Tainohama Surf Break

Lat Long: 33.74° N 134.57° E

Tainohama Surf Forecast and Surf Report

Issued: 2 am 20 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, 3PM (local time) - 16ft (5.0m), 17s period, SE swell with onshore winds.
  • Most powerful swell: Tuesday 25 Aug, 9PM (local time) - 20ft (6.0m), 16s period, SE swell with 19,275 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 6AM (local time) - 3ft (0.9m), 9s 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 Friday (Aug 21) at 6AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Tainohama in the next 16 days are 6.0m 16s and forecast to arrive on Tuesday (Aug 25) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 7s period and expected on Thursday (Aug 27) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 21st Aug)3ft (0.9m) 9s
Best Surf 3PM (Tue 25th Aug)16ft (5.0m) 17s
Most Powerful 9PM (Tue 25th Aug)20ft (6.0m) 16s

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


The Lowdown

Alright, I’ve looked at the charts for Tainohama. It’s a reef setup, and it’s a pretty advanced wave. To be honest, it’s a bit of a weird start – we’ve got a few days of nothing really happening. The first solid surf we can talk about is around Thursday the 24th of August, but even then it’s marginal. The water temp is sitting at 83°, which is pretty normal for this time of year – nothing wild there.

Thursday morning on the 24th, we’ve got a swell building – 6 ft from the SE with a period of 17 seconds. That’s a long period groundswell, which means energy, but it’s also coming straight onshore with a light S breeze. The combined energy is moderate (2600). Still, it’s looking a bit tricky with the tide and wind. By the afternoon, the swell jumps to 8 ft (4107 energy), still from the SE, but it’s onshore and getting bigger. Not the best for a paddle.

Now, the real standout is Tuesday the 25th of August. Early morning, the wind swings NE – light cross-offshore – and the swell is a solid 15 ft from the SE, period 17 seconds. The energy is massive (11759). This is groundswell, and it’s going to be breaking clean. The break is a reef, so that long period will wrap in nicely. But look, this is for experts only – 15 ft is serious. The afternoon gets even bigger, 16 ft (15454 energy), but the wind turns onshore, and it’s too big even for this spot. The morning is the call.

After that, it gets messy. Wednesday the 26th and Thursday the 27th are blown out with strong SE winds, big stormy swell, and rain. The size drops but the wind wrecks it. By Friday the 28th, we’re back to smaller, marginal stuff – 7 ft from the SE, but onshore wind and not much quality.

There’s a bit of a gap through the weekend, but then Monday the 31st of August looks promising again. Early morning, we’ve got glassy conditions, ENE wind at 3 mph, and a 5 ft S swell with a period of 13 seconds. The energy is solid (1081), and it’s clean. This is a good option for experienced surfers – not too big, but well shaped. The afternoon stays glassy with no wind, 5 ft S swell, energy at 903. That’s a nice window.

The first few days of September are a mixed bag. The 1st is marginal, but the 2nd of September has moderate offshore winds from the N – 4 ft and 4 ft from the S, clean waves, but the energy is low (302-420). It’s a fun little session, but nothing to get too excited about. After that, from the 3rd, the swell fades away to tiny 1.0-2 ft – not worth a paddle.

So, if you’re an expert, Tuesday morning the 25th of August is the big one – massive, clean, and powerful. For the regular crew, Monday the 31st of August is your best bet – glassy, manageable, and fun.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Some drizzle, heaviest during Tue night. Warm (max 30°C on Tue morning, min 25°C on Sun night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
1
0
0
0
0
0
0
0
2
3
3
7
9
!
!
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)
0.4
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
0.7
SSW
9
0.5
SE
14
1.1
SE
15
1.8
SE
17
2.5
SE
17
3.5
SE
17
4.5
SE
17
5
SE
17
6
SE
16
5.5
SE
14
5
SE
13
4.5
SE
13
Wave Graph
Metric surfscale
Energy kJ
25
25
99
127
145
108
108
82
54
90
91
542
1826
3974
7382
11654
15417
18963
11441
8627
6945
Wind (km/h)
10
S
15
S
10
SW
5
SE
15
S
10
SW
5
S
15
S
10
SW
10
S
15
S
10
SW
10
SSE
15
S
5
SW
10
NE
10
SE
5
NE
25
ESE
30
SE
40
SE
Wind State
on
on
cross-on
glassy
cross-on
cross-on
on
cross-on
cross
cross-on
on
cross
on
on
cross-on
cross-off
on
cross-off
cross-on
on
cross-on
High Tide
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
4:23AM1.82m
5:43PM1.86m
Low Tide
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
11:05AM0.31m
11:22PM0.88m
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
thunderstorm
mod rain
thunderstorm
<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
5:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:42
6:40
6:39
6:37
6:37
6:36
 mm
1
11
10
37
Temp °C
29
29
26
29
29
26
29
29
26
29
29
25
29
29
25
30
30
28
27
27
25
Feels °C
32
32
30
33
32
30
31
31
30
32
31
28
32
31
29
33
33
32
28
27
26
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Tainohama:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Tainohama surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest