Surf Forecasts:
Tengan surf forecast from 21 Jul 2026:
- Most powerful swell: Tuesday 28 Jul, 6AM (local time) - 13ft (4.0m), 10s period, SE swell with 3,231 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 4.0m 10s and forecast to arrive on Tuesday (Jul 28) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 11s period and expected on Tuesday (Jul 28) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Tue 28th Jul) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright folks, Rusty here.
Let’s be real: the next week and a half is a total bust. There’s a big gap of nothing but poor surf from the 21st of July all the way through the 1st of August. Tengan is a reef break that’s inconsistent, and this stretch proves it. Tiny waves, onshore junk, or just flat – don’t bother.
The water is about 83°, which is basically normal for this time of year.
Now, the one to get excited about is Sunday the 2nd of August. That morning, we’ve got a clean 7ft swell from the SE, with a very long period of 16 seconds. That’s real groundswell energy, and the combined energy is a huge 2566 – that’s strong. The wind is light offshore from the west, glassy, so the reef will be clean. The wave comment says it’s excellent for experienced surfers – and at 7ft, it’s too big for beginners. That long period means longer, cleaner waves on the reef, with easier paddling between sets.
The afternoon of the 2nd still has 10ft from the SE at 16 seconds, but the wind swings cross-off from the SSW at 12 mph, and the energy jumps to 4166. Still clean, but that’s big, powerful stuff. Only for the experts.
Monday the 3rd of August is pure chaos – near gale cross-shore winds and 16-20ft of absolute mayhem. No thanks.
So, the only standout is Sunday the 2nd of August morning. That’s your shot. After that, it’s back to small, cross-shore slop.
Rusty out.
Short Range ForecastMostly dry. Warm (max 30°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun morning. Warm (max 30°C on Fri afternoon, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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) | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SE 8 | ENE 10 | ENE 9 | ENE 9 | E 9 | ESE 15 | SE 4 | ESE 11 | SSE 10 | E 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 16 | 16 | 15 | 16 | 12 | 20 | 20 | 9 | 20 | 9 | 9 | 10 | 10 | 9 | 9 | 21 | 46 | 11 | 0 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | glassy | cross-off | glassy | glassy | glassy | cross-on | cross-on | glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:37AM1.59m | 11:34PM1.85m | 12:58PM1.48m | 00:16AM1.79m | 2:54PM1.46m | 1:15AM1.72m | 4:37PM1.55m | 2:31AM1.70m | 5:34PM1.66m | 3:45AM1.73m | 6:12PM1.76m | 4:41AM1.81m | 6:42PM1.84m | ||||||||
Low Tide | 5:14PM0.96m | 6:36AM0.81m | 5:59PM1.14m | 7:50AM0.80m | 7:10PM1.29m | 9:13AM0.75m | 9:00PM1.36m | 10:23AM0.67m | 10:28PM1.32m | 11:14AM0.57m | 11:21PM1.25m | 11:54AM0.48m | 11:59PM1.16m | ||||||||
 | |  | | | | | | | | | |  | |  | | | | | | | |
 | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 2 | — | — | 1 | — | 2 |
Temp °C | 29 | 30 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 33 | 34 | 33 | 35 | 34 | 33 | 34 | 34 | 33 | 33 | 35 | 32 | 31 | 32 | 32 | 32 | 31 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 7 | W 6 | SW 6 | SW 6 | W 6 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SE 8 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | E 9 | S 10 | ESE 11 | SW 12 | SSW 11 |
| kJ | 30 | 25 | 19 | 14 | 10 | 7 | 20 | 20 | 9 | 20 | 9 | 9 | 95 | 171 | 145 | 186 | 6 | 254 | 11 | 39 | 78 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | W 6 | W 6 | SW 6 | SW 7 | SW 7 | WSW 7 | W 5 | SSE 3 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | E 9 | SE 15 | SE 14 | SE 14 | SSW 10 | E 10 |
| kJ | 23 | 17 | 16 | 7 | 7 | 5 | 8 | 9 | 5 | 2 | 1 | 9 | 9 | 8 | 8 | 6 | 8 | 8 | 7 | 10 | 2 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | ENE 11 | W 6 | W 5 | W 6 | WSW 7 | W 5 | W 6 | SE 16 | SE 16 | SE 15 | SE 15 | ESE 15 | E 9 | E 9 | — | — |
| kJ | 8 | 16 | 16 | 15 | 16 | 12 | 6 | 2 | 3 | 5 | 2 | 2 | 10 | 10 | 9 | 9 | 21 | 2 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSE 3 | SE 3 | ESE 2 | ESE 3 | — | ESE 3 | ESE 3 | SSE 10 | SE 4 | SSE 10 | SSE 10 | SSE 10 |
| kJ | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 | 2 | — | 4 | 4 | 302 | 46 | 480 | 611 | 831 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 27 | 27 | 27 | 52 | 27 | 27 | 28 | 28 | 52 | 52 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 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.
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