Tainohama surfForecast / Shikoku / Japan

information circle16 Day Weather and Surf, issued 2 am Wednesday 20 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Tainohama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tainohama sea temperature is
21.3° C
(Which is normal for this time of year)

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 (May 22) at 12AM. The primary swell is predicted to be 2.3m and 8s period with a secondary swell of 1.7m and 8s. Another secondary swell of 0.6m and 10s 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 2.5m 8s and forecast to arrive on Friday (May 22) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (May 22) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 22nd May)7.5ft (2.3m) 8s
Best Surf12AM (Fri 22nd May)7.5ft (2.3m) 8s
Most Powerful 3AM (Fri 22nd May)8ft (2.5m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 8mm), mostly falling on Thu afternoon. Warm (max 24°C on Fri morning, min 19°C on Fri night). Winds decreasing (fresh winds from the SSW on Thu afternoon, light winds from the N by Fri morning).

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Sat night. Warm (max 25°C on Mon morning, min 19°C on Sat morning). Winds decreasing (fresh winds from the ESE on Sat night, calm by Mon night).

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
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
1
0
0
0
4
2
1
0
0
0
0
2
0
0
0
1
0
1
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
SE
10
0.9
ESE
10
0.8
ESE
10
1.7
S
7
2.2
SSW
7
2.3
SSW
8
1.3
SSW
8
1
SSW
7
1.3
ESE
8
2.2
ESE
7
2.1
ESE
7
0.8
ESE
11
1.8
E
10
1
ESE
10
0.8
ESE
10
0.7
ESE
10
0.4
ESE
11
0.4
ESE
11
0.6
ESE
10
0.6
ESE
10
0.4
ESE
10
Wave Graph
Metric surfscale
Energy kJ
157
178
125
286
472
700
196
105
216
459
432
156
593
179
105
90
45
38
68
67
39
Wind (km/h)
10
SSE
10
S
15
SSW
20
SSW
30
SSW
10
N
5
N
10
NNE
15
ESE
20
ESE
25
SE
30
ESE
10
E
10
S
5
SW
5
ENE
5
SE
10
WSW
0
ENE
10
SW
20
S
on
on
cross-on
cross-on
cross-on
off
off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross
glassy
cross
glassy
cross
on
High Tide
8:56PM1.57m
7:34AM1.61m
9:48PM1.50m
8:23AM1.50m
10:47PM1.46m
9:31AM1.39m
11:51PM1.44m
11:09AM1.31m
00:51AM1.46m
12:57PM1.32m
1:42AM1.50m
2:23PM1.41m
2:24AM1.56m
Low Tide
1:57PM0.10m
2:09AM1.00m
2:42PM0.22m
3:03AM1.03m
3:34PM0.37m
4:17AM1.03m
4:37PM0.51m
5:48AM0.97m
5:52PM0.63m
7:10AM0.84m
7:09PM0.71m
8:11AM0.67m
8:15PM0.75m
light rain
rain showers
part cloud
light rain
rain showers
rain showers
rain showers
part cloud
cloud
light rain
light rain
light rain
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
4:56
4:56
4:56
4:54
4:54
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:59
7:00
7:00
7:00
7:01
7:01
1
1
1
3
1
1
2
2
5
11
Temp °C
22
23
23
23
23
22
24
23
20
20
20
20
22
24
20
25
25
23
23
23
23
24
26
24
24
21
24
25
24
20
17
17
17
24
25
21
26
27
26
25
26
21
Swell 1
Height (m)
Direction
Period (s)
0.9
SE
10
0.9
ESE
10
0.8
ESE
10
0.8
ESE
9
0.7
SE
9
1.7
SSW
8
1.3
SSW
8
1
SSW
7
0.5
SW
7
0.3
SW
6
0.1
SW
6
1.4
ESE
6
1.3
ESE
10
1
ESE
10
0.8
ESE
10
0.7
ESE
10
0.4
ESE
11
0.4
SE
8
0.6
ESE
10
0.6
ESE
10
0.6
SE
4
Energy kJ
157
178
125
113
86
366
196
105
22
7
2
150
325
179
105
90
45
20
68
67
12
Swell 2
Height (m)
Direction
Period (s)
0.5
SSE
6
0.6
SSE
7
0.6
ESE
10
0.6
ESE
10
0.6
ESE
9
0.4
SSE
7
0.8
ESE
11
0.2
S
6
0.1
S
7
0.2
S
6
0.4
SE
8
0.4
ESE
11
0.3
S
6
0.2
S
6
0.4
ESE
10
Energy kJ
23
34
61
61
56
15
156
2
1
3
17
38
6
2
39
Swell 3
Height (m)
Direction
Period (s)
0.4
NE
4
0.1
E
16
0.2
S
6
0.3
S
6
0.1
SE
15
0.1
SE
15
0.1
SE
15
Energy kJ
6
5
3
7
9
9
9
Wind waves
Height (m)
Direction
Period (s)
0.9
SSE
5
1.3
S
6
1.7
S
7
2.2
SSW
7
2.3
SSW
8
0.4
NE
3
0.6
NNE
4
1.3
ESE
8
2.2
ESE
7
2.1
ESE
7
1.8
E
10
0.3
SE
3
0.4
SE
4
0.1
SW
6
Energy kJ
42
124
286
472
700
3
13
216
459
432
593
1
5
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
4
2
1
1
1
1
3
3
2
1
1
1
1
1
1
1
Distance (km)
3
3
3
3
32
0
0
0
64
311
406
64
64
64
3
19
0
18
0
18
32
Best forecast wave conditions in Shikoku
Rating
(10 max)
2
2
2
2
1
4
2
1
1
3
3
2
2
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
4
2
1
2
1
1
3
4
3
3
1
1
1
1
1
1
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
5
7
5
6
9
6
5
5
4
4
5
5
5
5
  • 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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