Tengan Surf Break

Lat Long: 26.40° N 127.86° E

Tengan Surf Forecast and Surf Report

Issued: 2 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tengan sea temperature is
28.6° C
0.2° 

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


Tengan surf forecast from 21 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 12AM (local time) - 7ft (2.2m), 15s period, E swell with offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 12PM (local time) - 10ft (3.0m), 17s period, E swell with 5,242 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 12AM (local time) - 7ft (2.2m), 15s 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 Wednesday (Aug 26) at 12AM. The primary swell is predicted to be 2.2m and 15s period with a secondary swell of 2.1m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Tengan in the next 16 days are 3.0m 17s and forecast to arrive on Tuesday (Aug 25) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 12s period and expected on Thursday (Aug 27) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Wed 26th Aug)7ft (2.2m) 15s
Best Surf12AM (Wed 26th Aug)7ft (2.2m) 15s
Most Powerful12PM (Tue 25th Aug)10ft (3.0m) 17s

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


The Lowdown

G’day, Rusty here. Look, I’ll be straight with you—this 16-day window for Tengan is a real mixed bag, and mostly a quiet one. We’ve got a long stretch of flat, junk surf to start, then a couple of days that look interesting for the experienced crew, but nothing that’s going to have the car park full. Let’s run through it.

The first few days are a write-off. From Friday the 21st right through the weekend and into the start of the next week, the swell is tiny—0.7ft to 3ft with short, weak periods. The wind is a pain too, cross-onshore from the SSE and SE, gusting over 18 mph, making it lumpy and messy. The combined energy is pathetic, barely cracking 75 in the early Sunday session. Honestly, it’s not worth paddling out for.

Monday the 24th sees a pulse of longer-period swell (18 seconds) but the energy is still moderate at best (203) and the wind is onshore, so the quality is poor. The swell height is only 1ft in the morning, picking up to 4ft by afternoon, but the conditions are still not clean.

Then we get a brief window. Tuesday the 25th has a solid 10ft swell from the ESE, with a very long period of 17 seconds. The combined energy jumps to 4844 in the morning and 5248 in the afternoon—strong, powerful stuff. But the wind is cross-on and cross-shore, so it’s going to be ragged and choppy on the surface. Only the experienced surfers who don’t mind a bit of wind chop will be into it. This is a beginner’s no-go zone; 10ft is too big for anyone not confident in heavy conditions.

The real standout arrives on Wednesday the 26th. Morning and afternoon both have proper offshore wind from the west, blowing at 12 mph, cleaning up the face beautifully. The swell is 12ft in the morning, dropping to 10ft in the afternoon, from the NNW with a period of 11-12 seconds. Combined energy is strong—3127 and 2110. This is proper groundswell, and for a reef break like Tengan, that long period and offshore wind will create some thick, hollow walls. This is only for the experts, though; 12ft is serious size. The water temperature is sitting around 84°F, which is pretty normal for this time of year, so no surprises there.

After that, the plug is pulled. From Thursday the 27th right through to the end of the forecast on the 5th of September, the swell drops back to ankle-to-knee-high (2ft to 5ft), with short, weak periods and mostly onshore or cross-onshore winds. The combined energy mostly sits below 200, and the conditions are consistently poor. There’s nothing worth getting excited about in that second week.

So, to sum it up: the only real shot at a decent wave is Wednesday the 26th of August at Tengan. It’s a standout for the expert crew, with clean offshore wind and a solid, powerful swell. Don’t bother with anything else in this window unless you’re just keen for a swim.

Rusty.

Short Range Forecast

Moderate rain (total 13mm), heaviest on Fri afternoon. Warm (max 28°C on Sat morning, min 27°C on Fri afternoon). Mainly strong winds.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Tue afternoon. Warm (max 29°C on Tue morning, min 27°C on Mon night). Mainly fresh winds.

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
PM
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
2
4
4
4
4
4
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)
0.2
ESE
11
2.2
SSE
7
0.3
ENE
9
0.2
E
9
0.2
ESE
10
1
SE
5
0.9
ESE
5
0.9
ESE
5
0.4
ESE
18
1.3
ESE
17
2.2
ESE
18
3
ESE
17
3
E
16
2.2
E
15
3.5
NNW
12
3
NNW
11
3
NW
11
0.6
E
10
0.6
E
9
0.6
E
10
Wave Graph
Metric surfscale
Energy kJ
11
0
16
7
10
43
42
39
130
1003
2897
4812
5210
2090
2915
2023
2136
68
61
65
Wind (km/h)
30
SSE
40
SSE
40
SE
35
SE
25
SE
25
ESE
30
ESE
20
ESE
25
E
30
E
20
ENE
15
NE
15
NNE
10
W
20
W
20
W
20
W
25
WNW
30
WNW
35
NW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross
off
off
off
off
off
cross-off
cross-off
High Tide
11:51PM1.67m
4:38PM1.54m
1:49AM1.61m
5:20PM1.67m
3:33AM1.68m
5:47PM1.78m
4:32AM1.81m
6:10PM1.88m
5:13AM1.94m
6:32PM1.97m
5:49AM2.06m
6:54PM2.05m
Low Tide
5:48PM1.37m
8:31AM0.85m
8:45PM1.43m
10:03AM0.76m
10:24PM1.33m
10:55AM0.64m
11:07PM1.21m
11:31AM0.52m
11:38PM1.07m
12:00PM0.41m
00:07AM0.94m
12:28PM0.33m
00:36AM0.80m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
thunderstorm
thunderstorm
clear
clear
clear
clear
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:03
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
6:59
6:58
6:57
6:55
6:54
6:53
 mm
4
2
2
1
2
1
1
1
1
2
3
1
Temp °C
27
27
28
28
27
28
28
27
28
28
27
29
29
28
28
29
28
29
28
28
Feels °C
27
26
27
28
28
29
29
28
29
29
28
31
32
32
30
31
32
30
29
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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