Tainohama Surf Break

Lat Long: 33.74° N 134.57° E

Tainohama Surf Forecast and Surf Report

Issued: 2 am 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tainohama sea temperature is
28.7°C
1.1° 

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


Tainohama surf forecast from 25 Aug 2026:

  • Best quality surf: Friday 28 Aug, 6AM (local time) - 5ft (1.5m), 8s period, S swell with offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 6PM (local time) - 10ft (3.0m), 13s period, SSE swell with 2,986 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 6AM (local time) - 5ft (1.5m), 8s 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 28) at 6AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 1.4m and 8s. Another secondary swell of 0.2m and 11s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Tainohama in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Aug 25) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 28th Aug)5ft (1.5m) 8s
Best Surf 6AM (Fri 28th Aug)5ft (1.5m) 8s
Most Powerful 6PM (Tue 25th Aug)10ft (3.0m) 13s

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


The Lowdown

Alright, you salty dogs, let's talk Tainohama. It's a bit of a mixed bag over the next couple of weeks.

Right now, the water's a balmy 84°, which is a touch warmer than usual for this time of year.

So, starting Tuesday the 25th, we've got a solid 10-foot swell from the SSE, but it's bumpy. The wind is cross-on with a light breeze, giving it a messy look. The combined energy is a massive 4834, which is powerful, but it's not clean. This one is strictly for the advanced crew. That swell drops to 8 feet by the afternoon with more wind, making it choppy.

Wednesday the 26th sees the swell dropping to 6 feet, still cross-on and choppy. Thursday is a write-off with onshore winds and lumpy conditions.

Here's a glimmer. Friday morning the 28th. The swell drops to 4 feet from the south with a short period of 8 seconds, but the wind goes glassy. It's dead calm. That's a major positive for a clean session, even if the waves are small. The energy is a weak 224, so it's not punchy, but it'll be the cleanest we've seen. That glassy window continues into Saturday morning the 29th with 2-foot waves and calm conditions, though the energy is a tiny 81.

After that, we hit a quiet patch. From Sunday the 30th through Saturday the 5th of September, the waves are small, mostly under 3 feet, and a lot of it is blown out by onshore winds. There's a short bump on Tuesday the 1st of September with a 5-foot SE swell (period 13s, energy 709), but it's cross-on and choppy.

The real standout, the only true standout, comes at the very end. Look at Sunday the 6th of September. We get a 3-foot SW groundswell with a very long period of 12 seconds. The energy is still low at 333, but look at the wind – a light breeze from the NNE creating a cross-offshore flow. That's clean. Because Tainohama is a reef break, that long-period groundswell will wrap in nicely. It won't be big, but it will be clean and lined up.

Then on Monday the 7th and Tuesday the 8th of September, we see more offshore and clean conditions with 3 to 5-foot swell. The wind is offshore from the NNW and N, which is perfect. The shorter period on Tuesday (6 seconds) means it'll be softer and more playful. The energy is still low to moderate (218 to 305), but for clean, groomed waves, those are your best bets.

To call it straight: The best windows are Friday morning the 28th of August for a tiny, glassy session, and then the early week of September – specifically Sunday the 6th and Monday the 7th – for the cleanest, most lined-up conditions. Don't expect any massive, perfect swells; it's about waiting for the clean moments on smaller waves.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Thu night. Warm (max 30°C on Wed morning, min 26°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 18mm), heaviest on Sat afternoon. Warm (max 30°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
2
1
0
0
0
0
1
2
1
1
1
0
1
1
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)
3
SSE
14
2.5
SSE
13
2.5
SSE
12
1.9
S
12
1.6
S
12
1.3
SSW
11
1
SSW
10
1.2
SSE
10
1.2
S
9
1.2
S
8
1.1
S
8
0.7
SSE
7
0.6
SSW
8
0.9
SSW
8
0.7
SSW
8
0.6
S
8
0.6
S
8
0.4
SE
10
0.4
SSW
8
0.8
ESE
5
0.8
ESE
5
Wave Graph
Metric surfscale
Energy kJ
3875
2005
1961
1048
711
353
190
282
240
191
153
49
48
81
58
42
44
38
19
34
31
Wind (km/h)
10
S
20
S
15
SW
15
S
20
S
15
SSW
15
SSW
30
S
15
SW
5
N
0
S
5
NNW
0
ESE
10
SSW
5
WNW
0
E
10
S
10
SW
10
S
15
SSE
10
SE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
glassy
glassy
glassy
glassy
cross-on
cross-off
glassy
cross-on
cross
cross-on
on
on
High Tide
5:17PM1.80m
4:23AM1.82m
5:43PM1.86m
5:06AM1.93m
6:07PM1.91m
5:46AM2.00m
6:31PM1.94m
6:23AM2.03m
6:55PM1.95m
7:00AM2.02m
7:18PM1.94m
7:38AM1.95m
7:42PM1.92m
Low Tide
10:26AM0.38m
10:50PM1.03m
11:05AM0.31m
11:22PM0.88m
11:40AM0.28m
11:52PM0.74m
12:12PM0.30m
00:23AM0.62m
12:43PM0.37m
00:54AM0.53m
1:12PM0.47m
1:26AM0.48m
1:41PM0.60m
2:00AM0.46m
clear
clear
clear
rain showers
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:30
5:31
5:31
5:31
5:33
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
6:32
6:31
6:30
6:29
 mm
1
1
2
1
1
2
1
4
2
3
4
6
Temp °C
29
29
27
30
29
27
30
30
27
28
27
26
29
30
27
30
30
27
29
29
27
Feels °C
30
31
32
32
32
31
31
31
31
34
33
31
33
34
32
34
35
32
31
31
31
  • 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 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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