Surf Forecasts:
Tengan surf forecast from 18 Jul 2026:
- Most powerful swell: Thursday 23 Jul, 3AM (local time) - 1ft (0.3m), 11s period, ENE swell with 24 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 0.3m 11s and forecast to arrive on Thursday (Jul 23) at 3AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 8s period and expected on Sunday (Jul 19) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3AM (Thu 23rd Jul) | 1ft (0.3m) 11s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at what’s coming up for Tengan, a reef setup that’s exposed to swell from the NE. Honestly, right through this 16-day window, it’s a quiet stretch – the kind where you’d be better off checking the windsurfing gear or just sitting on the beach with a cold one. The water temp is bang on average for this time of year, so no surprises there.
The only flicker of something worth paddling out for lands on Wednesday the 29th of July. Even then, it’s only a marginal call. The morning sees a 3-foot easterly swell with a long period of 13 seconds – that’s groundswell energy, but it’s carrying just 394 units of combined energy (moderate) and the break is a reef, so that longer period should wrap in nicely. The wind is offshore from the west at 22 mph, which will keep things clean. The afternoon holds similar, with 3 feet at 12 seconds (362 combined energy) and still offshore from the west at 19 mph. It’s a short window, the swell is small, and this spot is inconsistent, so don’t expect it to be pumping. But if you’re keen, that Wednesday morning is the only real shout.
The rest of the period is a write-off. Waves are tiny – mostly 0.7 to 1 foot – with a mix of glassy and cross-off winds, but the combined energy rarely breaks 30 (weak). The surf conditions are poor throughout. Even when the swell bumps up to 4 feet on the 28th, the wind is howling cross-shore from the north at 25 mph, making it a messy, lumpy mess. The 27th has a bigger pulse of 3 feet at 16 seconds (386 combined energy), but it’s cross-shore wind at 19 mph, so it’s choppy and not worth the paddle.
From the 30th onward, the swell drops right off again, with tiny 1-foot to 0.7-foot waves and moderate offshore winds – clean but powerless. The 1st of August is practically flat. The 2nd and 3rd aren’t any better. Honestly, for a spot that’s already inconsistent, this is a bleak run. If you’re desperate, Wednesday the 29th is your only chance, and even then, keep expectations low.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 27°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Thu morning. Warm (max 29°C on Wed morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 10 | E 9 | E 9 | E 10 | E 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | E 9 | ENE 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 7 | 7 | 7 | 7 | 7 | 7 | 9 | 8 | 16 | 16 | 15 | 16 | 12 | 20 | 21 | 19 | 19 | 19 | 9 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | glassy | cross-off | glassy | glassy | glassy | glassy | cross-on | cross | cross-on |
High Tide | 9:57PM2.01m | 9:46AM1.91m | 10:29PM1.97m | 10:37AM1.75m | 11:00PM1.91m | 11:37AM1.59m | 11:34PM1.85m | 12:58PM1.48m | 00:16AM1.79m | 2:54PM1.46m | 1:15AM1.72m | 4:37PM1.55m | 2:31AM1.70m | ||||||
Low Tide | 3:56AM0.82m | 4:05PM0.55m | 4:44AM0.81m | 4:39PM0.76m | 5:35AM0.81m | 5:14PM0.96m | 6:36AM0.81m | 5:59PM1.14m | 7:50AM0.80m | 7:10PM1.29m | 9:13AM0.75m | 9:00PM1.36m | |||||||
 |  |  | | | |  | | | | | | |  | | | | |  | |
 | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — |
 | 7:22 | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | 2 | 1 |
Temp °C | 28 | 30 | 30 | 28 | 30 | 30 | 29 | 29 | 29 | 27 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 27 |
Feels °C | 33 | 34 | 34 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 34 | 34 | 33 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 7 | W 7 | W 8 | W 7 | SW 7 | SW 7 | W 7 | W 6 | SW 6 | SW 6 | SW 7 | SW 7 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 99 | 74 | 53 | 23 | 43 | 23 | 42 | 29 | 14 | 13 | 15 | 10 | 8 | 8 | 21 | 19 | 19 | 19 | 9 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | E 9 | E 10 | E 10 | W 8 | W 7 | ENE 9 | ENE 9 | W 6 | ENE 9 | W 6 | W 7 | W 6 | SW 7 | W 5 | SE 9 | SW 8 |
| kJ | 51 | 35 | 51 | 7 | 7 | 7 | 35 | 25 | 16 | 16 | 7 | 16 | 6 | 8 | 7 | 8 | 2 | 3 | 2 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | SE 9 | SE 9 | SE 9 | ENE 10 | ENE 9 | SE 8 | S 7 | E 9 | W 6 | ENE 11 | ENE 10 | SW 7 | W 5 | SE 9 | SW 7 | SE 11 |
| kJ | 7 | 7 | 7 | 3 | 3 | 3 | 9 | 8 | 3 | 1 | 15 | 7 | 12 | 20 | 9 | 2 | 3 | 2 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 7 | SW 7 | SW 7 | — | — | SW 7 | SW 6 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 44 | 41 | 39 | — | — | 28 | 15 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 10 | 10 | 52 | 52 | 66 | 52 | 27 | 858 | 27 | 27 | 52 | 27 | 27 | 27 | 14 | 648 | 40 | 52 |
Best forecast wave conditions in Okinawa | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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