Surf Forecasts:
Tengan surf forecast from 9 Jul 2026:
- Most powerful swell: Friday 10 Jul, 9AM (local time) - 16ft (5.0m), 18s period, SE swell with 16,929 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 5.0m 18s and forecast to arrive on Friday (Jul 10) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 7.5m 18s period and expected on Saturday (Jul 11) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Fri 10th Jul) | 16ft (5.0m) 18s |
Table - best surf conditions forecast for Tengan over the next 16 days.
Alright, Rusty here again, same story, different numbers.
Tengan is a reef break, inconsistent, and made for beginners. Water temp is about 84°F, which is right where it should be for the season.
We’re staring at a rough start. Thursday morning, a 10-foot swell from the southeast, hammered by a 19 mph onshore wind. It’s a total mess with a combined energy of 4295. Thursday afternoon gets worse – 12-foot swell, 22 mph onshore. Friday morning is a rainout, and Friday afternoon sees a mind-blowing 28-foot swell from the southeast with a 37 mph gale. The combined energy hits 65434. That’s just survival conditions, not surfing. The whole weekend and into the next week is a disaster of gale-force cross-onshore winds and storm risk, with zero surfable waves.
You’ve got a solid 10 days of nothing. From Friday the 10th until Tuesday the 19th, the only thing you’ll see is tiny 0.5-foot to 2-foot cross-shore slop, not worth getting wet for.
Then, on the morning of Thursday 24th July, we finally get a break. A 4-foot swell from the north, with a period of 8 seconds. The wind is glassy – dead calm, offshore. That’s the best news we’ve had. The combined energy is a weak 169, but the wave comment says "surfable waves but very ordinary conditions." The period is short, so it’s not gonna be a ripper, but after ten days of nothing, a clean little wave is a gift. The swell direction is north, close enough to the northeast optimum.
The standout: That Thursday morning, 24th July. It’s the only clean window in the whole 16-day forecast. It’s small, it’s weak, but it’s glassy. If you’re a beginner, that’s your ticket. Otherwise, this forecast is a long, hard slog.
Rusty.
Short Range ForecastHeavy rain (total 29mm), heaviest during Fri night. Warm (max 30°C on Thu morning, min 28°C on Thu night). Winds increasing (fresh winds from the ENE on Thu morning, gales from the E by Fri night). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Sun morning. Warm (max 30°C on Mon morning, min 28°C on Sun night). Winds decreasing (fresh winds from the SSE on Sun morning, calm by Tue night). | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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) | SE 16 | SE 16 | SE 17 | SE 18 | E 9 | SSE 18 | S 18 | SSE 16 | SW 15 | SW 13 | E 8 | SE 13 | SSE 4 | ESE 6 | ESE 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4295 | 6334 | 7297 | 16929 | 1935 | 0 | 0 | 0 | 0 | 0 | 29 | 7 | 7 | 13 | 7 | 6 | 6 | 6 | 6 | 6 | 16 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | glassy | glassy | glassy |
High Tide | 1:54PM1.55m | 1:30AM1.84m | 3:38PM1.63m | 2:39AM1.87m | 4:56PM1.77m | 3:47AM1.96m | 5:55PM1.92m | 4:48AM2.06m | 6:44PM2.03m | 5:44AM2.16m | 7:28PM2.09m | 6:36AM2.22m | 8:09PM2.11m | ||||||||
Low Tide | 7:11PM1.10m | 8:44AM0.59m | 8:43PM1.20m | 9:56AM0.43m | 10:08PM1.21m | 10:58AM0.25m | 11:14PM1.17m | 11:53AM0.11m | 00:08AM1.09m | 12:43PM0.01m | 00:56AM1.02m | 1:30PM-0.00m | 1:41AM0.95m | ||||||||
 | |  |  | | | | | | | |  | | |  |  | | | | | | |
 | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — |
 | — | 7:24 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:22 | — |
mm | — | — | 1 | 4 | 4 | 11 | 4 | 4 | 1 | 4 | 1 | 3 | — | — | — | — | — | — | — | 1 | — |
Temp °C | 30 | 30 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 |
Feels °C | 30 | 30 | 28 | 24 | 23 | 21 | 23 | 26 | 27 | 29 | 30 | 31 | 32 | 32 | 31 | 34 | 34 | 32 | 35 | 35 | 33 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SE 16 | S 18 | SE 18 | SSE 18 | — | — | SW 17 | SW 15 | SW 13 | SW 12 | SW 11 | SSE 10 | S 9 | S 9 | S 8 | S 8 | S 8 | SW 10 | SW 10 | SW 10 |
| kJ | 4295 | 6334 | 2744 | 16929 | 15038 | — | — | 6261 | 6817 | 2310 | 895 | 332 | 288 | 234 | 127 | 89 | 86 | 46 | 63 | 49 | 69 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | E 8 | W 10 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 10 | S 8 | S 8 | S 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | 29 | 100 | 133 | 77 | 41 | 47 | 47 | 64 | 29 | 18 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 13 | W 10 | W 9 | ESE 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 7 | 46 | 28 | 7 | 6 | 6 | 6 | 6 | 6 | 16 |
Wind waves Height (m) Direction Period (s) | — | — | SE 17 | — | E 9 | SSE 18 | S 18 | SSE 16 | SSE 13 | SSE 12 | S 11 | SSE 10 | SSE 4 | ESE 6 | SE 3 | SE 3 | — | — | — | — | — |
| kJ | — | — | 7297 | — | 1935 | 34195 | 36571 | 14137 | 3440 | 1517 | 1068 | 562 | 7 | 13 | 2 | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 647 | 875 | 621 | 737 | 737 | 737 | 737 | 990 | 647 | 647 | 631 | 631 | 679 | 972 | 635 | 657 | 13 | 13 | 13 | 66 | 13 |
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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