with light cross-onshore winds. The energy is a moderate 270, and while it’s still called marginal, it’s the first time all window it’s not a complete zero. Still not a standout, and it’s a long way off, so don’t get too excited yet.
Honestly, the entire window is a write-off. There are no good options. The breaks are either inconsistent or they just don’t fire, so a blank run like this is pretty normal for the area. It’s not going to last forever, though—we just have to wait for the ocean to sort itself out. Keep the board in the car, but maybe just leave it in the garage for now.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Sun afternoon. Warm (max 29°C on Fri morning, min 27°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Mon afternoon. Warm (max 29°C on Wed afternoon, min 26°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | N 8 | N 8 | N 8 | N 7 | N 7 | E 14 | E 14 | ESE 7 | ESE 8 | E 8 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | ENE 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 173 | 57 | 55 | 48 | 36 | 36 | 35 | 36 | 85 | 68 | 79 | 84 | 81 | 81 | 87 | 92 | 63 | 61 | 60 | 41 | 34 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on | on |
High Tide | 7:00PM2.17m | 7:04AM2.23m | 7:26PM2.19m | 7:42AM2.18m | 7:49PM2.18m | 8:20AM2.09m | 8:12PM2.15m | 8:57AM1.96m | 8:35PM2.09m | 9:35AM1.82m | 9:00PM2.00m | 10:17AM1.66m | 9:27PM1.88m | ||||||||
Low Tide | 12:46PM0.28m | 1:02AM0.54m | 1:17PM0.36m | 1:35AM0.44m | 1:46PM0.47m | 2:08AM0.39m | 2:13PM0.61m | 2:40AM0.38m | 2:40PM0.76m | 3:13AM0.43m | 3:06PM0.91m | 3:48AM0.53m | 3:34PM1.07m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:31 | — | — | 6:30 | — |
mm | 1 | 2 | 2 | — | — | — | — | 3 | 4 | 2 | 4 | 3 | — | — | 2 | — | — | — | — | 2 | — |
Temp °C | 29 | 29 | 27 | 28 | 29 | 27 | 29 | 29 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 29 | 27 | 28 | 28 | 27 |
Feels °C | 33 | 32 | 30 | 31 | 32 | 30 | 31 | 30 | 30 | 30 | 29 | 30 | 31 | 31 | 30 | 31 | 32 | 30 | 32 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | N 7 | N 7 | N 6 | N 6 | ESE 7 | N 5 | E 8 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | 173 | 57 | 55 | 48 | 34 | 20 | 12 | 36 | 17 | 68 | 79 | 84 | 81 | 81 | 87 | 92 | 63 | 61 | 60 | 41 | 25 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | NNW 8 | WNW 6 | SE 6 | E 14 | E 14 | E 14 | E 14 | E 13 | N 5 | E 13 | E 13 | E 13 | E 12 | NNW 6 | NW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 |
| kJ | 28 | 46 | 6 | 18 | 36 | 36 | 35 | 36 | 32 | 8 | 30 | 31 | 13 | 12 | 10 | 10 | 15 | 21 | 21 | 12 | 10 |
Swell 3 Height (m) Direction Period (s) | E 15 | E 15 | E 15 | E 14 | S 7 | SE 6 | ESE 9 | S 6 | S 6 | E 13 | SW 8 | SW 8 | N 4 | SSW 8 | SW 8 | ENE 14 | ENE 14 | ENE 14 | ENE 14 | ENE 13 | ENE 13 |
| kJ | 17 | 17 | 19 | 35 | 4 | 5 | 17 | 1 | 1 | 31 | 2 | 3 | 1 | 7 | 3 | 40 | 37 | 40 | 38 | 34 | 34 |
Wind waves Height (m) Direction Period (s) | — | ESE 8 | ESE 6 | — | ESE 6 | ENE 3 | E 6 | NNE 4 | ESE 8 | — | NNE 5 | NNE 4 | — | — | — | — | — | — | — | — | — |
| kJ | — | 24 | 16 | — | 13 | 3 | 31 | 19 | 85 | — | 10 | 5 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 10 | 10 | 14 | 10 | 13 | 13 | 647 | 621 | 10 | 23 | 621 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 13 | 10 |
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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