Surf Forecasts:
Tengan surf forecast from 10 Jul 2026:
- Best quality surf: Friday 10 Jul, 9PM (local time) - 21ft (6.5m), 17s period, SE swell with onshore winds.
- Most powerful swell: Saturday 11 Jul, 12AM (local time) - 25ft (7.5m), 18s period, SE swell with 31,670 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 9PM (local time) - 21ft (6.5m), 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 9PM. The primary swell is predicted to be 6.5m and 17s period. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 7.5m 18s and forecast to arrive on Saturday (Jul 11) at 12AM. 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 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 10th Jul) | 21ft (6.5m) 17s |
| Best Surf | 9PM (Fri 10th Jul) | 21ft (6.5m) 17s |
| Most Powerful | 12AM (Sat 11th Jul) | 25ft (7.5m) 18s |
Table - best surf conditions forecast for Tengan over the next 16 days.
Alright, this is Rusty, and I gotta be straight with you. Right now, and for a good long while, we’ve got essentially nothing to work with. The whole 16-day window is pretty much a write-off for a proper paddle session.
The first real bit of energy shows up on Friday the 18th of July, but there’s a massive gap before that. From now until the 17th, it’s a total flat spell or just tiny, wind-affected slop. The water temp is sitting around 84°, which is pretty much average for this time of year.
Now, even when that swell finally arrives, the conditions are a mess. The only spot on the menu is Tengan, a reef break that’s inconsistent and generally for beginners. The problem is, the wind is a disaster.
On Friday the 18th of July, we see a jump in energy with a strong SE swell. The combined energy hits 469 (moderate) in the morning, building to 808 (moderate) by the afternoon. The swell is around 7ft to 8ft from the ESE, with a short period of 7-9 seconds. That’s a lot of wind-slop, not a clean groundswell. On top of that, the wind is honking from the ENE at 28 mph, swinging to a near-gale from the ESE at 37 mph. It’s going to be a choppy, messy, blown-out scene. For a beginner reef, this is a no-go.
Saturday the 19th of July doesn’t get much better. Swell holds around 7ft to 8ft, but it’s still ESE windswell, and the wind is a strong cross-onshore, making it lumpy. The combined energy peaks at 1151 (moderate to strong) in the afternoon, but it’s all noise.
By Sunday the 20th, the swell drops a bit to 6ft, but the onshore wind persists. The setup is just too rough and too windy for a nice ride on a reef. It’s honestly more of a kite-surfing kind of window than a paddle-surfing one.
The tail end of the forecast, from the 22nd of July onward, drops back into tiny, weak surf with no real quality. There’s a brief moment on Wednesday the 15th of July where the wind goes glassy, but the swell is a pathetic 0.7ft, so it’s not worth a paddle.
Bottom line: there’s no standout day here. The consistent, clean surf you’re after just isn’t on the cards. It’s a rough patch, but it won’t stay like this forever.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Fri night. Warm (max 29°C on Fri morning, min 27°C on Fri afternoon). Winds decreasing (severe gales from the SE on Fri night, moderate winds from the SSE by Sun night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 30°C on Mon morning, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
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 17 | SE 18 | SE 18 | SSE 17 | SSE 15 | SSE 13 | SW 13 | SW 12 | SE 4 | S 10 | E 9 | E 9 | E 9 | SSE 8 | S 8 | E 9 | ESE 11 | E 9 | E 10 | E 10 | E 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 13701 | 18981 | 31670 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 7 | 7 | 7 | 0 | 0 | 6 | 11 | 6 | 8 | 7 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross-off | glassy | cross | on | on | on |
High Tide | 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 | 8:48PM2.09m | ||||||||
Low Tide | 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 | 2:13PM0.05m | 2:26AM0.90m | ||||||||
 |  |  | | |  | | | |  | |  |  | | | | | | | |  | |
 | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — |
 | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — |
mm | 2 | 6 | 12 | 3 | 5 | — | 3 | 1 | — | — | — | — | — | — | — | — | 2 | 1 | — | — | 3 |
Temp °C | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 25 | 21 | 20 | 21 | 23 | 26 | 29 | 30 | 31 | 32 | 32 | 30 | 33 | 33 | 33 | 34 | 34 | 33 | 33 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SE 17 | — | — | — | SSW 16 | SW 13 | SW 13 | SW 12 | S 10 | SW 10 | SW 9 | SW 9 | SW 10 | S 8 | S 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SW 9 | SW 9 |
| kJ | 13701 | — | — | — | 6330 | 2369 | 2600 | 1148 | 392 | 117 | 67 | 40 | 44 | 136 | 86 | 62 | 60 | 67 | 33 | 54 | 84 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 12 | W 12 | SW 11 | W 9 | W 10 | W 8 | W 7 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | S 7 | E 10 |
| kJ | — | — | — | — | — | — | 232 | 350 | 399 | 38 | 47 | 12 | 9 | 42 | 34 | 35 | 35 | 35 | 34 | 28 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 10 | W 11 | E 9 | E 9 | E 9 | W 7 | W 6 | E 9 | ESE 11 | E 9 | E 10 | E 10 | ESE 9 |
| kJ | — | — | — | — | — | — | — | — | 172 | 62 | 7 | 7 | 7 | 4 | 3 | 6 | 11 | 6 | 8 | 7 | 8 |
Wind waves Height (m) Direction Period (s) | — | SE 18 | SE 18 | SSE 17 | SSE 15 | SSE 13 | SSE 12 | SSE 11 | SE 4 | S 10 | SSE 9 | S 9 | S 8 | SSE 8 | S 8 | S 8 | — | — | — | — | SE 3 |
| kJ | — | 18981 | 31670 | 38302 | 15420 | 4772 | 1499 | 990 | 16 | 405 | 333 | 224 | 171 | 172 | 182 | 148 | — | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 737 | 875 | 737 | 737 | 990 | 621 | 621 | 631 | 613 | 52 | 10 | 636 | 13 | 13 | 13 | 13 | 12 | 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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