Tengan Surf Break

Lat Long: 26.40° N 127.86° E

Tengan Surf Forecast and Surf Report

Issued: 8 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tengan sea temperature is
28.9° C
0.1° 

Tengan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Tengan surf forecast from 17 Aug 2026:

  • Best quality surf: Saturday 22 Aug, 12AM (local time) - 7.5ft (2.3m), 8s period, SE swell with glassy winds.
  • Most powerful swell: Saturday 22 Aug, 12AM (local time) - 7.5ft (2.3m), 8s period, SE swell with 622 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 12AM (local time) - 7.5ft (2.3m), 8s period with SE 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 Saturday (Aug 22) at 12AM. The primary swell is predicted to be 2.3m and 8s period with a secondary swell of 1.4m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Tengan in the next 16 days are 2.3m 8s and forecast to arrive on Saturday (Aug 22) at 12AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Saturday (Aug 22) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 22nd Aug)7.5ft (2.3m) 8s
Best Surf12AM (Sat 22nd Aug)7.5ft (2.3m) 8s
Most Powerful12AM (Sat 22nd Aug)7.5ft (2.3m) 8s

Table - best surf conditions forecast for Tengan over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what Tengan (reef) is cooking up over the next couple of weeks. It’s not the best start, but if you’ve got patience, there’s something special on the horizon.

Right now, we are in a bit of a flat spell. The first few days are pretty hopeless – onshore winds and tiny, weak swell just aren't giving us anything to work with. You’re looking at poor surf conditions right through until Monday the 25th of August. That's a solid stretch of nothing much.

Things start to stir a little on Tuesday the 25th. The wind swings light offshore from the northwest, and we finally start to see some of that long-period groundswell showing up. It’s still small though, with just 2ft to 3ft of swell from the east-southeast, but the period is a juicy 14 seconds. The combined energy is still pretty weak, but the clean conditions make it worth a paddle if you're desperate.

Now, Wednesday the 26th is where it gets interesting. The swell builds to a clean 4ft to 4ft from the east-southeast, with that period stretching out to a beautiful 15 seconds. The wind stays light and offshore. The combined energy jumps to a moderate level, and the wave quality is looking much better. This is a proper groundswell, so it’s going to love that reef setup.

The real standout though, without a doubt, is the weekend of the 29th and 30th of August. Saturday the 29th has clean, glassy conditions with a light offshore breeze. We’re looking at a solid 6ft to 6ft of long-period east swell (16 seconds). The combined energy gets up into the strong territory. This is excellent, powerful groundswell for experienced surfers. The reef at Tengan is going to be firing, with well-shaped, punchy waves. It’s going to be a special morning.

Just a heads up for the end of the run. By Sunday the 30th, the swell pushes past 8ft, and while it's still clean early, it gets too big for beginners and starts to feel a bit more wild. Then Monday the 31st and Tuesday the 1st of September, the models are showing a massive swell, hitting 26ft to 33ft. That's way too big for this spot and will be dangerous chaos. Avoid it.

So, for the best of the best, lock in Saturday the 29th of August. That early session with the offshore breeze and 6ft to 6ft of long-period east swell is as good as it gets here.

Rusty.

Short Range Forecast

Heavy rain (total 32mm), heaviest during Wed afternoon. Warm (max 28°C on Tue morning, min 26°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 48mm), heaviest during Fri morning. Warm (max 28°C on Sat morning, min 26°C on Fri morning). Winds increasing (calm on Fri night, fresh winds from the SE by Sun morning).

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
ESE
5
0.9
E
6
0.9
E
5
1.2
E
5
1.4
E
8
1.3
E
8
1.8
ESE
8
1.6
SE
9
2
ESE
8
2
SE
9
1.5
SE
8
1.6
SE
7
2.3
SE
8
1.7
SE
9
0.2
E
10
1.5
SE
6
0.2
E
9
0.2
E
8
0.2
E
14
Wave Graph
Metric surfscale
Energy kJ
23
60
35
75
217
193
408
363
464
612
311
281
622
461
8
175
6
6
14
Wind (km/h)
25
ESE
25
E
25
ENE
25
ENE
30
E
30
ESE
30
ESE
30
SE
30
SE
30
SSE
25
SE
20
SE
5
E
15
SE
25
SE
30
ESE
35
SE
30
SE
25
ESE
Wind State
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
9:29PM2.06m
10:05AM1.80m
9:55PM1.99m
10:54AM1.63m
10:22PM1.90m
12:02PM1.49m
10:56PM1.79m
2:22PM1.43m
11:51PM1.67m
4:38PM1.54m
1:49AM1.61m
5:20PM1.67m
Low Tide
3:57AM0.62m
3:48PM0.85m
4:38AM0.67m
4:16PM1.03m
5:27AM0.75m
4:49PM1.21m
6:38AM0.83m
5:48PM1.37m
8:31AM0.85m
8:45PM1.43m
10:03AM0.76m
10:24PM1.33m
clear
part cloud
clear
rain showers
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:02
7:01
7:00
7:00
6:59
6:58
 mm
1
4
8
11
4
4
15
9
6
1
7
4
4
2
Temp °C
27
28
28
28
28
28
27
28
27
27
26
27
27
28
27
27
28
28
28
Feels °C
29
29
29
29
29
29
28
29
27
28
27
30
31
32
28
27
28
28
29
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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