Surf Forecasts:
Tengan surf forecast from 30 Aug 2026:
- Most powerful swell: Tuesday 1 Sep, 3AM (local time) - 6.5ft (2.0m), 8s period, ESE swell with 562 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 2.0m 8s and forecast to arrive on Tuesday (Sep 01) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Thursday (Sep 03) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3AM (Tue 1st Sep) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, let me tell you folks, it’s Rusty here, and I’ve gotta be straight with you – it’s a rough run ahead for the Tengan lineup. Looking at the whole 16-day window, we’ve got a long, bleak stretch with no real surf on offer. The first proper glimpse of anything rideable doesn’t even show up until the very end.
From Sunday the 30th of August right through to Sunday the 13th of September, the waves are just junk. We’re talking about a solid two weeks of poor surf conditions, with the wave energy mainly weak to moderate (values between 48 and 475), but never backed by good wind. The water’s sitting at 83°, which is pretty much normal for this time of year – no surprises there, but it’s hard to enjoy sitting in it when there’s no surf.
Monday the 7th of September sees a big pulse of long-period groundswell (14 seconds) pushing in from the east, with swell heights hitting 5ft to 6ft. The combined energy ramps up strong (1017 to 1657), but unfortunately, we’ve got a full-on gale blowing onshore at 40 mph. That makes it a total mess – only for the most hardcore, and honestly, it’s probably more of a kite-surfing setup than a paddle session. That raw power gets even wilder on the 8th and 9th of September, with swell up to 12ft and energy numbers soaring into the thousands (2056 to 3301), but again, the wind is howling onshore or cross-onshore. Those sizes are expert-only, and with the wind, it’s just dangerous.
We finally get a bit of relief on Saturday the 12th, Sunday the 13th, and Monday the 14th of September. The swell drops back to tiny (2ft to 3ft) but the wind turns cross-offshore and goes clean. The combined energy is low (50 to 233) – weak and small. Still, it would be surfable if you’ve got a longboard and no expectations. The period is around 8 to 9 seconds, so it’s a weak, short-period windswell. You might get a few crumbly little waves at Tengan if you time it right.
But let’s not kid ourselves – there isn’t a standout day in this whole forecast. For a spot like Tengan (a reef break that’s rated beginner-friendly but inconsistent), this kind of blank run isn’t totally out of the ordinary. The forecast confidence is highest for the near-term, and it’s all bad. For the long-range stuff (after the 12th), it’s promising to see clean offshore winds, but the swell just isn’t there. Best I can say is keep an eye on the charts – things can shift.
Rusty
Short Range ForecastHeavy rain (total 25mm), heaviest during Tue morning. Warm (max 29°C on Tue afternoon, min 26°C on Sun night). Winds decreasing (fresh winds from the E on Mon night, light winds from the S by Tue afternoon). | Days 4-6 Weather SummaryHeavy rain (total 39mm), heaviest during Wed morning. Warm (max 29°C on Fri afternoon, min 26°C on Wed morning). Winds decreasing (strong winds from the SSE on Wed night, light winds from the ESE by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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 7 | ESE 7 | ESE 7 | E 4 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 7 | E 8 | E 8 | E 8 | E 11 | SW 11 | S 11 | S 10 | SSW 9 | E 10 | NW 7 | NW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 56 | 59 | 76 | 36 | 212 | 547 | 471 | 404 | 243 | 433 | 167 | 86 | 44 | 10 | 0 | 0 | 0 | 0 | 29 | 104 | 153 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 8:04PM2.16m | 8:13AM2.12m | 8:29PM2.15m | 8:54AM2.02m | 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 | ||||||||
Low Tide | 1:49PM0.37m | 2:12AM0.50m | 2:18PM0.49m | 2:47AM0.45m | 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 | ||||||||
 | |  |  | |  |  | | | |  | | | | | | | | | |  | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — |
mm | — | — | — | — | — | 4 | 8 | 1 | 12 | 8 | 6 | 15 | 3 | 3 | 2 | 2 | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 29 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 27 |
Feels °C | 31 | 30 | 29 | 28 | 29 | 27 | 32 | 33 | 30 | 28 | 28 | 26 | 30 | 29 | 30 | 30 | 32 | 31 | 33 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | S 9 | SSW 9 | S 9 | S 9 | S 9 | SW 9 | SW 10 | SSW 12 | SSW 11 | SSW 11 | E 8 | E 8 | E 8 | SW 10 | SW 11 | WNW 9 | WNW 8 | SSW 9 | WNW 6 | NW 7 | NW 8 |
| kJ | 76 | 82 | 54 | 40 | 39 | 27 | 48 | 605 | 894 | 687 | 167 | 86 | 44 | 611 | 808 | 258 | 167 | 138 | 48 | 104 | 153 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 8 | SW 8 | SW 9 | SW 10 | SSW 9 | SSW 8 | E 15 | ESE 9 | — | E 12 | — | E 11 | W 10 | S 9 | SW 10 | S 10 | WNW 7 | SSW 9 | S 8 | SE 13 |
| kJ | 59 | 35 | 44 | 40 | 33 | 25 | 7 | 4 | 243 | — | 12 | — | 10 | 18 | 251 | 270 | 240 | 60 | 82 | 50 | 132 |
Swell 3 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | S 8 | E 15 | E 15 | E 14 | — | — | — | E 11 | E 11 | W 9 | S 11 | SW 10 | SW 10 | E 10 | SE 16 | S 8 |
| kJ | 14 | 14 | 13 | 12 | 12 | 10 | 4 | 18 | 16 | — | — | — | 37 | 10 | 196 | 277 | 63 | 35 | 29 | 66 | 33 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | E 4 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | — | ESE 7 | SSW 11 | SSW 11 | SSW 11 | SSE 7 | — | — | — | — | — | — | — |
| kJ | 56 | 59 | 76 | 36 | 212 | 547 | 471 | 404 | — | 433 | 1447 | 1658 | 1503 | 498 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 13 | 12 | 732 | 621 | 13 | 28 | 613 | 635 | 613 | 613 | 613 | 613 | 10 | 10 | 10 | 13 | 10 | 23 |
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