
Surf Forecasts:
Tengan surf forecast from 1 Aug 2026:
- Best quality surf: Thursday 6 Aug, 12PM (local time) - 16ft (5.0m), 19s period, E swell with cross-shore winds.
- Most powerful swell: Friday 7 Aug, 12AM (local time) - 38ft (11.5m), 14s period, NNE swell with 47,770 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3PM (local time) - 1.5ft (0.5m), 17s period with E swell.
Best Forecast Surf Conditions for Tengan this week:
The surf forecast for Tengan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 02) at 3PM. The primary swell is predicted to be 0.5m and 17s period with a secondary swell of 0.2m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tengan in the next 16 days are 11.5m 14s and forecast to arrive on Friday (Aug 07) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 11.0m 12s period and expected on Friday (Aug 07) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 2nd Aug) | 1.5ft (0.5m) 17s |
| Best Surf | 12PM (Thu 6th Aug) | 16ft (5.0m) 19s |
| Most Powerful | 12AM (Fri 7th Aug) | 38ft (11.5m) 14s |
Table - best surf conditions forecast for Tengan over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
Well, to be honest, the next 16 days are looking pretty grim for the North Shore. We’ve got a real drought on our hands. The first week is basically a write-off, and the second week doesn’t offer much to get excited about either. The water’s sitting at a warm 86°F, which is a touch warmer than what we’d normally expect for this time of year.
The only break on the menu is Tengan (North Shore). This is a beginner-friendly reef setup that’s pretty inconsistent and rarely breaks, so the fact it’s even showing up is a bit of a red flag. It’s fairly exposed to swell, and it needs the swell to come from the NE to work its magic.
The first few days are a total bust. The swell is tiny, and the wind is a cross-off, but the energy is just not there. On Saturday, August 1st, we’re looking at a 0.7ft wave from the east with a weak energy reading of just 11. It’s clean, but there’s nothing to ride. Sunday, August 2nd, is more of the same, though the afternoon sees a slight bump to 2ft and a moderate energy of 165, but the conditions are still ordinary.
Monday, August 3rd, the swell picks up a bit to 3ft, but the wind swings cross-shore and builds, making it choppy. The energy is moderate at 294. Tuesday, August 4th, we get a bit more size, with the morning seeing 4ft and a strong energy reading of 1093, but the wind is cross-shore and we’ve got a risk of thunderstorms. The best of the weak bunch? That’s a stretch.
The middle of the week gets ugly. Wednesday, August 5th, the swell pushes to 6ft with a strong energy of 2371, but the wind is a fresh cross-shore and the conditions are lumpy. This is more of a kite-surfing setup than a paddle-surfing one. Thursday, August 6th, is when things get dangerous. The swell hits 15ft to 16ft, with a massive energy of 26851, but we’ve got near gale-force cross-shore winds. The forecast says it’s too big for this break, and honestly, for experts only, if they’re crazy. The period is 19 seconds, which is a very long groundswell, but at a beach break like this, it’ll be a close-out.
Then the hurricane-force winds hit Friday, August 7th, through the weekend. Winds are hitting 75 mph, making it impossible. The swell drops off a cliff, and the energy plummets. Saturday, August 8th, sees 0.7ft with a hurricane-force cross-onshore. It’s dangerous and completely blown out.
The second week is a slow, sad fade. Sunday, August 9th, has no swell at all. The following days offer tiny, weak waves. Monday, August 10th, brings 5ft, but it’s short-period at 7 seconds and the wind is a near gale. The energy is moderate at 267. Tuesday through Saturday are all similar: small swell, poor wind, and the energy stays weak. By Sunday, August 16th, we get a little bump to 3ft with a longer period of 14 seconds, but the wind is onshore and the conditions are marginal. The energy is 282, which is moderate but not enough to save the day.
