Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 2 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
27.9°C
1.3° 

Asakawa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Asakawa surf forecast from 17 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 3PM (local time) - 10ft (3.0m), 14s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Saturday 19 Sep, 3PM (local time) - 10ft (3.0m), 14s period, ESE swell with 4,102 kJ wave energy.
  • Next surfable swell (1★+): Friday 18 Sep, 9PM (local time) - 5ft (1.6m), 10s period with ESE swell.

Best Forecast Surf Conditions for Asakawa this week:

The surf forecast for Asakawa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 9PM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.1m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Asakawa in the next 16 days are 3.0m 14s and forecast to arrive on Saturday (Sep 19) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Sep 21) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 18th Sep)5ft (1.6m) 10s
Best Surf 3PM (Sat 19th Sep)10ft (3.0m) 14s
Most Powerful 3PM (Sat 19th Sep)10ft (3.0m) 14s

Table - best surf conditions forecast for Asakawa over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 28°C on Sat morning, min 23°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Sun afternoon, min 20°C on Mon night). Wind will be generally light.

Thu
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
3
2
4
5
4
3
3
4
4
2
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SE
9
1.4
ESE
8
2.4
E
9
2.4
E
9
1.5
ESE
10
2.1
ESE
13
3
ESE
14
3
ESE
13
3
ESE
12
3
ESE
12
3
ESE
13
2.2
ESE
12
1.4
ESE
11
0.5
E
10
0.4
ESE
9
0.3
ESE
9
0.2
SSE
9
0.2
SSE
9
0.2
SSE
9
0.2
SSE
9
Wave Graph
Metric surfscale
Energy kJ
77
250
901
971
464
1420
4102
3210
2355
2512
2432
1407
486
52
34
15
8
8
8
8
Wind (km/h)
15
NE
10
ENE
5
ENE
10
SE
0
WSW
10
NE
15
NE
15
N
20
N
20
N
15
NNW
20
NNW
10
N
15
NNW
15
N
10
NE
5
NW
5
ENE
5
ESE
5
NW
Wind State
cross-off
cross
cross
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
off
glassy
glassy
off
High Tide
8:24PM1.57m
10:38AM1.28m
8:45PM1.47m
1:48PM1.23m
9:10PM1.37m
3:50PM1.33m
11:43PM1.27m
4:02PM1.43m
2:13AM1.33m
4:20PM1.53m
3:17AM1.45m
4:39PM1.62m
Low Tide
3:36AM0.53m
2:53PM1.12m
4:39AM0.64m
2:46PM1.23m
6:31AM0.69m
8:58PM1.25m
8:18AM0.63m
9:37PM1.13m
9:16AM0.53m
10:01PM0.99m
9:56AM0.44m
10:26PM0.84m
part cloud
part cloud
clear
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:48
5:48
5:48
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:06
6:04
6:02
6:01
6:00
5:59
 mm
Temp °C
27
24
26
26
24
28
28
25
28
28
24
27
28
21
27
27
22
27
25
23
Feels °C
27
26
29
28
28
30
29
27
28
27
24
26
27
20
27
27
23
29
28
25
  • Map Icons:
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  • 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 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 16 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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