
Surf Forecasts:
Tengan surf forecast from 17 Jul 2026:
- Most powerful swell: Wednesday 22 Jul, 9PM (local time) - 1ft (0.3m), 12s period, ENE swell with 27 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 0.3m 12s and forecast to arrive on Wednesday (Jul 22) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 8s period and expected on Saturday (Jul 18) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Wed 22nd Jul) | 1ft (0.3m) 12s |
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.
First off, I gotta be straight with you — this is a rough stretch for the reef. The water’s sittin’ at 81°, which is a bit colder than usual for this time of year, so you might want an extra layer. But the real story is the surf: we’re looking at a long, dry spell. The whole first week, from Friday 17 July right through to the early morning of Monday 27 July, is a total write-off. Day after day of tiny, weak waves — generally around 0.7ft to 1ft — with weak energy readings (mostly single and low double digits, like 11 to 70). The wind is a mixed bag of cross-off, cross, and cross-on, but even when it goes glassy on the 23rd, there’s just no swell to work with. The consistency is "inconsistent" and breaks rarely, so don’t bother paddling out.
Now, things get a bit more interesting but also more dangerous. On Monday 27 July, the swell jumps up, but it’s a stormy mess. The morning shows an 8ft E swell with a 15-second period, but with storm-force cross-onshore winds (56 mph), it’s a total disaster. The energy is massive (2969), but for paddle surfing, you’d be a fool to go out. That afternoon, the wind swings cross-off and drops to 68 mph, but the swell is still 7ft — that’s expert-only territory, and even then, with the wind still howling, it’s a question of survival. The setup looks more interesting for kite surfing than paddle surfing.
The standout window, if you can call it that, is Wednesday 29 July. The morning has a clean 6ft swell from the north with a 12-second period, and a fresh breeze from the southwest (19 mph) keeping it cross-off. The combined energy is strong (1113). That afternoon, it cleans up a bit more: 7ft, still from the north, 11-second period, moderate breeze, with a score that’s marginally better. For a break that’s rarely on, this is about as good as it’s going to get. But listen — this is a reef break, and the swell direction is N, while the optimum direction is NE. It’s not a perfect match, but with the wind offering a clean face, it’s your best bet. Just know that the swell is over 5ft, so it’s not for beginners. Also, the long period (12 seconds) means the waves will have good shape and energy, but at a beach break it might break a bit straight; on a reef like this, it should hold up.
After that, it drops off again. By Thursday 30 July, the swell is back down to 5ft, and by Friday 31 July, it’s tiny again. The last few days of the forecast into August are flat and weak.
So, to wrap it up: the first week is a total gap with no surf. The only real chance is Wednesday 29 July, with Tengan offering a solid, clean wave that’s worth a look if you’ve got the experience. It’s not a classic, but it’s all we’ve got.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 27°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Mon afternoon, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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) | E 10 | E 10 | E 10 | SE 9 | SE 8 | SW 8 | E 10 | E 10 | E 9 | E 10 | E 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 |
Wave Graph | |||||||||||||||||||||
8 | 8 | 8 | 3 | 3 | 0 | 7 | 7 | 7 | 7 | 7 | 9 | 17 | 16 | 17 | 16 | 16 | 24 | 22 | 20 | 19 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-on | cross | cross-off | glassy | cross-off | glassy | glassy | glassy | on | cross-on |
High Tide | 9:24PM2.06m | 8:58AM2.06m | 9:57PM2.01m | 9:46AM1.91m | 10:29PM1.97m | 10:37AM1.75m | 11:00PM1.91m | 11:37AM1.59m | 11:34PM1.85m | 12:58PM1.48m | 00:16AM1.79m | 2:54PM1.46m | 1:15AM1.72m | ||||||||
Low Tide | 2:53PM0.18m | 3:11AM0.85m | 3:30PM0.35m | 3:56AM0.82m | 4:05PM0.55m | 4:44AM0.81m | 4:39PM0.76m | 5:35AM0.81m | 5:14PM0.96m | 6:36AM0.81m | 5:59PM1.14m | 7:50AM0.80m | 7:10PM1.29m | ||||||||
5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | |
— | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 29 | 29 | 28 | 29 | 29 | 28 | 30 | 30 | 29 | 29 | 30 | 28 | 29 | 29 | 27 | 28 | 29 | 28 | 28 | 28 | 27 |
Feels °C | 32 | 32 | 33 | 33 | 32 | 33 | 35 | 35 | 34 | 34 | 34 | 32 | 32 | 32 | 32 | 32 | 34 | 33 | 33 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 7 | W 7 | W 9 | W 8 | SW 8 | W 8 | W 7 | SW 7 | W 8 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | ENE 11 | ENE 10 | ENE 10 | ENE 10 |
11 | 38 | 35 | 73 | 54 | 39 | 54 | 37 | 34 | 43 | 34 | 32 | 17 | 16 | 18 | 12 | 10 | 24 | 22 | 20 | 19 | |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | ESE 9 | SW 8 | SW 8 | W 7 | SW 8 | SW 8 | W 7 | SW 7 | W 7 | W 6 | W 6 | W 6 | ENE 9 | W 6 | E 9 | SW 7 | SW 7 | SW 7 | SW 7 |
8 | 8 | 8 | 55 | 40 | 37 | 37 | 50 | 23 | 27 | 25 | 13 | 7 | 7 | 17 | 7 | 16 | 8 | 8 | 8 | 9 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | E 10 | SE 9 | SE 8 | W 9 | E 10 | E 10 | E 9 | E 10 | E 10 | ENE 10 | ENE 9 | ENE 9 | W 6 | ENE 9 | W 6 | W 6 | W 7 | W 6 | W 6 |
3 | 3 | 8 | 3 | 3 | 26 | 7 | 7 | 7 | 7 | 7 | 9 | 17 | 16 | 3 | 16 | 3 | 2 | 4 | 3 | 3 | |
Wind waves Height (m) Direction Period (s) | WSW 5 | SW 9 | SW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
39 | 93 | 43 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 691 | 657 | 66 | 27 | 52 | 10 | 10 | 12 | 12 | 10 | 52 | 27 | 52 | 52 | 27 | 52 | 27 | 13 | 24 | 28 | 28 |
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.










