Surf Forecasts:
Tengan surf forecast from 27 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 12PM (local time) - 4ft (1.2m), 9s period, E swell with offshore winds.
- Most powerful swell: Wednesday 2 Sep, 3AM (local time) - 6.5ft (2.0m), 9s period, E swell with 603 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 12PM (local time) - 4ft (1.2m), 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 Wednesday (Sep 02) at 12PM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 1.3m and 5s. The wind is predicted to be 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 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 9s period and expected on Thursday (Sep 03) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Wed 2nd Sep) | 4ft (1.2m) 9s |
| Best Surf | 12PM (Wed 2nd Sep) | 4ft (1.2m) 9s |
| Most Powerful | 3AM (Wed 2nd Sep) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let's talk about what’s on the table for Tengan. It's a weird run for this reef break, with a big chunk of slop and bad wind to start. The water temp is 84°F, right where it should be for this time of year. For the first week or so, it's all cross-shore wind and junk, so you can leave your board in the car.
The standout, the one you want to circle in red, is Saturday, September 5th. The morning comes in with a clean 5ft swell from the north, with a solid 11-second period. The combined energy is strong at 575, and you’ve got a light offshore breeze from the north-northwest. That’s a clean, lined-up reef wave with a lot of push. This is not a beginner wave at that size on a reef, but for anyone with experience, this is the session. The afternoon holds at 5ft with the same clean wind. Don't miss it.
After that, Monday morning, September 7th is a big one for the experts. We get a 7ft north-northwest swell with a light offshore wind from the west-northwest. The energy is strong at 704. That’s big and powerful for the reef. The afternoon jumps to 8ft, which is big-wave territory, so stick to the morning if you're going.
The rest of that week is clean but average. Tuesday the 8th, Wednesday the 9th, and Thursday the 10th all have clean wind but swells between 5ft and 6ft with short periods of 7 to 9 seconds. The waves will be there, but they’ll be fat and a bit straight on this reef. By Friday the 11th, the onshore wind comes back and it’s all over.
The call: Tengan on Saturday the 5th of September is your top pick. That north swell with the offshore wind is the cleanest, best-shaped window in the whole 16 days.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Thu afternoon. Warm (max 29°C on Thu afternoon, min 27°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 127mm), heaviest during Tue morning. Warm (max 29°C on Sun afternoon, min 27°C on Sun night). Winds decreasing (gales from the N on Tue morning, moderate winds from the WSW by Wed morning). | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 13 | E 12 | SE 6 | SE 6 | ESE 6 | SE 7 | SE 7 | ESE 7 | E 7 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ENE 9 | ENE 8 | E 8 | ENE 8 | E 9 | E 10 | E 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 28 | 11 | 106 | 94 | 141 | 199 | 156 | 88 | 66 | 168 | 296 | 365 | 222 | 513 | 412 | 386 | 434 | 334 | 260 | 231 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | cross-off | off | off |
High Tide | 6:54PM2.05m | 6:24AM2.15m | 7:16PM2.11m | 6:59AM2.19m | 7:39PM2.15m | 7:35AM2.18m | 8:04PM2.16m | 8:13AM2.12m | 8:29PM2.15m | 8:54AM2.02m | 8:56PM2.11m | 9:40AM1.89m | 9:26PM2.04m | |||||||
Low Tide | 00:36AM0.80m | 12:54PM0.29m | 1:06AM0.68m | 1:22PM0.30m | 1:38AM0.57m | 1:49PM0.37m | 2:12AM0.50m | 2:18PM0.49m | 2:47AM0.45m | 2:48PM0.65m | 3:26AM0.45m | 3:21PM0.83m | ||||||||
 |  |  | |  | | |  |  | | | | | |  | | | | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — |
mm | 2 | 2 | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 6 | 89 | 17 | 7 | 2 | 2 | — |
Temp °C | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
Feels °C | 30 | 31 | 31 | 31 | 28 | 30 | 30 | 29 | 29 | 29 | 27 | 27 | 28 | 27 | 29 | 26 | 27 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | W 10 | WNW 10 | WNW 10 | W 9 | W 9 | SW 9 | SW 9 | SW 8 | S 8 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | SW 10 | S 10 | S 10 | S 10 | E 9 | E 10 | E 11 |
| kJ | 1293 | 684 | 342 | 173 | 101 | 86 | 81 | 58 | 37 | 168 | 296 | 365 | 222 | 16 | 17 | 51 | 73 | 334 | 260 | 231 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 12 | SW 9 | SW 9 | SW 9 | W 8 | W 8 | SSW 9 | SW 8 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SW 10 | SW 9 | SW 10 | S 9 | S 10 | N 6 |
| kJ | 12 | 11 | 79 | 75 | 81 | 50 | 19 | 29 | 35 | 41 | 49 | 29 | 17 | 7 | 15 | 14 | 15 | 45 | 46 | 30 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 16 | E 12 | S 7 | E 13 | ENE 13 | ENE 13 | ENE 12 | SE 10 | SW 8 | ENE 12 | SW 9 | SW 9 | S 10 | NW 7 | NW 7 | E 13 | SW 10 | SW 10 | SSW 10 |
| kJ | 28 | 5 | 25 | 4 | 14 | 17 | 17 | 30 | 17 | 24 | 13 | 12 | 13 | 8 | 2 | 2 | 3 | 14 | 14 | 31 |
Wind waves Height (m) Direction Period (s) | S 8 | SSE 8 | SE 6 | SE 6 | ESE 6 | SE 7 | SE 7 | ESE 7 | E 7 | ENE 4 | NE 5 | NE 6 | NE 6 | ENE 9 | ENE 8 | E 8 | ENE 8 | NNE 5 | N 5 | WNW 6 |
| kJ | 93 | 159 | 106 | 94 | 141 | 199 | 156 | 88 | 66 | 26 | 51 | 155 | 137 | 513 | 412 | 386 | 434 | 72 | 86 | 114 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 631 | 28 | 613 | 840 | 613 | 679 | 840 | 13 | 12 | 647 | 631 | 621 | 647 | 621 | 1346 | 1293 | 773 | 14 | 0 | 0 |
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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