Honestly, there’s nothing here to recommend. The best you could hope for is a session on the afternoon of August 2nd, but even that’s a stretch. Otherwise, it’s a 16-day blank run. For a spot like this, that’s not unusual. Forecasts can change, but right now, I’d say leave the boards at home.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 31°C on Mon afternoon, min 27°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 38mm), heaviest during Thu night. Warm (max 31°C on Wed morning, min 28°C on Tue night). Winds increasing (light winds from the NNE on Tue morning, extremely windy from the N by Thu night). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | E 9 | E 9 | E 9 | E 19 | E 17 | E 16 | E 15 | ESE 16 | E 16 | E 18 | E 18 | E 18 | E 18 | E 19 | E 19 | E 19 | E 19 | NNE 14 | N 12 | N 11 | E 16 |
Wave Graph | |||||||||||||||||||||
6 | 6 | 6 | 29 | 151 | 245 | 287 | 421 | 509 | 1075 | 1197 | 1561 | 2325 | 3999 | 9047 | 16331 | 18588 | 47770 | 4021 | 89 | 5 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on |
High Tide | 8:47PM2.06m | 8:26AM2.07m | 9:13PM2.06m | 9:06AM1.99m | 9:41PM2.04m | 9:50AM1.87m | 10:10PM2.00m | 10:43AM1.73m | 10:45PM1.94m | 11:55AM1.60m | 11:32PM1.88m | 1:45PM1.54m | 00:42AM1.83m | ||||||||
Low Tide | 2:20PM0.30m | 2:38AM0.76m | 2:49PM0.38m | 3:14AM0.71m | 3:18PM0.52m | 3:54AM0.69m | 3:50PM0.69m | 4:40AM0.68m | 4:26PM0.88m | 5:37AM0.69m | 5:13PM1.09m | 6:52AM0.68m | 6:30PM1.28m | ||||||||
5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | |
mm | — | — | — | — | — | — | — | — | 4 | 2 | 1 | — | — | — | 1 | 4 | 4 | 26 | 71 | 63 | 95 |
Temp °C | 30 | 30 | 29 | 30 | 30 | 29 | 30 | 31 | 29 | 30 | 30 | 29 | 31 | 31 | 29 | 29 | 29 | 29 | 29 | 29 | 30 |
Feels °C | 34 | 34 | 33 | 34 | 33 | 33 | 32 | 33 | 32 | 34 | 33 | 32 | 32 | 32 | 28 | 25 | 24 | 22 | 14 | 14 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | E 16 | E 17 | E 16 | E 15 | ESE 16 | E 16 | E 18 | E 18 | E 18 | E 18 | E 19 | E 19 | E 19 | E 19 | E 16 | N 12 | N 11 | WSW 14 |
11 | 3 | 3 | 19 | 151 | 245 | 287 | 421 | 509 | 1075 | 1197 | 1561 | 2325 | 3999 | 9047 | 16331 | 18588 | 13992 | 4021 | 89 | 12201 | |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 19 | ESE 9 | SW 7 | S 7 | SW 7 | SW 7 | N 5 | NNW 5 | — | S 7 | — | — | — | — | — | E 12 | NNE 16 | E 16 |
6 | 6 | 6 | 29 | 8 | 2 | 1 | 2 | 2 | 18 | 8 | — | 10 | — | — | — | — | — | 529 | 83 | 5 | |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | E 18 | SW 8 | E 8 | S 7 | ESE 9 | S 7 | SE 8 | — | S 9 | — | — | — | — | — | — | — | N 16 | E 15 | — |
5 | 5 | 6 | 3 | 6 | 1 | 7 | 1 | 11 | — | 6 | — | — | — | — | — | — | — | 438 | 17 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 7 | N 3 | N 5 | — | — | NNE 6 | NNE 5 | NNE 5 | NNE 7 | N 9 | N 11 | NNE 14 | S 9 | SSW 13 | S 12 |
— | — | — | — | — | — | 4 | 3 | 20 | — | — | 25 | 46 | 99 | 604 | 2827 | 8263 | 47770 | 2896 | 37973 | 6689 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1402 | 1400 | 648 | 11 | 0 | 0 | 25 | 27 | 23 | 12 | 12 | 12 | 23 | 745 | 621 | 737 | 745 | 621 | 875 | 745 | 745 |
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.











