Nunoshima surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 pm Saturday 13 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 1.0°C warmer than normal for this time of year)


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 0.7m and 7s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Nunoshima in the next 12 days are 0.9m 9s and forecast to arrive on Sunday (Dec 21) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Sunday (Dec 14) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sun 14th Dec)2.5ft (0.7m) 7s
Best Surf 6PM (Sun 14th Dec)2.5ft (0.7m) 7s
Most Powerful12AM (Sun 21st Dec)3ft (0.9m) 9s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 6mm), mostly falling on Sat night. Very mild (max 12°C on Sat night, min 5°C on Sun night). Winds decreasing (fresh winds from the NW on Sun morning, calm by Tue morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 15°C on Fri afternoon, min 8°C on Thu night). Wind will be generally light.

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.1
SE
0.5
SSE
0.8
SSE
0.3
ESE
0.5
SE
0.5
SE
0.4
SE
0.4
SE
0.4
SE
0.4
SE
0.3
SE
0.3
SE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.2
ESE
0.3
SE
0.4
ESE
0.4
ESE
0.4
ESE
Period(s) (?)45711999998888101010101071010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)391562234242302119181097910101016213837
Wind
(km/h)
15
S
20
NNW
25
NW
10
WNW
15
NW
15
NNW
10
NW
5
NNW
5
ESE
5
WNW
5
W
10
S
15
N
25
N
20
NNE
10
NNW
0
NNW
0
S
5
NNW
5
N
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
offoffoffoffoffoffoffglasscross-
off
glasscross-
on
cross-
off
cross-
off
cross-
off
offglassglasscross-
off
cross-
off
glass
High Tide
/ height (m)
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
5:15AM
1.59
4:02PM
1.64
5:57AM
1.63
4:42PM
1.68
6:37AM
1.66
5:21PM
1.70
Low Tide
/ height (m)
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
10:35AM
0.91
11:01PM
-0.00
11:17AM
0.91
11:41PM
-0.07
11:56AM
0.90
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
Sunrise-6:56--6:58--6:58--6:58--7:00--7:00--7:01-
Sunset--4:53--4:53--4:53--4:54--4:54--4:54--4:55
mod rain
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
light rain
light rain
light rain
Rain (mm)
6-----------------111
Temp. °C121211711117111191414121213101415151517
Feels °C (?)9843563986111196881214141518
  • 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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