Nunoshima surfForecast / Shikoku / Japan

information circle16 Day Weather and Surf, issued 8 pm Thursday 21 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
21.4° 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 Friday (May 22) at 3AM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 0.4m and 9s. 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 28) 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 0.9m 4s period and expected on Friday (May 22) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 22nd May)4.5ft (1.3m) 7s
Best Surf 3AM (Fri 22nd May)4.5ft (1.3m) 7s
Most Powerful12AM (Thu 28th 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

Heavy rain (total 26mm), heaviest during Fri night. Warm (max 24°C on Fri morning, min 19°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the ESE by Fri night).

Days 5-7 Weather Summary

Heavy rain (total 84mm), heaviest during Wed afternoon. Warm (max 24°C on Mon morning, min 20°C on Sun night). Wind will be generally light.

Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thu
28
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
3
1
1
0
0
0
0
0
0
2
1
0
0
0
0
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)
2.1
SSW
7
1
S
7
0.8
S
7
1.3
SE
6
1.9
SE
7
2.2
ESE
7
1.9
SE
7
1.3
SE
7
1.5
ESE
7
1.3
ESE
8
0.6
SE
8
0.5
SE
8
0.7
SE
6
0.5
SE
6
1.1
SE
5
1.4
SE
6
1.9
SE
7
1.6
SE
6
2.2
SSW
8
1.3
S
8
1.2
S
8
Wave Graph
Metric surfscale
Energy kJ
495
106
61
111
305
499
386
189
234
192
48
32
40
21
71
129
296
206
605
203
172
Wind (km/h)
0
NE
5
NNW
10
N
25
ESE
25
ESE
30
ESE
25
ESE
5
ESE
10
S
10
W
5
SE
10
S
5
SW
10
S
15
S
15
E
10
SE
25
ESE
25
ESE
20
ESE
10
SE
glassy
cross-off
cross-off
on
on
on
on
on
cross-on
cross-off
glassy
cross-on
cross
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
on
High Tide
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
3:26PM1.51m
3:02AM1.62m
4:18PM1.61m
Low Tide
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
9:09PM0.79m
9:42AM0.33m
thunderstorm
part cloud
part cloud
mod rain
light rain
light rain
mod rain
part cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
cloud
heavy rain
heavy rain
heavy rain
heavy rain
mod rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:54
4:54
4:54
4:54
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
7:00
7:00
7:00
7:01
7:01
7:02
7:04
2
9
1
5
9
26
26
32
19
7
7
Temp °C
23
24
23
21
20
20
21
22
22
21
24
24
20
24
23
21
21
21
21
22
23
25
24
24
22
17
18
20
23
22
22
25
25
21
24
23
20
23
20
20
24
26
Swell 1
Height (m)
Direction
Period (s)
1.5
S
8
1
S
7
0.8
S
7
0.4
SW
6
0.1
SW
6
0.1
SE
11
1.3
SE
7
1.1
SE
7
1
SE
6
0.6
SE
8
0.5
SE
8
0.2
ESE
8
0.3
ESE
8
0.2
ESE
10
0.1
SE
15
0.1
SE
15
0.1
SE
11
1.2
SSW
7
1.3
S
8
1.2
S
8
Energy kJ
258
106
61
10
2
5
189
115
69
48
32
6
14
10
9
8
5
164
203
172
Swell 2
Height (m)
Direction
Period (s)
0.5
SE
9
0.4
SE
10
0.4
SE
10
0.2
ESE
10
0.4
S
7
0.2
ESE
11
0.2
ESE
11
0.2
ESE
10
0.1
SE
15
0.1
S
11
0.1
SE
10
0.9
ESE
7
0.3
SSW
11
0.3
SE
10
Energy kJ
42
24
23
10
15
11
11
11
9
2
4
68
23
15
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
8
0.1
SE
7
0.1
SW
8
0.2
ESE
10
0.1
SW
6
0.3
ESE
11
0.1
S
6
0.1
S
10
0.1
SE
14
0.3
SE
10
0.4
SE
10
0.1
SE
13
Energy kJ
2
2
2
10
1
23
1
2
8
15
24
7
Wind waves
Height (m)
Direction
Period (s)
2.1
SSW
7
0.6
NNW
4
0.9
N
4
1.3
SE
6
1.9
SE
7
2.2
ESE
7
1.9
SE
7
1.5
ESE
7
1.3
ESE
8
0.6
S
6
0.7
SE
6
0.5
SE
6
1.1
SE
5
1.4
SE
6
1.9
SE
7
1.6
SE
6
2.2
SSW
8
Energy kJ
495
11
28
111
305
499
386
234
192
30
40
21
71
129
296
206
605
Nearest Offshore or Glassy
Rating
(10 max)
3
1
1
1
1
1
2
2
2
2
1
1
1
2
1
2
1
2
2
2
2
Distance (km)
0
0
0
66
319
408
268
268
4
0
0
4
4
66
4
66
308
86
268
86
66
Best forecast wave conditions in Shikoku
Rating
(10 max)
3
2
1
1
2
3
3
1
1
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
3
2
1
1
1
1
4
2
4
3
3
1
1
2
2
2
2
2
3
2
2
Header Global
Rating
(10 max)
5
5
7
6
8
6
8
6
5
5
5
4
5
5
4
4
5
6
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 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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