Surf Forecasts:
Tengan surf forecast from 8 Jul 2026:
- Most powerful swell: Friday 10 Jul, 12PM (local time) - 18ft (5.5m), 18s period, SE swell with 19,507 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 5.5m 18s 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 7.5m 18s period and expected on Friday (Jul 10) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Fri 10th Jul) | 18ft (5.5m) 18s |
Table - best surf conditions forecast for Tengan over the next 16 days.
Alright, Rusty here. Let's get into it.
Look, I've been staring at the charts for Tengan and it's a pretty bleak picture for a good long while. This reef break is just not getting any love from the conditions. We've got a solid week and a half of nothing worth paddling out for, with a lot of blown-out, stormy slop.
The first real blip of swell doesn't show up until Tuesday, July 22nd, but even then it's a mess. The water temp feels about average for the time of year here in Tengan, so no real surprises there.
Right now, the forecast is a total write-off all the way through to the end of the third week. From Thursday, July 18th, we finally see the wind go glassy on Friday morning, but the swell is tiny, barely 1 ft of weak, short-period windswell. The combined energy is a measly 17, so you're just floating around.
The only thing that even looks like it might have some push is Tuesday, July 22nd into Wednesday, July 23rd. We get a pulse of groundswell coming in from the ENE at 5 ft to 6 ft with a period of 11 to 14 seconds. That's decent energy, with readings in the 700 to 800 range. However, it's all wrapped in cross-onshore wind from the NE, making it choppy and hard to surf. While the swell size is good, the wind is ruining it. It's not going to be clean. Given it's a reef, the longer period might make for some shapely walls if the wind weren't a factor. For a beginner, 6 ft is getting a bit big, but the cross-offshore wind is a big downside for everyone.
Honestly, there's not a single standout in this 16-day window worth getting excited about. The surf quality is consistently poor. Keep your board in the car for a while and just watch the horizon. No kitesurfing potential here either, just bad wind direction for that too.
Rusty.
Short Range ForecastHeavy rain (total 26mm), heaviest during Fri night. Warm (max 30°C on Thu morning, min 28°C on Wed night). Winds increasing (moderate winds from the ENE on Wed night, gales from the ESE by Fri night). | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Sun night. Warm (max 30°C on Mon morning, min 28°C on Sun night). Winds decreasing (strong winds from the SE on Sat night, light winds from the SE by Tue morning). | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wed 15 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 16 | SE 16 | SE 16 | SE 17 | SE 18 | SE 18 | SSE 18 | SE 12 | SSE 14 | SW 16 | SSE 12 | SE 14 | SE 13 | SSE 10 | ESE 6 | ESE 6 | E 9 | E 9 | E 9 | E 9 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2761 | 4295 | 5406 | 7658 | 18200 | 0 | 0 | 4168 | 0 | 0 | 0 | 8 | 7 | 0 | 33 | 14 | 6 | 6 | 6 | 14 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | 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 | on | on | on |
High Tide | 00:30AM1.84m | 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 | ||||||||
Low Tide | 7:27AM0.72m | 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 | ||||||||
 |  | |  |  | | | | | | | | | | | | | |  | | | |
 | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — |
 | 7:24 | — | 7:24 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:22 |
mm | — | — | — | 2 | 2 | 4 | 9 | 4 | 5 | 1 | 3 | 2 | 7 | 1 | — | — | — | — | — | — | 1 |
Temp °C | 28 | 30 | 30 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 30 | 30 | 28 | 30 | 30 |
Feels °C | 29 | 30 | 30 | 28 | 25 | 23 | 23 | 23 | 26 | 27 | 29 | 30 | 31 | 32 | 32 | 32 | 33 | 33 | 32 | 34 | 34 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SE 16 | SE 16 | SE 17 | SE 18 | — | — | S 18 | SSW 16 | SW 16 | SW 13 | SW 12 | SW 10 | SW 10 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | SSW 8 |
| kJ | 2761 | 4295 | 5406 | 7658 | 18200 | — | — | 22023 | 6731 | 6877 | 1904 | 772 | 216 | 113 | 202 | 130 | 113 | 86 | 61 | 43 | 47 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSE 18 | — | — | — | — | — | S 13 | SSW 12 | SW 12 | W 10 | WSW 9 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 |
| kJ | — | — | — | 3092 | — | — | — | — | — | 499 | 198 | 379 | 74 | 29 | 79 | 45 | 49 | 35 | 36 | 37 | 35 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 14 | SE 13 | SSW 10 | W 9 | W 8 | E 9 | E 9 | E 9 | E 9 | E 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 8 | 7 | 10 | 15 | 5 | 6 | 6 | 6 | 14 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 5 | — | — | SE 18 | SSE 18 | SE 12 | SSE 14 | SSE 13 | SSE 12 | SSE 11 | SSE 10 | SSE 10 | ESE 6 | ESE 6 | — | — | — | — | — |
| kJ | — | — | 61 | — | — | 23226 | 30474 | 4168 | 10397 | 4086 | 1671 | 1027 | 647 | 348 | 33 | 14 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 12 | 647 | 875 | 621 | 737 | 737 | 737 | 737 | 1096 | 647 | 631 | 647 | 10 | 636 | 635 | 13 | 12 | 12 | 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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