Surf Forecasts:
Tengan surf forecast from 9 Jul 2026:
- Best quality surf: Friday 10 Jul, 9AM (local time) - 25ft (7.5m), 17s period, SE swell with onshore winds.
- Most powerful swell: Friday 10 Jul, 12PM (local time) - 26ft (8.0m), 17s period, SE swell with 39,157 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 9AM (local time) - 25ft (7.5m), 17s period with SE 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 (Jul 10) at 9AM. The primary swell is predicted to be 7.5m and 17s period with a secondary swell of 5.0m and 17s. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 8.0m 17s and forecast to arrive on Friday (Jul 10) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 8.0m 18s period and expected on Saturday (Jul 11) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Fri 10th Jul) | 25ft (7.5m) 17s |
| Best Surf | 9AM (Fri 10th Jul) | 25ft (7.5m) 17s |
| Most Powerful | 12PM (Fri 10th Jul) | 26ft (8.0m) 17s |
Table - best surf conditions forecast for Tengan over the next 16 days.
G’day, Rusty here, and I’ve got to be straight with you – the next two weeks are looking grim for a paddle. The only break on the radar is Tengan, a reef setup that’s inconsistent and best for beginners, but it’s not delivering anything rideable for a long stretch.
We kick off Thursday, July 9th, with a big 10ft SE swell rolling in, but it’s coming with a strong 30 km/h onshore wind from the ENE, so the surf is just a mess. The combined wave energy is pumping at 4295, but it’s all blown out. That swell builds to 16ft by Friday morning with 50 km/h onshore winds – that’s not a surf day, that’s a “stay on the beach” day. The conditions are poor right through the weekend and into the next week, with cross-onshore winds and tiny, weak waves. From Saturday, July 11th, through to Tuesday, July 15th, the swell drops to almost nothing – we’re talking 0.7ft to 2ft – with no energy to speak of.
The real kicker is that we’ve got a gap of about a week with no decent surf. The first real sign of life doesn’t show up until Sunday, July 19th. On Sunday afternoon, the wind shifts to a light cross-offshore from the SSW at 10 km/h, and a 2ft E swell rolls in with a period of 13 seconds. The combined energy is still low at 143, but the conditions are clean. It’s surfable, but tiny. Monday, July 20th, sees a bigger 3ft to 4ft E swell with a 14-second period, but the wind is onshore and choppy, so it’s not great.
The standout, if you can call it that, is actually Tuesday, July 21st. The morning brings a 5ft swell from the ENE with a 14-second period, and the combined energy hits 834 – moderate. The wind is onshore from the E at 25 km/h, but the period is long enough to offer some shape. Tengan is a reef, so it could handle that long-period swell, but the onshore wind will still mess it up. It’s not a classic, but it’s the best on offer in a very flat period.
For the rest of the run, the swell keeps bouncing around, but the wind never really cooperates. By Wednesday, July 22nd, we’ve got a 6ft N swell with a 11-second period, but the wind is a fresh cross-onshore from the SE at 35 km/h – that’s fresh and lumpy, only for the hardcore.
Water temp at Tengan is 84°F, which is about normal for this time of year – no surprises there.
Bottom line: if you’re desperate, Tuesday, July 21st morning is your best bet, but keep expectations low. Otherwise, it’s a long wait for anything worth paddling out for.
Rusty
Short Range ForecastHeavy rain (total 36mm), heaviest during Fri night. Warm (max 29°C on Thu afternoon, min 28°C on Thu night). Winds decreasing (gales from the SE on Fri night, fresh winds from the SSE by Sun morning). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sun afternoon. Warm (max 30°C on Mon afternoon, min 27°C on Tue night). Winds decreasing (fresh winds from the SSE on Sun afternoon, calm by Wed morning). | ||||||||||||||||||||
Thu 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 16 | SE 17 | SE 17 | E 10 | SSE 18 | SSE 18 | SSE 16 | SW 15 | SW 14 | E 8 | E 7 | S 10 | ESE 6 | E 9 | E 9 | E 9 | E 9 | SW 10 | E 9 | E 10 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5674 | 7297 | 33006 | 2326 | 0 | 0 | 0 | 0 | 0 | 44 | 25 | 0 | 44 | 7 | 6 | 6 | 6 | 0 | 6 | 8 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | cross | cross | cross | cross | glassy | glassy | cross | glassy |
High Tide | 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 | 7:25AM2.23m | ||||||||
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 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 |
 | 7:24 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:22 | — | 7:22 |
mm | — | 1 | 4 | 5 | 12 | 5 | 6 | 1 | 2 | 2 | 2 | 2 | — | — | — | — | — | — | 2 | — | 1 |
Temp °C | 29 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 29 |
Feels °C | 29 | 28 | 24 | 23 | 21 | 22 | 25 | 26 | 30 | 30 | 31 | 32 | 32 | 31 | 33 | 34 | 32 | 34 | 34 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SE 17 | SE 17 | SSE 18 | — | — | SW 16 | SW 15 | SW 14 | SW 12 | SW 11 | SW 10 | S 9 | SW 9 | S 8 | S 8 | S 8 | SW 10 | SW 10 | SW 10 | S 8 |
| kJ | 5674 | 7297 | 33006 | 13978 | — | — | 6625 | 6080 | 2609 | 993 | 422 | 160 | 241 | 41 | 142 | 112 | 46 | 49 | 61 | 48 | 29 |
Swell 2 Height (m) Direction Period (s) | — | S 18 | — | — | — | — | — | — | — | E 8 | W 10 | W 9 | SW 10 | W 8 | SW 9 | SW 10 | SW 10 | S 7 | S 8 | S 8 | SW 10 |
| kJ | — | 3002 | — | — | — | — | — | — | — | 44 | 133 | 61 | 77 | 12 | 43 | 47 | 63 | 23 | 29 | 29 | 33 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SE 14 | E 7 | SSW 10 | ESE 7 | E 9 | E 9 | E 9 | E 9 | SSW 10 | E 9 | E 10 | E 9 |
| kJ | — | — | — | — | — | — | — | — | — | 31 | 25 | 10 | 17 | 7 | 6 | 6 | 6 | 10 | 6 | 8 | 15 |
Wind waves Height (m) Direction Period (s) | ENE 5 | — | SE 17 | E 10 | SSE 18 | SSE 18 | SSE 16 | SSE 12 | SSE 12 | S 11 | S 10 | S 10 | ESE 6 | S 9 | SSE 8 | SSE 8 | — | — | — | — | — |
| kJ | 64 | — | 15029 | 2326 | 34771 | 40277 | 15194 | 3937 | 1551 | 878 | 400 | 326 | 44 | 188 | 151 | 102 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 647 | 875 | 621 | 737 | 1009 | 737 | 737 | 990 | 631 | 631 | 631 | 631 | 674 | 631 | 12 | 13 | 13 | 13 | 12 | 12 | 12 |
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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