Tengan Surf Break

Lat Long: 26.40° N 127.86° E

Tengan Surf Forecast and Surf Report

Issued: 8 am 15 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 15 Aug 2026:

  • Most powerful swell: Thursday 20 Aug, 9PM (local time) - 6ft (1.8m), 10s period, ESE swell with 689 kJ wave energy.

Best Forecast Surf Conditions for Tengan this week:

The most powerful waves expected at Tengan in the next 16 days are 1.8m 10s and forecast to arrive on Thursday (Aug 20) 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 2.5m 9s period and expected on Saturday (Aug 22) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 9PM (Thu 20th Aug)6ft (1.8m) 10s

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


The Lowdown

Alright, let’s break it down in feet and miles per hour. The only spot we’re looking at is Tengan, a reef break that’s inconsistent and geared toward beginners, but it’s not delivering much at all.

Starting Saturday, August 15th, the water temp is 84°F, which is about average for this time of year. The swell is a tiny 1.0 ft out of the ENE, with a 11-second period, and the combined energy is a weak 23. Wind is light from the east at 3 mph, but it’s onshore, so conditions are poor. Nothing to get excited about.

Through the weekend and into the next week, it’s more of the same. Sunday the 16th, wind picks up to 12 mph from the ESE, cross-onshore and choppy, with swell still at 1.0 ft. Energy climbs to 39, still weak. Monday the 17th, it’s clear but onshore, with swell at 1.0 ft to 2 ft. It’s flat.

Tuesday the 18th, swell bumps to 3 ft from the E, but the period is short at 6 seconds, and energy hits 75. Still moderate. Wednesday the 19th, we see 3 ft from the east with a 7-second period, energy at 106, but the wind is cross-onshore and choppy. Not good.

Thursday the 20th is the most interesting, but it’s not great. The swell hits 7 ft out of the SE, with a 9-second period, and energy of 747—moderate wave energy. Wind is 16 mph from the SSE, cross-onshore, with a risk of thunderstorms. That’s big and messy. At 7 ft, it’s for experts only, and it looks more like a kiteboarding day.

From Friday the 21st, it drops off. The 22nd and 23rd see tiny 0.7 ft to 2 ft swells, with short periods and cross-onshore winds. Energy is low, 22 to 77. The 24th and 25th bring a longer period groundswell at 13 to 19 seconds, with energy at 168 and 222, but swell height is only 1 ft to 3 ft, and it’s cross-onshore. The long period could help shape at the reef, but the size just isn’t there.

The tail end of the window, from the 27th to the 30th, shows cleaner conditions. On the 27th, we get cross-offshore winds from the SW at 12 mph, with a 2 ft east swell at 12 seconds—clean but tiny. On the 28th, Friday, it’s a light NNW wind at 3 mph, cross-offshore, and by afternoon it’s glassy. That’s the cleanest we’ll see, but the swell is only 1.0 ft. Flat.

So, no standout days. The best is Thursday the 20th with 7 ft, but it’s stormy and messy. After that, the 27th and 28th are clean but flat. This is a 16-day stretch with very little to offer. Tengan is inconsistent, and a blank run like this is normal for the area. Keep your board handy, but don’t expect much.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Sat afternoon. Warm (max 29°C on Sat morning, min 27°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Tue morning. Warm (max 29°C on Thu morning, min 27°C on Tue afternoon). Winds increasing (light winds from the E on Tue morning, near gales from the E by Thu night).

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
AM
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
0
0
0
0
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)
0.3
ENE
11
0.3
ENE
11
0.3
ENE
10
0.3
ENE
10
0.3
ENE
10
0.8
ESE
4
0.3
ENE
10
0.6
ESE
6
0.8
ESE
4
0.7
E
6
0.9
E
6
1.1
E
6
1.5
ENE
5
1.5
E
8
1.3
E
8
0.9
ESE
8
1.2
E
9
1.5
ESE
10
1
E
8
0.9
ESE
8
0.1
E
10
Wave Graph
Metric surfscale
Energy kJ
23
23
20
20
20
20
20
20
19
31
52
97
126
287
224
115
224
473
147
109
2
Wind (km/h)
5
E
5
ESE
15
ESE
20
ESE
20
ESE
25
ESE
20
E
20
ESE
20
E
20
E
25
E
25
E
35
ENE
35
E
30
E
30
E
35
ENE
40
ENE
40
ENE
55
NE
50
NE
Wind State
glassy
on
cross-on
cross-on
on
cross-on
on
on
on
on
on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
High Tide
8:39PM2.15m
8:41AM2.10m
9:05PM2.12m
9:22AM1.96m
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
Low Tide
2:22PM0.31m
2:42AM0.63m
2:52PM0.48m
3:19AM0.60m
3:21PM0.66m
3:57AM0.62m
3:48PM0.85m
4:38AM0.67m
4:16PM1.03m
5:27AM0.75m
4:49PM1.21m
6:38AM0.83m
5:48PM1.37m
part cloud
thunderstorm
clear
thunderstorm
clear
clear
clear
clear
clear
rain showers
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:00
6:01
6:01
6:01
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:04
7:04
7:02
7:01
7:00
7:00
 mm
1
2
1
1
2
2
3
2
1
1
3
Temp °C
29
29
27
28
28
27
28
28
27
28
28
27
28
28
28
29
29
28
28
28
27
Feels °C
34
34
30
30
30
28
29
29
29
31
29
28
28
29
29
30
29
27
26
23
23
  • Map Icons:
  • Break
  • 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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