
Surf Forecasts:
Tengan surf forecast from 12 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 9PM (local time) - 1.5ft (0.5m), 12s period, E swell with 76 kJ wave energy.
Best Forecast Surf Conditions for Tengan this week:
The most powerful waves expected at Tengan in the next 16 days are 0.5m 12s and forecast to arrive on Sunday (Jul 19) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 10s period and expected on Monday (Jul 13) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 9PM (Sun 19th Jul) | 1.5ft (0.5m) 12s |
Table - best surf conditions forecast for Tengan over the next 16 days.
Alright folks, Rusty here. Let’s have a proper look at what’s on offer, and I gotta be straight with you – it’s a pretty quiet stretch ahead for Tengan. Don’t get your hopes up, because for the first week or so, there’s barely a ripple worthy of paddling for.
The whole 16-day window is a tough one. We kick off Sunday the 12th with nothing – zero combined energy (0), and that stays the case right through Thursday the 17th. The water temp is sitting at 84°, which is about average for this time of year, so no surprises there. But the surf? Just tiny, weak little bumps in the knee-high range at best, with periods under 10 seconds. The wind is cross or onshore mostly, making a mess of what little is there. You’d be better off finding a different hobby for that first week.
We do see a slight pulse starting to build through the second week. Saturday the 19th has a little more juice, combined swell energy hitting 70, but with a cross-onshore wind and only 2ft of swell from the east at a middling 10 seconds, it’s still sloppy. The real uptick comes Monday the 21st – finally, some proper size. Morning sees 4ft from the east (11 seconds), with combined energy climbing to 382. The wind is light and onshore though, so it’s gonna be lumpy and closed out. Afternoon gets a bit bigger at 4ft, but the direction switches to north with only 8 seconds of period, which is junk – short period windswell with onshore wind. That’s more of a kite-surfing setup than a longboard day.
Later in the week, Wednesday the 23rd and Thursday the 24th look like the best bet, and I mean the best of a bad bunch. Wednesday morning the 23rd has 2ft from the east-northeast (10 seconds) and moderate cross-onshore wind. Not great. But Thursday morning the 24th shows 2ft from the east with a longer 12-second period, combined energy of 72, and winds swinging north, light and cross-shore. That’s the cleanest window we get. The swell direction is east, which is reasonably aligned for Tengan’s preferred northeast, and with a bit of period you might find a fun waist-high wave on the rising tide. Crowds are “sometimes,” so you could have it fairly quiet.
Given the whole period is a struggle, the standout – and I use that term loosely – is Thursday morning the 24th at Tengan itself. Small, cleanish, and the best wind we see. It’s not gonna be a classic, but it’s the one session I’d pencil in.
Stay patient, lads. Sometimes you get weeks like this. Forecasts can change, but right now it’s a long quiet spell.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun afternoon. Warm (max 29°C on Sun afternoon, min 27°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Sat morning. Warm (max 30°C on Thu afternoon, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 11 | SE 13 | S 9 | S 9 | S 9 | E 9 | E 9 | E 9 | E 9 | ESE 11 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 12 | E 11 | E 10 |
Wave Graph | |||||||||||||||||||||
0 | 7 | 0 | 0 | 0 | 7 | 6 | 7 | 7 | 22 | 7 | 6 | 7 | 7 | 7 | 7 | 7 | 18 | 46 | 62 | 53 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-off | off | cross-off | cross-off | off | cross-off | off | cross-off | glassy | cross | cross-on | on | cross-on |
High Tide | 5:55PM1.92m | 4:48AM2.06m | 6:44PM2.03m | 5:44AM2.16m | 7:28PM2.09m | 6:36AM2.22m | 8:09PM2.11m | 7:25AM2.23m | 8:48PM2.09m | 8:12AM2.17m | 9:24PM2.06m | 8:58AM2.06m | 9:57PM2.01m | 9:46AM1.91m | |||||||
Low Tide | 11:14PM1.17m | 11:53AM0.11m | 00:08AM1.09m | 12:43PM0.01m | 00:56AM1.02m | 1:30PM-0.00m | 1:41AM0.95m | 2:13PM0.05m | 2:26AM0.90m | 2:53PM0.18m | 3:11AM0.85m | 3:30PM0.35m | 3:56AM0.82m | ||||||||
— | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | |
7:23 | — | — | 7:23 | — | — | 7:23 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | 7:22 | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 2 | 1 |
Temp °C | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 29 |
Feels °C | 30 | 29 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 32 | 34 | 33 | 34 | 34 | 33 | 34 | 33 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 10 | WSW 9 | S 9 | S 9 | S 9 | SSW 9 | SW 11 | SW 10 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 |
563 | 142 | 54 | 235 | 155 | 151 | 137 | 112 | 157 | 216 | 144 | 117 | 77 | 128 | 84 | 81 | 62 | 62 | 55 | 44 | 33 | |
Swell 2 Height (m) Direction Period (s) | W 10 | W 9 | W 8 | WSW 8 | SW 9 | SW 11 | SW 10 | S 9 | S 8 | ESE 11 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | W 6 | E 10 | ESE 12 | E 11 | E 10 |
247 | 81 | 35 | 47 | 40 | 40 | 35 | 55 | 11 | 22 | 7 | 6 | 7 | 7 | 7 | 7 | 5 | 18 | 46 | 62 | 53 | |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | W 11 | W 8 | W 8 | E 9 | E 9 | E 9 | E 9 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SE 10 | E 10 | ESE 9 | S 6 | W 6 | E 15 |
— | 7 | 9 | 11 | 5 | 7 | 6 | 7 | 7 | 4 | 4 | 4 | 4 | 4 | 1 | 4 | 7 | 8 | 1 | 6 | 17 | |
Wind waves Height (m) Direction Period (s) | SSE 11 | S 10 | S 9 | — | — | — | — | — | S 7 | — | — | W 5 | W 5 | W 5 | — | — | — | — | — | — | — |
1066 | 640 | 325 | — | — | — | — | — | 70 | — | — | 11 | 7 | 8 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 631 | 631 | 657 | 679 | 13 | 13 | 13 | 13 | 66 | 613 | 613 | 621 | 613 | 613 | 737 | 40 | 14 | 12 | 12 | 12 | 10 |
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.











