Tainohama Surf Break

Lat Long: 33.74° N 134.57° E

Tainohama Surf Forecast and Surf Report

Issued: 2 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Tainohama sea temperature is
27.4°C
0.5° 

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


Tainohama surf forecast from 13 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 3PM (local time) - 13ft (4.0m), 15s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Sunday 20 Sep, 9PM (local time) - 15ft (4.5m), 15s period, SE swell with 8,694 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 3AM (local time) - 4.5ft (1.3m), 10s period with SE 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 Tuesday (Sep 15) at 3AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.1m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Tainohama in the next 16 days are 4.5m 15s and forecast to arrive on Sunday (Sep 20) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Sep 20) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 15th Sep)4.5ft (1.3m) 10s
Best Surf 3PM (Sat 19th Sep)13ft (4.0m) 15s
Most Powerful 9PM (Sun 20th Sep)15ft (4.5m) 15s

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


The Lowdown

Alright, this is Rusty. Let’s take a look at what’s coming up for Tainohama.

The first few days are pretty flat and ugly. Sunday the 13th, the mix of onshore wind and tiny swell gives you nothing to work with. The water is sitting at 81°, which is about average for this time of year, so at least it’s warm if you’re just having a swim.

Things start to wake up on Tuesday morning, September 15th. There’s a 4ft swell from the SE with a 9-second period, and the wind goes glassy. For a moment, it looks like the cleanest window of the whole run. The combined energy is moderate at 290, and while the conditions are right, the size is small and the direction is so straight that this reef break might be a bit fat. Still, Tuesday morning is the first real chance to get wet without getting washed.

Then we hit a gap of ordinary, clean but small days through Wednesday and Thursday. The swell drops below 3ft and energy dips into the low double digits. That’s a stretch of nothing exciting.

But hold onto your board. Friday the 18th is when the party starts. Friday morning brings a solid 7ft swell from the E, period at 8 seconds, and clean cross-off wind. Combined energy hits 944 – that’s a proper bump in power. You’ll have good, punchy waves. Friday afternoon drops slightly to 6ft, but goes glassy again, making it another top pick for clean rides.

Now, Saturday September 19th is the standout. The swell jumps to 12ft in the morning and 13ft in the afternoon, both from the ESE with a very long period of 15-16 seconds. Combined energy is massive – 6196 in the morning, 7643 in the afternoon. A 13ft, 15-second groundswell with clean cross-off wind is serious. This is for experts only – it’s big, powerful, and that long period will make it wall up on the reef. Rips will be strong, and paddling out will be a mission, but the reward is extreme.

Sunday the 20th keeps the size at 13ft from the SE, but the wind cranks up to 22-25 mph from the north. It’s cross-off, but that’s a lot of breeze. The waves will be lumpy and hard to manage. The energy is still up around 6120-7429, but the quality drops.

Monday the 21st is only for the absolute crazies. The swell maxes out at 21-25ft from the SE with 14-15 second periods. Combined energy hits 19895-21886. That’s a monster. Even with offshore wind, this is simply too big for Tainohama. Not for paddle surfing.

After that, it drops off a cliff. By Tuesday the 22nd, the swell crashes to 4ft, and the rest of the week into the 28th sees mostly weak, small, or onshore junk. There is a brief glimmer on Monday September 28th – a 6ft SE swell with a 14-second period and clean offshore or glassy wind. Combined energy is 1483. That’s a decent long-period groundswell with clean conditions – excellent for experienced surfers. But that’s a full two weeks out, so it’s promising but not locked in.

All in all, the best bet is Saturday September 19th for the brave, and the Friday before that for a slightly more manageable score. The rest is either flat, blown out, or outright dangerous.

Rusty

Short Range Forecast

Heavy rain (total 28mm), heaviest during Tue night. Warm (max 28°C on Sun afternoon, min 23°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 29mm), heaviest during Wed afternoon. Warm (max 27°C on Sat morning, min 23°C on Wed night). Wind will be generally light.

Sun
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
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
1
2
1
1
1
1
1
1
1
1
3
3
5
6
8
6
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
ESE
9
1
SE
9
1
SE
8
1
SE
8
1.2
SE
10
1.3
SE
9
1.2
SE
9
1.1
SE
9
0.9
ESE
9
0.9
SE
9
0.9
ESE
9
0.7
ESE
9
0.9
SE
8
1.3
ESE
7
2.2
E
8
1.7
ESE
8
2.2
ESE
17
3.5
ESE
16
4
ESE
15
4
SE
14
Wave Graph
Metric surfscale
Energy kJ
54
145
132
138
262
272
237
182
135
107
132
67
105
144
612
357
2731
6196
5952
6163
Wind (km/h)
20
S
10
SSE
10
S
20
S
10
SSW
5
SE
5
SE
5
SSW
10
N
5
NE
5
NNW
15
NNE
10
NNE
5
NNE
10
NE
5
NNE
10
NNW
15
N
15
N
20
N
Wind State
on
on
cross-on
on
cross-on
glassy
cross-on
glassy
cross-off
cross-off
off
cross-off
cross-off
glassy
cross-off
glassy
off
cross-off
cross-off
cross-off
High Tide
6:45PM1.95m
7:12AM1.99m
7:08PM1.94m
7:50AM1.90m
7:32PM1.91m
8:31AM1.77m
7:58PM1.85m
9:19AM1.62m
8:25PM1.77m
10:26AM1.48m
8:57PM1.67m
12:35PM1.40m
9:48PM1.55m
Low Tide
00:55AM0.39m
1:12PM0.61m
1:28AM0.36m
1:40PM0.75m
2:04AM0.38m
2:07PM0.90m
2:43AM0.44m
2:36PM1.06m
3:31AM0.53m
3:08PM1.21m
4:39AM0.64m
4:09PM1.34m
clear
thunderstorm
thunderstorm
cloud
light rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
rain showers
thunderstorm
part cloud
part cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:45
5:45
5:46
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:10
6:08
6:07
6:06
6:05
6:04
 mm
2
1
3
1
5
13
3
7
4
3
5
5
3
2
3
1
Temp °C
28
26
28
27
24
26
25
24
26
26
24
25
26
24
26
26
24
27
24
23
Feels °C
30
30
30
28
26
30
29
28
29
29
28
27
29
27
30
30
27
28
26
23
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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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