Surf Forecasts:
Tengan surf forecast from 12 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 12PM (local time) - 2.5ft (0.7m), 9s period, E swell with glassy winds.
- Most powerful swell: Saturday 19 Sep, 9PM (local time) - 2.5ft (0.7m), 16s period, E swell with 245 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 12PM (local time) - 2.5ft (0.7m), 9s 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 Tuesday (Sep 15) at 12PM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.4m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 0.7m 16s and forecast to arrive on Saturday (Sep 19) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 15th Sep) | 2.5ft (0.7m) 9s |
| Best Surf | 12PM (Tue 15th Sep) | 2.5ft (0.7m) 9s |
| Most Powerful | 9PM (Sat 19th Sep) | 2.5ft (0.7m) 16s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s check the lineup ahead. It’s a rough one for anyone waiting on a wave.
For the first week, from Saturday the 12th through to Saturday the 19th, there’s nothing worth paddling for. The swell is small, mostly under 3 ft, with short periods, and the wind is onshore or cross-onshore from the east and northeast. The combined wave energy is weak, barely scratching triple digits. Every session is flagged as “poor surf conditions.”
On Sunday the 20th, a bigger swell rolls in – 6 ft from the east with a 15-second period. The combined energy spikes to 1276 (very strong). But the wind is screaming from the north at 28 to 31 mph, cross-shore. It’s messy, choppy, and better suited for kite surfing than a paddle board. The water temp is 84°, normal for the season.
The only glimmer shows up on Tuesday the 22nd in the morning. The wind turns offshore from the west at 19 mph, and you’ve got 5 ft of north swell with an 8-second period. Combined energy is 365 (moderate). It’s not perfect, but it’s the cleanest you’ll see. After that, it’s back to onshore wind and small, weak waves.
For a spot that’s already hit-and-miss, this is a tough couple of weeks. Don’t force it – just wait for the next change in the charts.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Tue morning. Warm (max 29°C on Sat afternoon, min 27°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 16mm), heaviest on Thu morning. Warm (max 28°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 7 | E 14 | E 14 | E 14 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | ENE 13 | E 9 | E 9 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 45 | 36 | 35 | 36 | 85 | 77 | 79 | 82 | 79 | 85 | 90 | 88 | 65 | 64 | 42 | 59 | 34 | 52 | 38 | 34 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | on | on | on | cross-on | on | cross-on | on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on |
High Tide | 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 | 11:15AM1.51m | 10:00PM1.75m | |||||||
Low Tide | 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 | 4:30AM0.66m | 4:06PM1.22m | ||||||||
 |  | |  |  | | | |  | | | |  | | | | |  | | | |
 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | — | — | 2 | 1 | — | — | 8 | 7 | 1 | 2 | 2 | — | 5 | 5 | — | — | 1 | 2 | — |
Temp °C | 29 | 27 | 29 | 28 | 27 | 29 | 29 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 29 | 27 |
Feels °C | 32 | 30 | 31 | 29 | 29 | 32 | 31 | 29 | 32 | 31 | 32 | 32 | 31 | 30 | 31 | 30 | 29 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | N 7 | N 6 | NNW 6 | ESE 7 | N 5 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 10 | E 10 | E 10 | NNW 7 | NNW 6 | E 9 | NNW 6 | N 7 | N 7 | E 8 |
| kJ | 45 | 20 | 12 | 26 | 9 | 77 | 79 | 82 | 79 | 85 | 90 | 88 | 65 | 35 | 30 | 59 | 12 | 22 | 26 | 34 |
Swell 2 Height (m) Direction Period (s) | ESE 6 | E 14 | E 14 | E 14 | E 13 | E 13 | N 5 | E 13 | E 13 | NNW 6 | NNW 5 | NNW 6 | NNW 7 | E 9 | E 9 | N 6 | E 9 | ENE 12 | E 9 | N 7 |
| kJ | 13 | 36 | 35 | 36 | 32 | 31 | 2 | 31 | 29 | 15 | 5 | 15 | 36 | 64 | 42 | 18 | 24 | 30 | 38 | 8 |
Swell 3 Height (m) Direction Period (s) | E 14 | SE 6 | ESE 9 | N 6 | S 6 | N 5 | E 13 | N 5 | — | E 12 | SW 8 | ENE 14 | ENE 14 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | S 8 | ENE 12 | N 9 |
| kJ | 36 | 5 | 17 | 6 | 1 | 5 | 14 | 2 | — | 12 | 2 | 40 | 37 | 40 | 38 | 34 | 34 | 5 | 28 | 14 |
Wind waves Height (m) Direction Period (s) | — | E 3 | E 5 | NE 3 | ESE 8 | E 3 | — | NE 3 | — | — | — | — | — | ENE 3 | — | — | E 3 | E 9 | NE 3 | NE 3 |
| kJ | — | 3 | 21 | 6 | 85 | 3 | — | 2 | — | — | — | — | — | 1 | — | — | 5 | 52 | 2 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 10 | 13 | 13 | 13 | 621 | 28 | 28 | 23 | 10 | 12 | 10 | 10 | 12 | 10 | 10 | 10 | 12 | 10 | 13 | 13 |
Best forecast wave conditions in Okinawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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