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Surf Forecasts:

Asakawa surfForecast / Shikoku / Japan

information circle12 Day Weather and Surf, issued 8 pm Wednesday 07 Jan 2026 JST
Forecast update in hr  min  s Forecast update imminent
Asakawa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Asakawa sea temperature is
17.9° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Asakawa this week:

The surf forecast for Asakawa over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jan 14) at 3AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.1m and 9s. Another secondary swell of 0.1m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Asakawa in the next 12 days are 1.9m 8s and forecast to arrive on Sunday (Jan 11) 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 2.5m 8s period and expected on Sunday (Jan 11) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 14th Jan)3.5ft (1.0m) 6s
Best Surf 3AM (Wed 14th Jan)3.5ft (1.0m) 6s
Most Powerful12AM (Sun 11th Jan)6ft (1.9m) 8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 13°C on Sat morning, min 1°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary A dusting of new snow. Icy conditions (max 12°C on Sat night, min -2°C on Sun night). Winds decreasing (fresh winds from the NW on Sun night, calm by Mon morning).

Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wed
14
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
S
0.1
SE
0.1
S
0.1
SE
0.1
SE
0.1
S
0.1
E
0.7
SW
1.2
SW
1.9
SW
0.9
SW
1.3
WSW
0.8
SW
0.1
E
0.3
SW
0.3
SW
0.4
SW
0.8
SW
0.9
SW
0.9
SW
0.6
SW
Period(s) (?)149131091210458848106544676
Wave
Graph
(?)Metric surfscale
Energy kJ (?)43443321966440946578264423527534
Wind
(km/h)
10
WNW
10
NNW
10
NNW
15
NNW
5
NNW
10
SE
5
WNW
5
WSW
20
SW
30
W
15
WNW
15
W
25
NW
5
NW
5
SSE
10
NW
5
WSW
15
SW
10
W
5
NW
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffoffoffcross-
on		cross-
off		glasscrosscross-
off		cross-
off		cross-
off		cross-
off		offoncross-
off		glasscrosscross-
off		cross-
off		glass
High Tide
/ height (m)
9:30AM
1.66
9:01PM
1.56
10:02AM
1.61
9:54PM
1.41
10:34AM
1.56
11:00PM
1.29
11:10AM
1.51
12:37AM
1.21
11:54AM
1.47
2:45AM
1.23
12:54PM
1.44
4:12AM
1.33
2:04PM
1.44
Low Tide
/ height (m)
2:52AM
0.29
3:19PM
0.79
3:26AM
0.48
4:08PM
0.78
4:00AM
0.67
5:05PM
0.76
4:36AM
0.85
6:12PM
0.73
5:24AM
1.01
7:30PM
0.68
6:51AM
1.13
8:41PM
0.59
8:44AM
1.17
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wed
14
Sunrise-7:07--7:07--7:07--7:07--7:07--7:07--7:07-
Sunset--5:09--5:09--5:10--5:12--5:13--5:14--5:15
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
cloud
snow showers
clear
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C7883895131312550452111291515
Feels °C (?)443-3552775-1-1-911-27851313
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Asakawa surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Asakawa at:
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Information about the Asakawa Surf forecast

The above surf forecast table for Asakawa provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Asakawa can be found by selecting the local surf guide option on the grey menu. Our Asakawa 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 (Asakawa) 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 Asakawa 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.

Are you planning a holiday in Shikoku? If you are looking for accommodation near Asakawa, camping, hotels and holiday cottages in Shikoku, consider staying in Anan which is 41 km (25 miles) away. Other places in and around Shikoku where you can find information about places to rent, and car hire include Muroto which is 44 km (27 miles) away, Komatsushima, Aki and Kamojima.

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