Tainohama surfForecast / Shikoku / Japan

information circle16 Day Weather and Surf, issued 2 pm 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 1.7m and 8s period with a secondary swell of 0.6m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Tainohama in the next 16 days are 4.0m 8s and forecast to arrive on Sunday (May 24) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (May 25) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 22nd May)5.5ft (1.7m) 8s
Best Surf 3AM (Fri 22nd May)8ft (2.5m) 8s
Most Powerful12AM (Sun 24th May)13ft (4.0m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 17mm), heaviest on Fri night. Warm (max 25°C on Thu morning, min 18°C on Fri night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 162mm), heaviest during Sat night. Warm (max 25°C on Mon morning, min 18°C on Sun night). Winds decreasing (fresh winds from the SE on Sat night, calm by Mon afternoon).

Wed
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
0
0
0
2
2
1
0
0
0
0
0
2
1
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
ESE
10
0.8
ESE
10
1.6
S
7
1.9
SSW
7
1.7
SSW
8
1.2
SSW
7
1
S
7
0.6
SSE
7
2.3
ESE
7
2.5
ESE
8
4
SE
8
1.8
SE
8
1.2
SE
8
0.9
ESE
8
0.7
SE
7
0.5
S
7
0.7
S
6
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
1.7
S
6
Wave Graph
Metric surfscale
Energy kJ
178
125
240
390
373
164
100
35
473
845
2047
450
192
93
56
24
40
41
39
38
203
Wind (km/h)
10
S
15
SSW
20
SSW
25
SW
10
N
10
N
15
N
5
ENE
30
ESE
35
ESE
35
SE
20
E
20
NNW
20
NNW
10
NNE
5
E
10
SSW
10
SSE
20
SSE
15
SSE
25
SSW
cross-on
cross-on
cross-on
cross-on
cross-off
off
off
cross
cross-on
cross-on
cross-on
cross-on
off
off
cross-off
glassy
cross-on
on
on
on
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
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
8:59AM0.49m
light rain
part cloud
cloud
light rain
rain showers
rain showers
part cloud
rain showers
light rain
light rain
heavy rain
heavy rain
rain showers
clear
clear
clear
part cloud
rain showers
rain showers
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:56
4:54
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
7:02
2
1
1
1
9
3
4
105
51
1
1
2
5
1
Temp °C
23
23
25
24
23
24
23
20
20
21
21
21
20
19
25
24
21
23
23
22
24
26
26
25
23
25
23
21
17
17
19
19
21
19
19
26
26
23
24
23
23
23
Swell 1
Height (m)
Direction
Period (s)
0.9
ESE
10
0.8
ESE
10
0.8
ESE
9
0.8
ESE
9
0.6
ESE
10
1.2
SSW
7
1
S
7
0.6
SSE
7
0.2
SSW
6
1.8
SE
8
1.2
SE
8
0.9
ESE
8
0.7
SE
7
0.5
S
7
0.7
S
6
0.5
S
6
0.5
SSE
6
0.4
ESE
10
0.5
SE
16
Energy kJ
178
125
113
108
61
164
100
35
4
450
192
93
56
24
40
20
20
38
118
Swell 2
Height (m)
Direction
Period (s)
0.6
SSE
7
0.6
ESE
10
0.5
ESE
9
0.5
SW
7
1.5
SSW
8
1
SSW
7
0.8
SSW
7
0.6
SSW
7
0.5
SE
6
0.3
ESE
11
0.4
ESE
10
0.4
ESE
10
0.1
SE
13
0.4
ESE
10
Energy kJ
35
63
50
23
234
114
71
42
20
22
41
39
7
33
Swell 3
Height (m)
Direction
Period (s)
0.3
NE
3
0.3
NE
4
0.4
ESE
10
0.4
ENE
9
0.3
ESE
11
0.4
NE
4
0.2
ESE
8
0.1
SE
15
0.1
SE
15
0.2
SSE
18
0.4
SE
11
Energy kJ
2
2
35
29
22
7
6
9
9
30
32
Wind waves
Height (m)
Direction
Period (s)
1.1
S
6
1.6
S
7
1.9
SSW
7
1.7
SSW
8
0.5
NE
3
0.6
N
4
0.4
E
3
2.3
ESE
7
2.5
ESE
8
4
SE
8
0.6
NE
4
0.7
NE
4
0.5
NE
4
0.7
NNE
4
0.2
WSW
2
0.7
SE
4
1.7
S
6
Energy kJ
80
240
390
373
5
10
2
473
845
2047
11
16
9
18
1
16
203
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
2
2
2
1
1
1
1
4
2
2
1
1
1
1
1
1
1
1
Distance (km)
3
3
3
3
0
0
0
64
311
406
32
32
0
0
0
51
21
36
454
32
32
Best forecast wave conditions in Shikoku
Rating
(10 max)
2
2
2
2
3
2
1
1
4
3
2
2
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
3
3
2
1
1
1
1
4
3
2
2
1
2
1
1
1
1
2
Header Global
Rating
(10 max)
4
4
5
4
5
5
7
6
5
5
8
5
5
5
4
4
4
4
4
4
4
  • 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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