Tainohama Surf Break

Lat Long: 33.74° N 134.57° E

Tainohama Surf Forecast and Surf Report

Issued: 8 pm 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tainohama sea temperature is
28.6° C
0.9° 

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


Tainohama surf forecast from 14 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 12PM (local time) - 3.5ft (1.0m), 8s period, E swell with glassy winds.
  • Most powerful swell: Friday 21 Aug, 12PM (local time) - 8ft (2.4m), 8s period, S swell with 829 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 6AM (local time) - 2.5ft (0.7m), 10s period with S swell.

Best Forecast Surf Conditions for Tainohama this week:

The surf forecast for Tainohama over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 6AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Tainohama in the next 16 days are 2.4m 8s and forecast to arrive on Friday (Aug 21) at 12PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 15th Aug)2.5ft (0.7m) 10s
Best Surf12PM (Tue 18th Aug)3.5ft (1.0m) 8s
Most Powerful12PM (Fri 21st Aug)8ft (2.4m) 8s

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


The Lowdown

Alright, Rusty here. Let's take a look at what's coming up for Tainohama over the next couple of weeks.

Honestly, we’re in for a bit of a flat spell to start. The first week looks pretty grim for a proper surf. From Friday the 14th right through to Monday the 17th, it’s a write-off. The swell is small, the winds are messy—mostly cross-onshore or onshore—and the wave energy is weak. You’ve got readings around 109 to 304 (moderate energy), but the quality just isn’t there. It’s going to be choppy and unsurfable. Wait it out.

Tuesday morning the 18th is our first real glimmer of hope. The wind goes glassy, and we see a small but promising 3ft swell from the east at 8 seconds. The combined energy climbs to 271 (moderate), and for a moment, it’s looking clean. It’s not big, but it’ll be rideable. The afternoon gets chopped up again, so that morning session is your window. Water temp is sitting at 84°, which is about average for this time of year.

The next few days after that are more of the same—small, messy, and inconsistent. We see a few moments on Wednesday the 19th morning with a light offshore wind, but the swell drops to 3ft and the energy is weak at 99. Thursday the 20th is glassy but with only 1ft of swell; barely worth paddling out.

Now, here’s where things get interesting. The real standout is shaping up for Tuesday the 25th into Wednesday the 26th. We’ve got a solid pulse of groundswell arriving. Tuesday morning brings a 5ft swell from the east-southeast with a long period of 14 seconds, and the wind is offshore from the north. The combined energy hits 841 (strong). The afternoon turns glassy with 5ft and a 13-second period, energy at 879. This is going to be clean, powerful, and well-shaped. Wednesday the 26th holds onto that energy with 6ft in the morning and 5ft in the afternoon, both with offshore and cross-offshore winds. Energy peaks at 1162 (very strong) on Wednesday morning. This stretch is the best on offer. The swell is big enough to be fun but still manageable for experienced surfers. Keep in mind, with such a long period (13-14 seconds), it’s a groundswell that will love the reef setup at Tainohama, but it might break a bit straight if you’re used to a beach break. These are the sessions to circle on your calendar.

Late in the month, things settle back down. Thursday the 27th has a small, glassy morning, but the swell is fading. By Friday the 28th, the wind turns onshore again with a messy 7ft swell from the southwest—too much size for the conditions, and only for experts. It’s not worth it with the rain and chop.

Saturday the 29th sees a last gasp of small, clean surf, but it’s weak energy (68) and only 2ft. The window is closing.

Bottom line: The first week is a dud. The clear winners are Tuesday the 25th and Wednesday the 26th. Get in the water then, and you’ll be rewarded.

Rusty

Short Range Forecast

Heavy rain (total 41mm), heaviest during Sun morning. Warm (max 29°C on Sat morning, min 25°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Thu morning. Warm (max 30°C on Tue afternoon, min 25°C on Mon night). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
0
0
0
0
0
0
1
1
2
1
1
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
S
8
0.7
S
10
0.7
S
9
0.6
S
9
1.5
ESE
6
1.7
ESE
6
1.3
ESE
6
1.1
SE
6
0.9
ESE
5
0.8
ESE
9
0.4
SE
11
0.7
ESE
6
1.3
ESE
7
0.9
ESE
8
1.4
ESE
7
1
ESE
6
1.1
ESE
5
1.2
SE
6
1.7
SSE
8
Wave Graph
Metric surfscale
Energy kJ
52
92
79
56
136
213
112
69
49
94
30
28
171
89
214
66
61
92
348
Wind (km/h)
10
WSW
5
S
15
S
10
SE
20
SE
20
SSE
15
SE
15
SE
15
S
10
SE
5
WSW
5
SE
5
W
10
NE
10
SSE
5
SSE
10
SE
15
SSE
10
S
Wind State
cross
glassy
on
cross-on
cross-on
on
on
on
on
on
glassy
glassy
cross-off
cross-off
on
on
on
on
on
High Tide
6:47AM2.00m
7:28PM1.93m
7:26AM1.97m
7:52PM1.91m
8:05AM1.88m
8:18PM1.88m
8:47AM1.76m
8:45PM1.83m
9:37AM1.62m
9:13PM1.77m
10:45AM1.47m
9:48PM1.69m
Low Tide
00:51AM0.69m
1:11PM0.34m
1:24AM0.61m
1:41PM0.46m
1:58AM0.57m
2:11PM0.61m
2:35AM0.56m
2:40PM0.78m
3:17AM0.58m
3:10PM0.96m
4:09AM0.63m
3:44PM1.13m
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:22
5:24
5:24
5:24
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:49
6:47
6:46
6:45
6:44
6:43
 mm
10
9
4
10
6
2
4
1
5
1
2
Temp °C
25
29
28
26
27
27
25
27
28
26
29
30
27
30
30
27
28
29
27
Feels °C
28
31
29
30
29
29
27
29
30
30
32
33
30
33
33
32
32
32
32
  • 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 Tainohama Surf forecast

The above surf forecast table for Tainohama provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tainohama can be found by selecting the local surf guide option on the grey menu. Our Tainohama 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 (Tainohama) 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 Tainohama 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.

Tainohama is 21 km (13 miles) from Anan. If you plan a holiday in Shikoku, look for hotels and other accommodation in Anan. Anan has rooms for a wide range of budgets as well as car hire and transport links.

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