Nunoshima surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 pm Wednesday 10 Dec 2025 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
21.0° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Nunoshima this week:

The surf forecast for Nunoshima over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 14) at 6PM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.4m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Nunoshima in the next 12 days are 1.2m 7s and forecast to arrive on Sunday (Dec 14) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 6s period and expected on Friday (Dec 12) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sun 14th Dec)1.5ft (0.5m) 9s
Best Surf 6PM (Sun 14th Dec)1.5ft (0.5m) 9s
Most Powerful 9AM (Sun 14th Dec)4ft (1.2m) 7s

Table - best surf conditions forecast for Nunoshima over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 17°C on Thu morning, min 3°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the N by Fri morning).

Days 3-6 Weather Summary Heavy rain (total 28mm), heaviest during Sat night. Very mild (max 14°C on Sat night, min 5°C on Mon night). Wind will be generally light.

Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wed
17
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SE
0.4
SE
0.3
ESE
0.3
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
1
SSE
1.2
SSW
0.6
SSW
0.8
SE
0.6
SE
0.5
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
Period(s) (?)101111101111101010477999999988
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2830232211121011940160411176440292120201818
Wind
(km/h)
5
NW
5
SW
15
SW
15
NNW
30
NNE
30
N
30
N
15
N
10
NE
25
S
25
NW
25
NW
10
WNW
15
NW
25
NW
15
NNW
10
NNW
5
ESE
5
NW
5
W
0
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcrosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
offoffoffoffoffoffcross-
off
glassoffcross-
off
glass
High Tide
/ height (m)
10:33AM
1.49
9:48PM
1.37
11:23AM
1.46
11:15PM
1.29
12:16PM
1.45
12:54AM
1.28
1:07PM
1.47
2:22AM
1.34
1:55PM
1.50
3:32AM
1.42
2:40PM
1.55
4:27AM
1.51
3:22PM
1.60
Low Tide
/ height (m)
3:35AM
0.36
4:20PM
0.89
4:30AM
0.50
5:34PM
0.82
5:34AM
0.64
6:49PM
0.70
6:45AM
0.75
7:54PM
0.55
7:55AM
0.83
8:49PM
0.39
8:57AM
0.87
9:36PM
0.23
9:49AM
0.90
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wed
17
Sunrise-6:54--6:56--6:56--6:56--6:58--6:58--6:58-
Sunset--4:52--4:52--4:52--4:53--4:53--4:53--4:54
cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
heavy rain
rain showers
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
Rain (mm)
---------244----------
Temp. °C1117171398599141311710106111171314
Feels °C (?)91313100-1-24598434319941012
  • 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 12 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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