Surf Forecasts:
Tengan surf forecast from 31 Jul 2026:
- Best quality surf: Thursday 6 Aug, 6PM (local time) - 25ft (7.5m), 11s period, NW swell with cross-offshore winds.
- Most powerful swell: Thursday 6 Aug, 9PM (local time) - 23ft (7.0m), 14s period, N swell with 19,377 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3PM (local time) - 1.5ft (0.5m), 17s period with E 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 Sunday (Aug 02) at 3PM. The primary swell is predicted to be 0.5m and 17s period with a secondary swell of 0.2m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 7.0m 14s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 8.0m 12s period and expected on Friday (Aug 07) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 2nd Aug) | 1.5ft (0.5m) 17s |
| Best Surf | 6PM (Thu 6th Aug) | 25ft (7.5m) 11s |
| Most Powerful | 9PM (Thu 6th Aug) | 23ft (7.0m) 14s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s have a look at what’s cookin’ for Tengan.
To be straight with you, the next 16 days are a real mixed bag, and honestly, pretty bleak for a long stretch. There’s a big gap of nothing worthwhile at the start. The first real blip of surfable energy doesn’t show up until Sunday afternoon, the 2nd of August, but it’s small and messy. After that, the swell builds, but the wind just ruins it. We’ve got a monster swell rolling through mid-week, but it’s going to be a total washout for paddling. The only standout window where it all comes together is Thursday the 13th of August, and that’s a long way off, so keep your fingers crossed.
Tengan (reef) – The first sign of life is Sunday afternoon, 2nd August, with a weak 2ft east swell and a very long 17-second period. The energy is moderate (159), but it’s a clean cross-off breeze, so the surface will be smooth. The long period means better shape, but it’s still tiny. Not a standout.
Monday the 3rd and Tuesday the 4th see the swell climb to 3ft to 5ft, east, with a long period (15-18 seconds), but the wind is cross-shore or cross-onshore, putting chop on the face. The water is a touch warmer than normal at 86°F. The combined energy gets strong (303 to 1044), but it’s messy. Not the one.
Then things get wild. Wednesday the 5th, the swell jumps to 8ft from the east, period 19 seconds, but a fresh cross-onshore breeze makes it choppy. By Thursday the 6th, we’re talking 15ft to 23ft of east-northwest swell with violent storm-force winds. The energy is off the charts (17282 to 19912), but it’s just a raging, unsurfable mess. This is kite-surfing territory, not paddling. After that, it all drops off into tiny, choppy junk for over a week.
The only real highlight is Thursday, 13th August. The morning session at Tengan has a clean 3ft east swell, period 13 seconds, with a light cross-off breeze from the SSW. The energy is moderate (268), and the setup is clean and glassy. This is your best bet for a proper surf. The afternoon is still okay but a little smaller at 3ft with a light breeze.
That’s the long-range promise, but it’s a two-week wait. The rest of the run is either flat, blown out, or way too big and dangerous. The forecast is less certain that far out, so don’t book the trip just yet.
- Rusty
Short Range ForecastMostly dry. Warm (max 30°C on Fri morning, min 27°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Wed night. Warm (max 31°C on Mon morning, min 28°C on Mon night). Winds increasing (light winds from the N on Mon morning, gales from the NNW by Wed night). | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 9 | E 9 | E 9 | SE 11 | SE 9 | E 19 | E 17 | ESE 16 | ESE 15 | ESE 16 | E 18 | E 18 | E 19 | E 18 | E 19 | E 19 | E 19 | E 20 | NNW 11 | N 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 6 | 6 | 6 | 5 | 3 | 29 | 151 | 259 | 300 | 406 | 803 | 1044 | 1533 | 2345 | 3588 | 5674 | 8531 | 14443 | 10866 | 13313 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:22PM2.04m | 7:50AM2.12m | 8:47PM2.06m | 8:26AM2.07m | 9:13PM2.06m | 9:06AM1.99m | 9:41PM2.04m | 9:50AM1.87m | 10:10PM2.00m | 10:43AM1.73m | 10:45PM1.94m | 11:55AM1.60m | 11:32PM1.88m | ||||||||
Low Tide | 1:52PM0.26m | 2:04AM0.82m | 2:20PM0.30m | 2:38AM0.76m | 2:49PM0.38m | 3:14AM0.71m | 3:18PM0.52m | 3:54AM0.69m | 3:50PM0.69m | 4:40AM0.68m | 4:26PM0.88m | 5:37AM0.69m | 5:13PM1.09m | ||||||||
 | |  | | | | | | |  | |  | | | | | |  | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | 5 | 1 | 2 | — | — | — | 7 | 24 | 102 | 141 |
Temp °C | 30 | 30 | 29 | 29 | 29 | 28 | 30 | 30 | 29 | 31 | 31 | 29 | 30 | 30 | 29 | 31 | 30 | 30 | 28 | 29 | 29 |
Feels °C | 35 | 34 | 34 | 33 | 33 | 32 | 34 | 34 | 33 | 34 | 33 | 32 | 33 | 33 | 32 | 32 | 29 | 29 | 20 | 17 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | E 16 | E 17 | ESE 16 | ESE 15 | ESE 16 | E 18 | E 18 | E 19 | E 18 | E 19 | E 19 | E 19 | E 20 | ENE 18 | N 14 |
| kJ | 10 | 10 | 10 | 11 | 3 | 3 | 19 | 151 | 259 | 300 | 406 | 803 | 1044 | 1533 | 2345 | 3588 | 5674 | 8531 | 14443 | 7660 | 13313 |
Swell 2 Height (m) Direction Period (s) | SE 9 | E 9 | E 9 | E 9 | E 9 | SE 9 | E 19 | ESE 9 | SW 7 | SW 7 | S 7 | SW 7 | S 9 | S 9 | SE 8 | — | — | — | — | NNE 11 | ENE 14 |
| kJ | 3 | 6 | 6 | 6 | 2 | 3 | 29 | 8 | 2 | 2 | 1 | 2 | 6 | 6 | 31 | — | — | — | — | 1386 | 258 |
Swell 3 Height (m) Direction Period (s) | E 10 | SE 10 | SE 9 | SE 11 | SE 11 | E 9 | SW 8 | WSW 8 | S 7 | S 7 | — | SW 7 | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 4 | 3 | 5 | 5 | 2 | 3 | 6 | 1 | 1 | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 3 | N 3 | N 4 | N 5 | N 5 | ESE 8 | ESE 8 | — | NNE 6 | N 9 | NNW 11 | W 12 |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 5 | 14 | 22 | 17 | 26 | 23 | — | 312 | 2839 | 10866 | 16928 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 757 | 875 | 980 | 1346 | 1400 | 648 | 11 | 0 | 23 | 23 | 27 | 25 | 23 | 23 | 12 | 805 | 745 | 621 | 805 | 745 | 745 |
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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