Tainohama Surf Break

Lat Long: 33.74° N 134.57° E

Tainohama Surf Forecast and Surf Report

Issued: 2 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tainohama sea temperature is
28.2° 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 21 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 3AM (local time) - 11ft (3.5m), 16s period, SSE swell with glassy winds.
  • Most powerful swell: Tuesday 25 Aug, 12PM (local time) - 13ft (4.0m), 16s period, SSE swell with 6,868 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 6AM (local time) - 2.5ft (0.8m), 9s period with SSW 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 22) at 6AM. The primary swell is predicted to be 0.8m 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 4.0m 16s and forecast to arrive on Tuesday (Aug 25) 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 22nd Aug)2.5ft (0.8m) 9s
Best Surf 3AM (Tue 25th Aug)11ft (3.5m) 16s
Most Powerful12PM (Tue 25th Aug)13ft (4.0m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the cards for Tainohama over the next couple of weeks.

Right off the bat, I gotta be upfront with you: it’s a rough start. We’ve got a solid block of poor conditions from Friday the 21st all the way through the weekend. That’s three full days where you’re better off waxing your board at home. The swell is small, the wind is onshore or cross-on, and it’s choppy. Nothing doing.

Things start to get interesting into the new week. Monday the 24th shows a pulse of energy arriving from the SE, with a swell around 4ft but the period jumps to 19 seconds. That’s a very long-period groundswell, which usually means clean, powerful lines, but at a beach setup it can break a bit too straight. The combined energy is a strong 1257, so there’s plenty of water moving. Still, conditions are only marginal, so don’t get too excited yet.

The standout window is shaping up to be Tuesday the 25th. Monday night’s swell builds, and by Tuesday morning we’re looking at a solid 12ft swell from the SSE with a period of 16 seconds. That’s a beast of a groundswell, and the combined energy is massive at 6794 – that’s serious grunt. This is big, powerful surf. If you’re not an expert, stay on the sand. The wind is light and offshore in the morning, so the face will be clean and lined up. The afternoon drops slightly to 13ft, still with clean offshore flow. This is the peak of the run, and waves will be heavy, hollow, and for experienced surfers only.

Wednesday the 26th is a mess. The swell is still big, but a strong cross-onshore SE wind and thunderstorm risk make it a write-off. The energy remains high, but the quality is gone. Thursday and Friday stay poor with onshore winds and rain.

After that, we get a little cleanup. Saturday the 29th is still a write-off, but Sunday the 30th sees some improvement – a smaller 4ft swell from the SE with a period of 12 seconds. The combined energy is weak to moderate at 439, and the wind is light and offshore in the morning. It’s not going to blow you away, but it’s rideable and clean.

The second week looks more promising but smaller. Monday the 31st through Tuesday the 1st of September offers the best of the later period. On Monday the 31st we’ve got a 4ft swell from the ESE with an 11-second period and a gentle offshore wind from the north. That’s clean, shoulder-high surf with a bit of push. Combined energy is moderate at 409. Tuesday the 1st holds similar – 3ft from the E, 11 seconds, and gentle offshore flow. Clean, fun, and user-friendly.

After that, it fizzles out again. Wednesday the 2nd drops in size, and by Thursday the 3rd it’s barely a ripple. A small pulse shows on Friday the 4th of September with a 4ft S swell and a 12-second period, light offshore wind – clean lines but not much power.

So, if you want the best of it, be on the water early Tuesday the 25th for big, expert-only waves, or if you’re after a more manageable session, aim for Monday the 31st or Tuesday the 1st of September for clean, waist-to-chest high waves with light offshore winds. The water temp is around 83°F, which is about normal for this time of year, so no wetsuit needed.

Overall, it’s a slow start, a solid punch mid-week, then another wait for the second week’s cleaner but smaller surf.
Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Heavy rain (total 67mm), heaviest during Thu morning. Warm (max 29°C on Mon afternoon, min 25°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SE by Thu morning).

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
0
0
0
0
3
2
6
6
5
6
0
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)
0.9
S
10
0.8
SSW
9
0.8
SSW
9
0.7
SSW
9
0.6
SSW
8
0.6
SSW
8
0.4
SE
13
0.7
SE
12
1.1
SE
19
2.2
SE
16
3.5
SSE
17
3.5
SSE
16
4
SSE
15
3.5
SSE
14
3.5
S
13
2.5
S
12
2
SSW
11
1.4
SSW
10
2.5
S
9
2.5
S
10
Wave Graph
Metric surfscale
Energy kJ
145
108
108
80
55
54
44
152
959
2600
5798
6760
6637
5530
4369
2261
933
370
1163
1325
Wind (km/h)
20
S
5
SW
5
S
15
S
10
SW
5
S
15
S
10
SSW
5
SSE
15
S
5
SSW
5
SSE
15
SSE
5
SSE
25
SE
25
SSE
25
SSE
35
SE
30
SSE
30
SSE
Wind State
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
on
glassy
on
on
glassy
cross-on
on
on
on
on
on
High Tide
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
5:06AM1.93m
6:07PM1.91m
Low Tide
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
11:40AM0.28m
11:52PM0.74m
clear
thunderstorm
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:28
5:28
5:28
5:30
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:42
6:40
6:39
6:37
6:37
6:36
6:35
 mm
1
1
5
7
12
23
19
24
84
Temp °C
29
26
29
29
26
30
29
26
28
29
26
29
29
26
28
27
26
26
26
26
Feels °C
31
30
32
32
30
33
31
30
32
32
30
32
32
31
30
29
28
25
26
27
  • 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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