Tainohama Surf Break

Lat Long: 33.74° N 134.57° E

Tainohama Surf Forecast and Surf Report

Issued: 8 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tainohama sea temperature is
28.3° C
0.6° 

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


Tainohama surf forecast from 19 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 9PM (local time) - 18ft (5.5m), 17s period, SE swell with cross-shore winds.
  • Most powerful swell: Thursday 27 Aug, 12AM (local time) - 25ft (7.5m), 13s period, ESE swell with 19,402 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 6AM (local time) - 1.5ft (0.4m), 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 Thursday (Aug 20) at 6AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.4m 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 7.5m 13s and forecast to arrive on Thursday (Aug 27) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Wednesday (Aug 26) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Thu 20th Aug)1.5ft (0.4m) 10s
Best Surf 9PM (Tue 25th Aug)18ft (5.5m) 17s
Most Powerful12AM (Thu 27th Aug)25ft (7.5m) 13s

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


The Lowdown

Alright, Rusty here. Let's have a look at what Tainohama's got cooking. Gotta be straight with you—these next few days are a bit of a write-off. The swell is tiny and the wind's all wrong, so we're looking at a real slow start. But hold onto your board, because the second half of this outlook is a whole different story.

The first real chance to get wet doesn't come until the morning of Friday, the 21st. There's a tiny 3ft of south swell, but it's glassy, so it's clean. It's not going to blow anyone's mind, but it's something. The combined swell energy is weak (175). Saturday the 22nd is similar—a 3ft SSW swell, glassy again in the morning. Still just scratching the surface, but it's rideable. This pattern of small, clean-ish surf hangs around until Monday the 24th, where a new, longer-period SE groundswell starts to show, hitting 4ft with a 16-second period. The energy jumps to a moderate 745, but the wind is onshore, making it messy.

Now, this is where it gets interesting. Tuesday the 25th is the first real standout. Morning looks excellent: a solid 8ft of SE groundswell, 15-second period, glassy conditions. That's a lot of water moving, with very strong wave energy (2276). This one's for experienced surfers. If you're not comfortable with size, sit this one out. Afternoon sees it bump up to 8ft, but the wind goes onshore, so the window is the morning.

Then the main event—Wednesday, the 26th of August. This is the one you've been waiting for, if you're an expert. We're looking at a massive 13ft of SSE swell with a very long 17-second period. The combined energy is a massive 9737. The wind goes cross-offshore in the afternoon, so it'll be clean and powerful. This is expert territory only, and the long period will make the sets big and clean at this reef setup.

Thursday the 27th, the swell peaks around 15ft from the ESE with 11-second period, and we get proper offshore wind from the N in the morning. Exceptional conditions again, but huge and for experts only. The energy is immense at 9105.

By the 28th and 29th, the swell drops and the wind turns onshore with a risk of thunderstorms. Messy. But don't worry, there's another pulse coming. On Monday the 31st, the swell is back up to 7ft from the SE, and we get clean, cross-offshore wind from the NE. A cracking morning for experienced surfers. Tuesday the 1st of September repeats the formula with an 12ft SE swell and clean conditions in the morning. Another solid day.

Into the second week, the size drops but the wind stays favorable. Wednesday the 2nd and Thursday the 3rd see cleaner conditions with offshore to cross-offshore winds, but the swell settles to a more manageable 6ft to 8ft. Clean but not huge.

So, to wrap it up: the first week is a bust until Tuesday the 25th. The absolute standouts for experienced, big-wave surfers are the mornings of Wednesday the 26th and Thursday the 27th of August. If you're not an expert, hold out for the cleaner, smaller days around the 31st of August and 1st of September. The water temperature is around 83°F, which is about average for this time of year.

Stay safe out there.

Rusty

Short Range Forecast

Mostly dry. Warm (max 29°C on Thu morning, min 25°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 32°C on Tue afternoon, min 25°C on Sun night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
0
0
1
0
1
0
0
3
3
2
4
8
8
9
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.8
S
9
0.9
S
9
0.9
S
10
0.8
SSW
9
0.8
SSW
9
0.7
SSW
9
0.6
SSW
8
0.8
SSW
9
0.7
SE
15
1.6
SE
17
2.1
SE
16
2.4
SE
17
3
SE
16
4
SE
16
4.5
SE
17
5.5
SE
16
Wave Graph
Metric surfscale
Energy kJ
29
25
25
99
127
145
108
110
82
55
88
233
1371
2140
3134
4467
7473
11651
14316
Wind (km/h)
10
SSW
5
S
15
S
10
SW
5
SE
15
S
10
SSW
5
ESE
10
S
5
SW
5
SE
15
S
10
SW
5
SE
15
S
10
SW
10
NE
10
ENE
15
NE
Wind State
cross-on
on
cross-on
cross-on
glassy
cross-on
cross-on
glassy
cross-on
glassy
on
on
cross
cross-on
on
cross
cross-off
cross
cross-off
High Tide
9:13PM1.77m
10:45AM1.47m
9:48PM1.69m
12:49PM1.39m
10:41PM1.61m
3:26PM1.47m
00:26AM1.55m
4:19PM1.60m
2:18AM1.59m
4:51PM1.71m
3:30AM1.70m
5:17PM1.80m
Low Tide
4:09AM0.63m
3:44PM1.13m
5:20AM0.68m
4:37PM1.30m
7:01AM0.68m
7:27PM1.39m
8:35AM0.60m
9:25PM1.30m
9:39AM0.48m
10:14PM1.17m
10:26AM0.38m
10:50PM1.03m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:26
5:28
5:28
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:44
6:43
6:42
6:40
6:39
6:37
6:37
 mm
15
Temp °C
26
29
29
26
29
28
26
29
29
27
29
29
26
29
29
26
30
32
28
Feels °C
30
32
32
30
32
30
30
32
32
31
32
32
29
32
31
30
32
35
31
  • 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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