Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 2 pm 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
26.4°C
2.2° 

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


Asakawa surf forecast from 17 Oct 2026:

  • Best quality surf: Thursday 22 Oct, 12AM (local time) - 10ft (3.0m), 15s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Thursday 22 Oct, 9AM (local time) - 10ft (3.0m), 16s period, S swell with 4,880 kJ wave energy.
  • Next surfable swell (1★+): Sunday 18 Oct, 3AM (local time) - 3ft (0.9m), 7s 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 Sunday (Oct 18) at 3AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Asakawa in the next 16 days are 3.0m 16s and forecast to arrive on Thursday (Oct 22) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Thursday (Oct 22) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 18th Oct)3ft (0.9m) 7s
Best Surf12AM (Thu 22nd Oct)10ft (3.0m) 15s
Most Powerful 9AM (Thu 22nd Oct)10ft (3.0m) 16s

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


Short Range Forecast

Light rain (total 9mm), mostly falling on Sun morning. Warm (max 27°C on Tue morning, min 18°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Tue afternoon, min 12°C on Thu night). Wind will be generally light.

Sat
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
1
2
0
3
2
2
6
4
3
4
3
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
ESE
9
0.6
ESE
6
2
ESE
7
2
ESE
7
1.6
SE
8
1.3
SE
7
1.3
SE
9
1.2
SE
9
1.3
SE
9
1.5
SE
12
1.9
SSE
14
1.5
SSE
17
2.5
SSE
16
3
SSE
15
3
S
16
2.2
S
14
3
S
16
2.5
S
15
2.5
S
15
2.2
SSW
15
Wave Graph
Metric surfscale
Energy kJ
15
32
400
374
291
194
238
225
266
645
1310
1259
3381
4503
4880
2005
4018
3390
2701
1948
Wind (km/h)
20
NNE
10
N
15
SE
20
SE
10
S
10
SW
15
SSW
10
WSW
5
SSW
15
SSW
10
WSW
20
SW
20
SW
10
NNE
20
N
25
NNE
20
N
15
NNE
10
NE
5
NE
Wind State
cross-off
off
cross-on
on
on
cross-on
cross-on
cross
glassy
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
High Tide
8:12PM1.46m
12:05PM1.30m
8:49PM1.35m
2:03PM1.35m
11:03PM1.25m
2:47PM1.44m
1:33AM1.28m
3:15PM1.53m
2:47AM1.40m
3:39PM1.61m
3:39AM1.54m
4:04PM1.69m
Low Tide
3:58AM0.58m
3:53PM1.23m
5:24AM0.67m
7:37PM1.21m
7:06AM0.67m
8:46PM1.07m
8:17AM0.63m
9:18PM0.90m
9:06AM0.57m
9:46PM0.71m
9:47AM0.54m
10:16PM0.52m
clear
rain showers
light rain
cloud
rain showers
rain showers
thunderstorm
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
6:07
—
—
6:09
—
—
6:09
—
—
6:11
—
—
6:11
—
—
6:11
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:27
—
—
5:25
—
—
5:24
—
—
5:22
—
—
5:22
—
—
5:21
—
—
5:20
—
 mm
—
1
3
—
3
1
1
—
—
—
—
—
—
—
—
—
—
—
—
1
Temp °C
23
20
22
22
22
25
25
23
27
27
23
27
27
23
20
19
14
21
21
21
Feels °C
20
21
22
21
23
26
26
26
29
28
25
26
27
26
16
14
9
19
20
22
  • 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 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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