Surf Forecasts:
Tengan surf forecast from 22 Aug 2026:
- Most powerful swell: Tuesday 25 Aug, 9AM (local time) - 10ft (3.0m), 17s period, E swell with 5,088 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 3.0m 17s and forecast to arrive on Tuesday (Aug 25) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 9s period and expected on Wednesday (Aug 26) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9AM (Tue 25th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, let’s break it down the other way.
Righto, I’m a bit bummed to say it, but the forecast for Tengan is looking pretty flat for a proper paddle. The first few days are a total loss, with tiny, messy waves and cross-onshore winds. Sunday the 23rd and Monday the 24th see a bit of swell, but it’s weak and choppy, with combined energy stuck down around 41 to 588 (weak to moderate). Not worth getting wet.
Tuesday the 25th is where things get a bit more interesting, but it’s a mixed bag. The swell jumps up to 10ft from the east with a solid 17-second period, giving a combined energy of 5088 (strong). That’s proper groundswell energy, but the wind is cross-shore in the morning and cross-off in the afternoon, so it’s not completely clean. The water’s sitting at 84°, which is about average for this time of year. This is for the experts only, though – 10ft is too much for beginners.
The rest of the week and into the next is a lot of wind and chop. Wednesday the 26th has solid swell, but near gale-force winds make it a no-go for paddle surfing. Honestly, with that much wind and energy, a kite surfer would be in heaven, but for us? Forget it.
We’ve got a proper gap of poor surf until Monday the 7th of September. That’s over a week of nothing. On the 7th, we finally see a 6ft swell from the northwest with a 9-second period and light cross-shore winds. Combined energy is 535 (moderate). It’s still marginal, but it’s the best we’ve got in the whole outlook. The break itself is a reef, inconsistent, and only a beginner-level spot. If you’re desperate, you might find a few, but don’t expect much.
So, the only real standout, if you can call it that, is Tuesday the 25th for the sheer size and energy, but only if you’re an expert and can handle the cross-shore. The 7th of September is a distant second, with cleaner conditions but smaller, less powerful waves.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Warm (max 29°C on Mon afternoon, min 27°C on Sun night). Winds increasing (light winds from the E on Sun night, gales from the WNW by Tue night). | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Wed night. Warm (max 29°C on Fri morning, min 27°C on Wed afternoon). Winds decreasing (near gales from the W on Wed morning, light winds from the SE by Fri night). | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
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 14 | SSE 4 | ESE 12 | ESE 16 | ESE 15 | ESE 18 | E 17 | E 16 | E 15 | NNE 12 | NNW 11 | E 11 | E 13 | E 8 | E 9 | ESE 8 | E 9 | E 9 | ESE 8 | ESE 8 | ESE 7 |
Wave Graph | |||||||||||||||||||||
37 | 24 | 30 | 220 | 539 | 2552 | 5088 | 4117 | 3430 | 3293 | 4832 | 20 | 13 | 46 | 108 | 120 | 130 | 171 | 183 | 123 | 132 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross-on | cross | cross-off | cross-off | off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 5:20PM1.67m | 3:33AM1.68m | 5:47PM1.78m | 4:32AM1.81m | 6:10PM1.88m | 5:13AM1.94m | 6:32PM1.97m | 5:49AM2.06m | 6:54PM2.05m | 6:24AM2.15m | 7:16PM2.11m | 6:59AM2.19m | 7:39PM2.15m | ||||||||
Low Tide | 10:03AM0.76m | 10:24PM1.33m | 10:55AM0.64m | 11:07PM1.21m | 11:31AM0.52m | 11:38PM1.07m | 12:00PM0.41m | 00:07AM0.94m | 12:28PM0.33m | 00:36AM0.80m | 12:54PM0.29m | 1:06AM0.68m | 1:22PM0.30m | 1:38AM0.57m | |||||||
6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | |
mm | — | — | — | 1 | — | — | — | — | 6 | 1 | 2 | 6 | 4 | 4 | — | 1 | — | 1 | 1 | 1 | — |
Temp °C | 28 | 28 | 27 | 28 | 29 | 27 | 29 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 29 | 28 |
Feels °C | 30 | 29 | 29 | 31 | 31 | 30 | 30 | 29 | 25 | 22 | 24 | 25 | 26 | 27 | 29 | 31 | 31 | 31 | 30 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SW 9 | SW 9 | ESE 15 | ESE 18 | E 17 | E 16 | E 15 | NNE 12 | NNW 11 | WNW 10 | WSW 10 | E 8 | SW 12 | SW 11 | SW 10 | SW 11 | SW 11 | SW 10 | SW 10 |
457 | 363 | 188 | 93 | 539 | 2552 | 5088 | 4117 | 3430 | 3293 | 4832 | 1908 | 1905 | 46 | 2196 | 935 | 659 | 664 | 572 | 266 | 136 | |
Swell 2 Height (m) Direction Period (s) | E 14 | ESE 13 | ESE 12 | ESE 16 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | E 11 | E 11 | E 13 | E 13 | E 16 | E 15 | E 9 | E 9 | ENE 13 | S 10 | S 9 |
37 | 17 | 30 | 220 | 79 | 79 | 64 | 37 | 37 | 39 | 39 | 20 | 13 | 13 | 5 | 17 | 130 | 171 | 17 | 138 | 83 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | E 9 | E 8 | SE 9 | ENE 10 | ENE 10 | — | — | — | SSW 9 | SE 10 | E 13 | — | E 18 | SE 15 | SE 10 | E 15 | — | — | ENE 13 | ENE 12 |
4 | 6 | 5 | 3 | 11 | 19 | — | — | — | 53 | 4 | 14 | — | 6 | 8 | 4 | 17 | — | — | 17 | 15 | |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 4 | ESE 4 | E 4 | E 6 | ENE 7 | — | NNE 5 | N 7 | NW 8 | W 9 | SSW 9 | SSE 8 | SSW 11 | E 9 | ESE 8 | — | SE 4 | ESE 8 | ESE 8 | ESE 7 |
78 | 24 | 13 | 12 | 38 | 57 | — | 93 | 495 | 1323 | 2454 | 3775 | 1072 | 2664 | 108 | 120 | — | 22 | 183 | 123 | 132 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 13 | 13 | 12 | 37 | 621 | 621 | 737 | 621 | 635 | 737 | 742 | 732 | 13 | 621 | 10 | 13 | 13 | 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.











