Surf Forecasts:
Tengan surf forecast from 13 Sep 2026:
- Most powerful swell: Sunday 20 Sep, 9AM (local time) - 6ft (1.8m), 15s period, E swell with 1,511 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 1.8m 15s and forecast to arrive on Sunday (Sep 20) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Sep 19) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Sun 20th Sep) | 6ft (1.8m) 15s |
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.
We're looking at a pretty bleak start, honestly. For the next week and a half, the surf is just not cooperating. The wind's all wrong, mostly cross-onshore or onshore, and the swell is tiny and weak. The combined energy is low, often under 100, so we're looking at flat, weak, and bumpy conditions. There's no point even thinking about a paddle. It’s a real dry spell that runs from now until the 26th of September.
Then things get interesting. Around the 26th of September, we start to see a pulse of longer period swell, and the combined energy jumps into the moderate range (427). It's still just marginal though, with cross-shore winds.
The real standout comes on Sunday the 27th of September. Afternoon sees a solid 7 ft swell from the southeast with a very long period of 16 seconds. The combined energy is massive (2813), and we get cross-offshore winds from the northwest, meaning clean, lined-up faces. This is groundswell, and it will be powerful, so it's for experienced surfers only. Tengan is a reef break, which is exactly what you want for a long period groundswell. It's the best on offer by a long shot. The water temp is a balmy 84°, right about average for this time of year.
Monday the 28th gets even bigger with 12 ft to 13 ft swell from the southeast, but the wind turns more cross-shore and the waves get lumpy and tricky. That's still expert territory, and the power is incredible (9715 combined energy).
Tuesday the 29th is just monstrous. We're talking 21 ft to 25 ft of north swell. That's not for anyone but the most hardcore big-wave chargers, and even then, with strong cross-shore winds, it's going to be a dangerous, heavy mess. Combined energy readings over 18,000 tell you all you need to know.
So, to wrap it up: absolutely nothing for the first week and a half. Then, Sunday the 27th of September is your window. Get out there early for the cleanest conditions.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Mon night. Warm (max 28°C on Mon afternoon, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu afternoon. Warm (max 28°C on Thu morning, min 26°C on Thu night). Winds increasing (light winds from the ENE on Thu morning, fresh winds from the N by Sat night). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | ESE 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 9 | NNW 7 | E 9 | E 9 | N 7 | N 7 | N 7 | ESE 17 | E 15 | E 16 | E 16 | E 15 | E 15 | E 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 77 | 76 | 78 | 81 | 88 | 89 | 90 | 62 | 61 | 42 | 41 | 34 | 35 | 34 | 54 | 376 | 1001 | 1438 | 1511 | 1373 | 985 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-off |
High Tide | 8:12PM2.15m | 8:57AM1.96m | 8:35PM2.09m | 9:35AM1.82m | 9:00PM2.00m | 10:17AM1.66m | 9:27PM1.88m | 11:15AM1.51m | 10:00PM1.75m | 1:24PM1.42m | 10:52PM1.61m | 3:53PM1.51m | 1:09AM1.53m | ||||||||
Low Tide | 2:13PM0.61m | 2:40AM0.38m | 2:40PM0.76m | 3:13AM0.43m | 3:06PM0.91m | 3:48AM0.53m | 3:34PM1.07m | 4:30AM0.66m | 4:06PM1.22m | 5:32AM0.80m | 5:04PM1.35m | 7:30AM0.87m | 8:23PM1.39m | ||||||||
 | |  | | |  |  | |  | | | | | | | | | | | | | |
 | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — |
 | — | 6:35 | — | — | 6:34 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — |
mm | 1 | 1 | 3 | 2 | 1 | 3 | — | 2 | — | — | 3 | 1 | 1 | 2 | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 29 | 30 | 29 | 31 | 31 | 30 | 32 | 31 | 30 | 32 | 31 | 30 | 31 | 31 | 29 | 29 | 29 | 28 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | NNW 7 | NNW 7 | NNW 6 | E 9 | N 7 | N 7 | E 9 | ESE 9 | E 15 | E 16 | E 16 | E 15 | E 15 | E 14 |
| kJ | 77 | 76 | 78 | 81 | 88 | 89 | 90 | 47 | 54 | 32 | 41 | 33 | 35 | 23 | 25 | 376 | 1001 | 1438 | 1511 | 1373 | 985 |
Swell 2 Height (m) Direction Period (s) | N 5 | N 5 | NNW 5 | NNW 6 | N 6 | NNW 6 | NNW 6 | E 9 | E 9 | E 9 | N 6 | E 9 | E 9 | ENE 12 | ESE 17 | ESE 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 8 | 4 | 10 | 12 | 16 | 18 | 20 | 62 | 61 | 42 | 20 | 24 | 25 | 14 | 54 | 24 | 5 | 5 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 13 | E 12 | SW 8 | ENE 14 | ENE 14 | ENE 14 | ENE 14 | N 6 | ENE 13 | ENE 12 | S 8 | N 9 | S 8 | — | — | — | — | — |
| kJ | 31 | 14 | 31 | 28 | 12 | 2 | 40 | 37 | 40 | 38 | 7 | 34 | 30 | 5 | 15 | 5 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NE 3 | — | N 7 | N 4 | N 9 | N 4 | N 5 | N 6 | N 7 | N 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 34 | 10 | 52 | 18 | 73 | 125 | 233 | 323 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 28 | 12 | 10 | 12 | 12 | 10 | 12 | 12 | 10 | 10 | 12 | 10 | 12 | 647 | 647 | 621 | 647 | 621 | 772 | 772 | 621 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Tengan surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest