Surf Forecasts:
Tengan surf forecast from 21 Jul 2026:
- Most powerful swell: Friday 24 Jul, 9PM (local time) - 2ft (0.6m), 7s period, SE swell with 34 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 0.6m 7s and forecast to arrive on Friday (Jul 24) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 12s period and expected on Wednesday (Jul 29) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Fri 24th Jul) | 2ft (0.6m) 7s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, Rusty here, giving you the lowdown on the local surf. Gotta be honest, the next week or so is pretty flat, so don’t rush to the beach. We’ve got a 16-day outlook, but the first real chance to surf doesn’t show up until early August.
The only break we’re looking at is Tengan. It’s a reef break, good for beginners, but it’s inconsistent, so it doesn’t break often. The water’s about 83°, which is normal for the season.
From July 22nd through the end of the month, the waves are tiny – just 1ft or less. The swell energy is weak, with numbers like 16 or 20, so there’s no power. The wind is mostly messy, with cross-onshore breezes making it choppy. Not worth your time.
The first hint of something is Sunday, August 2nd. The swell picks up to 3ft from the east, with a 18-second period, giving it some real groundswell grunt. The energy jumps to 509 (moderate). But the wind is onshore and fresh at 18 mph, so it’s going to be lumpy.
The standout window is Monday, August 3rd into Tuesday, August 4th. The swell hits 4ft from the east, with a 17-second period, and the energy goes up to 984 and 1010 (strong). Monday’s wind is still a mess – strong cross-onshore at 21 mph. But on Tuesday, August 4th, the wind switches to a cross-offshore breeze from the SSW, at 21 mph in the morning and 15 mph in the afternoon. The swell is still a solid 3ft to 4ft, with that long 16-second period, and the energy is strong (620 and 498). That’s your best bet: clean conditions, decent size, and a proper long-period groundswell. It’s a bit big for beginners, but for the experienced, it’s the pick of the period.
After that, into August 5th and 6th, the swell drops to 2ft to 3ft, with cleaner offshore winds, but the energy is moderate (159 to 292). It’s surfable, but nothing exciting.
So, to wrap it up: a long flat spell, but keep your eyes on August 4th for the best chance of clean, punchy waves.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed afternoon. Warm (max 30°C on Thu morning, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 30°C on Sat morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 | E 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SE 7 | ENE 10 | ENE 9 | ESE 10 | SE 10 | SE 11 | ESE 2 | SE 10 | SE 11 | SE 10 | SE 10 | ESE 10 | ESE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 15 | 12 | 20 | 20 | 9 | 19 | 9 | 32 | 9 | 10 | 10 | 16 | 18 | 1 | 17 | 18 | 17 | 16 | 19 | 19 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 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 | 5:26AM1.91m | 7:08PM1.91m | ||||||||
Low Tide | 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 | 12:27PM0.39m | 00:30AM1.07m | ||||||||
 |  |  | | | | | | | | | | | | | | |  | | |  | |
 | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 7:21 | — | — | 7:21 | — | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | 1 |
Temp °C | 29 | 29 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 34 | 34 | 33 | 34 | 35 | 32 | 33 | 33 | 32 | 34 | 33 | 32 | 33 | 33 | 31 | 31 | 31 | 31 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | W 6 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SE 7 | SSE 9 | SSE 9 | SSE 8 | S 8 | S 9 | S 10 | S 9 | SSE 8 | S 8 | S 9 | S 10 | S 12 |
| kJ | 14 | 10 | 7 | 20 | 20 | 9 | 19 | 9 | 32 | 70 | 94 | 57 | 46 | 56 | 50 | 59 | 57 | 33 | 78 | 153 | 747 |
Swell 2 Height (m) Direction Period (s) | W 6 | E 9 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SE 9 | ENE 10 | ENE 10 | ENE 9 | ESE 10 | SSW 9 | SW 8 | SW 11 | SW 10 | SW 9 | SE 10 | SE 10 | ESE 10 | ESE 10 |
| kJ | 6 | 15 | 5 | 9 | 9 | 2 | 2 | 3 | 9 | 9 | 8 | 10 | 8 | 18 | 30 | 34 | 13 | 17 | 16 | 19 | 19 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | W 6 | ENE 11 | W 6 | W 5 | SE 10 | SE 9 | SW 7 | SE 11 | SE 11 | SE 16 | ENE 9 | SE 10 | SE 11 | SW 8 | SE 10 | SE 11 | WSW 9 | SW 8 | SW 8 | SE 13 |
| kJ | 16 | 6 | 12 | 2 | 2 | 4 | 3 | 2 | 5 | 5 | 10 | 8 | 16 | 18 | 15 | 17 | 18 | 7 | 3 | 3 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 2 | SE 4 | — | ESE 3 | — | — | — | — | ESE 2 | — | ESE 4 | ESE 3 | ESE 3 | ESE 4 | — |
| kJ | — | — | — | — | — | — | 1 | 4 | — | 1 | — | — | — | — | 1 | — | 7 | 1 | 1 | 7 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 27 | 40 | 52 | 28 | 28 | 52 | 679 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 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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