Nunoshima surfForecast / Shikoku / Japan

information circle16 Day Weather and Surf, issued 8 am Tuesday 19 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Nunoshima surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nunoshima sea temperature is
21.3° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Nunoshima this week:

The surf forecast for Nunoshima over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 20) at 3AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.4m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nunoshima in the next 16 days are 2.2m 8s and forecast to arrive on Thursday (May 21) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (May 22) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 20th May)2ft (0.6m) 11s
Best Surf 9PM (Thu 21st May)7ft (2.2m) 8s
Most Powerful 9PM (Thu 21st May)7ft (2.2m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 16mm), heaviest on Wed morning. Warm (max 24°C on Thu afternoon, min 19°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Fri night. Warm (max 24°C on Fri morning, min 18°C on Fri night). Wind will be generally light.

Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
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
2
1
0
1
0
0
0
1
0
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)
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
1.1
S
6
1.7
S
6
1.8
SSW
7
1.3
SSW
7
1
S
7
0.6
SSW
7
1
SE
6
1.7
ESE
7
1.9
SE
6
1.6
SE
6
0.9
SE
6
0.7
SE
6
0.5
SE
6
0.5
SE
8
0.6
SE
8
0.5
SE
8
Wave Graph
Metric surfscale
Energy kJ
71
72
92
90
84
83
239
330
191
103
37
59
244
287
196
60
35
16
31
37
31
Wind (km/h)
10
S
20
S
10
SW
0
ESE
5
SSW
15
SSW
20
SSW
25
SW
5
N
10
NNW
20
N
5
SSE
20
ESE
20
ESE
15
ESE
0
NW
10
S
5
W
5
ENE
5
S
5
SSW
cross-on
cross-on
cross
glassy
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
glassy
on
on
on
glassy
cross-on
cross-off
glassy
cross-on
cross
High Tide
8:10PM1.63m
6:55AM1.69m
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
Low Tide
1:16PM0.01m
1:26AM0.95m
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
clear
clear
part cloud
mod rain
light rain
part cloud
light rain
thunderstorm
rain showers
clear
clear
rain showers
light rain
light rain
light rain
part cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
4:58
4:56
4:56
4:56
4:54
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:58
6:59
7:00
7:00
7:00
7:01
6
4
1
2
3
3
2
3
5
Temp °C
23
23
20
21
22
22
23
24
22
24
24
19
19
20
19
22
23
19
24
24
21
21
21
22
24
25
25
22
24
25
22
22
19
18
18
19
22
23
20
25
25
23
Swell 1
Height (m)
Direction
Period (s)
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
0.6
SE
10
0.6
ESE
9
0.5
SE
9
1.3
SSW
7
1
S
7
0.6
SSW
7
0.5
ESE
9
0.1
SW
6
0.1
SW
6
0.2
ESE
11
0.9
SE
6
0.7
SE
6
0.5
SE
6
0.5
SE
8
0.6
SE
8
0.5
SE
8
Energy kJ
71
72
92
90
84
79
58
41
191
103
37
47
1
2
12
60
35
16
31
37
31
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
11
0.4
SSE
7
0.5
S
6
0.5
SE
9
0.4
SE
10
0.5
SSE
7
0.3
SSE
7
0.2
SSW
6
0.2
ESE
11
0.2
ESE
10
0.4
SSW
7
0.4
SSW
7
0.3
SSW
6
0.2
SSW
6
Energy kJ
18
15
21
36
24
31
9
4
11
10
16
16
8
3
Swell 3
Height (m)
Direction
Period (s)
0.1
S
8
0.3
ESE
10
0.4
SW
7
0.2
ESE
8
0.2
ESE
10
0.2
ESE
11
0.2
ESE
11
Energy kJ
1
20
11
6
11
12
11
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
3
0.7
SSE
6
1.1
S
6
1.7
S
6
1.8
SSW
7
0.6
N
3
0.6
N
4
1
SE
6
1.7
ESE
7
1.9
SE
6
1.6
SE
6
0.4
NE
3
0.2
N
3
0.3
NNE
3
0.2
NNE
3
Energy kJ
3
35
83
239
330
8
10
59
244
287
196
2
1
2
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
2
2
2
1
1
1
1
1
2
1
1
1
1
1
1
Distance (km)
4
34
4
0
4
4
4
4
0
0
2
0
308
501
79
0
34
2
0
4
20
Best forecast wave conditions in Shikoku
Rating
(10 max)
1
1
1
2
1
2
2
2
3
2
1
2
3
4
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
1
2
1
2
2
3
3
2
1
2
2
1
3
4
2
1
1
1
1
Header Global
Rating
(10 max)
4
4
4
5
5
4
4
4
4
5
5
7
4
8
7
5
5
4
5
4
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 Nunoshima Surf forecast

The above surf forecast table for Nunoshima provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nunoshima can be found by selecting the local surf guide option on the grey menu. Our Nunoshima 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 (Nunoshima) 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 Nunoshima 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.

Nunoshima is 19 km (12 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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