Nunoshima surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 am Thursday 11 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 0.6m and 9s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Nunoshima in the next 12 days are 0.8m 9s and forecast to arrive on Sunday (Dec 14) at 9PM. 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)2ft (0.6m) 9s
Best Surf 9PM (Sun 14th Dec)2.5ft (0.8m) 9s
Most Powerful 9PM (Sun 14th Dec)2.5ft (0.8m) 9s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 14mm), heaviest on Sat night. Very mild (max 18°C on Thu afternoon, min 3°C on Fri night). Winds decreasing (fresh winds from the N on Fri morning, calm by Sat night).

Days 3-6 Weather Summary Some drizzle, heaviest during Sun morning. Very mild (max 11°C on Sun morning, min 6°C on Sun night). Wind will be generally light.

Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SE
0.3
ESE
0.3
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.3
E
0.2
ESE
0.4
SE
0.8
SE
0.5
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.3
SE
0.3
SE
Period(s) (?)111110111110101011899999998888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3023221112101192172099413021191918181110
Wind
(km/h)
5
WSW
20
SW
15
NNW
35
NNE
35
N
25
N
15
N
10
ENE
5
SW
15
NNW
25
NW
10
NW
10
NW
20
NNW
10
NNW
5
NNW
5
E
5
WNW
5
WSW
5
SSE
10
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crossglassoffoffoffoffoffoffoffcross-
on
offcross-
off
glassoff
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)
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
10:20PM
0.10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Sunrise6:54--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-
part cloud
clear
rain showers
part cloud
clear
clear
clear
part cloud
heavy rain
rain showers
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
Rain (mm)
--1-----131-----------
Temp. °C1718139859910111061111711118141411
Feels °C (?)1214100-1-345873265298511118
  • 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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