Surf Forecasts:
Tengan surf forecast from 1 Sep 2026:
- Best quality surf: Friday 4 Sep, 12AM (local time) - 4.5ft (1.3m), 8s period, N swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 12AM (local time) - 5.5ft (1.7m), 11s period, ESE swell with 698 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 12AM (local time) - 4.5ft (1.3m), 8s period with N 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 Friday (Sep 04) at 12AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.7m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 1.7m 11s and forecast to arrive on Thursday (Sep 03) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 11s period and expected on Friday (Sep 04) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 4th Sep) | 4.5ft (1.3m) 8s |
| Best Surf | 12AM (Fri 4th Sep) | 4.5ft (1.3m) 8s |
| Most Powerful | 12AM (Thu 3rd Sep) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright folks, Rusty here. I’ve been staring at the charts for our little patch of coast, and honestly, it’s a grim run. Don’t get your hopes up. We’ve got a 16-day window, but the first solid recommendation doesn't appear until Thursday morning, the 3rd of September, and even that’s a struggle.
The first couple of days are a write-off. Tuesday, the 1st, and Wednesday, the 2nd, have some size—around 6 ft to 7 ft—but it’s coming from the East with a fresh onshore breeze. The water sits at 84°F, which is about average for this time of year, but you won’t care about that when you’re getting sideshore mush. The combined energy of all swells hitting the break is moderate, around 484 to 683, but the quality is just poor.
We finally get a glimmer on Thursday morning, the 3rd. Tengan is a reef setup, and it’s inconsistent, so don’t expect a pack. The swell drops to 5 ft from the East, with a period of 10 seconds, and a cross-offshore wind from the NNW at 12 mph. That’s clean. The combined wave energy is a moderate 507. It’s rideable, but it’s a beginner wave at best, and only just surfable. The wind goes a bit wobbly in the afternoon, so the morning is your only shot.
The 4th of September (Friday) is flatter and smaller. The swell drops to 4 ft from the North with a short 8-second period. The wind is cross-offshore again, so it’s clean, but the energy is down to 230. It’s very ordinary.
Then we hit a dry spell. From Saturday the 5th all the way through to Wednesday the 9th, the scores are all zero. The swell picks up a bit on the 9th, hitting 6 ft to 7 ft from the NNW, but the wind is cross or cross-on, leaving it choppy and messy. The energy climbs to 506–581, but the conditions are poor.
There’s a bit more size later in the second week. From Thursday the 10th through to the 14th, we see swell climbing to 8 ft and even 8 ft from the NNW and East. The combined wave energy becomes strong, hitting 924, 1000, and even 1310. But here’s the heartbreaker: every single one of those days has a cross or onshore wind, often a fresh breeze up to 22 mph. The wave comment is “poor surf conditions” across the board. For a beach-and-reef setup like this, that kind of wind and size makes it look more like a kite-surfing session than a paddle-surfing one. If you’re an expert, you might find a lumpy, challenging wave, but don’t expect anything clean.
The very end of the window, Wednesday the 16th, is a tease. The swell drops to 5 ft from the NE with a 7-second period, and the wind is light, but it’s cross-on. The energy is moderate at 391. It’s a marginal day.
The standout, if you can call it that, is Thursday morning, the 3rd of September at Tengan. The cross-offshore wind makes it the cleanest we’ll see, and the 5 ft East swell at 10 seconds is rideable for beginners. It’s inconsistent, but it’s the only real window of clean surf in this whole outlook. The rest is a lesson in patience.
Rusty out.
Short Range ForecastModerate rain (total 18mm), heaviest on Thu morning. Warm (max 29°C on Wed morning, min 26°C on Wed night). Winds decreasing (fresh winds from the E on Tue afternoon, light winds from the NNW by Fri morning). | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Mon morning. Warm (max 29°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 9 | ESE 10 | E 9 | E 9 | ESE 11 | E 10 | E 10 | N 8 | N 8 | NNE 8 | N 7 | N 10 | N 10 | N 9 | N 9 | N 9 | N 9 | N 8 | N 8 | N 9 |
Wave Graph | ||||||||||||||||||||
679 | 667 | 471 | 614 | 698 | 410 | 288 | 193 | 185 | 99 | 108 | 349 | 371 | 295 | 251 | 246 | 175 | 133 | 103 | 196 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | on | cross-on | cross | cross | cross-off | cross-off | cross |
High Tide | 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 | 3:51PM1.66m | 2:18AM1.77m | 4:48PM1.81m | ||||||||
Low Tide | 3:26AM0.45m | 3:21PM0.83m | 4:12AM0.50m | 3:57PM1.02m | 5:10AM0.57m | 4:47PM1.22m | 6:30AM0.64m | 6:21PM1.37m | 8:15AM0.63m | 8:50PM1.36m | 9:42AM0.52m | 10:14PM1.22m | ||||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:42 | — | |
mm | 3 | — | — | — | 5 | 8 | 2 | — | — | — | — | — | — | 3 | — | — | 2 | 4 | 1 | — |
Temp °C | 28 | 28 | 29 | 28 | 26 | 28 | 28 | 27 | 29 | 29 | 27 | 29 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 |
Feels °C | 28 | 28 | 28 | 27 | 24 | 30 | 30 | 30 | 32 | 32 | 31 | 31 | 29 | 29 | 28 | 27 | 27 | 28 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SW 10 | SW 10 | SW 10 | ESE 11 | E 10 | E 10 | SW 12 | N 8 | NNE 8 | N 7 | N 10 | N 10 | N 9 | N 9 | N 9 | N 9 | N 8 | N 8 | E 10 |
30 | 61 | 120 | 120 | 698 | 410 | 288 | 337 | 185 | 99 | 108 | 349 | 371 | 295 | 251 | 246 | 175 | 133 | 103 | 33 | |
Swell 2 Height (m) Direction Period (s) | S 8 | E 14 | E 13 | E 12 | SW 10 | SW 10 | SW 12 | E 10 | SSW 11 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | S 9 | SSW 8 | SSW 8 | SSW 9 | S 8 | S 8 | S 9 |
5 | 15 | 13 | 12 | 120 | 180 | 224 | 87 | 300 | 113 | 113 | 172 | 124 | 73 | 101 | 75 | 79 | 35 | 20 | 26 | |
Swell 3 Height (m) Direction Period (s) | E 15 | S 8 | — | — | — | S 9 | S 8 | SW 12 | E 10 | SW 10 | SW 10 | E 9 | E 9 | SW 9 | NE 10 | E 9 | E 9 | E 8 | SW 8 | NW 6 |
4 | 1 | — | — | — | 6 | 19 | 167 | 45 | 98 | 94 | 14 | 15 | 49 | 17 | 6 | 24 | 12 | 10 | 9 | |
Wind waves Height (m) Direction Period (s) | E 9 | ESE 10 | E 9 | E 9 | NE 6 | N 6 | N 7 | N 8 | — | — | — | — | — | — | ENE 3 | NE 4 | ENE 4 | — | N 3 | N 9 |
679 | 667 | 471 | 614 | 119 | 97 | 147 | 193 | — | — | — | — | — | — | 4 | 16 | 6 | — | 2 | 196 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 647 | 621 | 972 | 13 | 37 | 27 | 40 | 0 | 0 | 11 | 12 | 37 | 37 | 742 | 23 | 37 | 37 | 772 | 647 | 37 |
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.











