Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 8 pm 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
28.2°C
1.0° 

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


Asakawa surf forecast from 8 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 12PM (local time) - 7.5ft (2.3m), 9s period, SSE swell with offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 9AM (local time) - 11ft (3.5m), 9s period, S swell with 1,797 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 12PM (local time) - 7.5ft (2.3m), 9s period with SSE 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 Wednesday (Sep 09) at 12PM. The primary swell is predicted to be 2.3m and 9s period with a secondary swell of 0.1m and 18s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Asakawa in the next 16 days are 3.5m 9s and forecast to arrive on Wednesday (Sep 09) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Sep 09) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Wed 9th Sep)7.5ft (2.3m) 9s
Best Surf12PM (Wed 9th Sep)7.5ft (2.3m) 9s
Most Powerful 9AM (Wed 9th Sep)11ft (3.5m) 9s

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


Short Range Forecast

Heavy rain (total 75mm), heaviest during Wed morning. Warm (max 27°C on Tue night, min 21°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 45mm), heaviest during Mon afternoon. Warm (max 28°C on Sun afternoon, min 24°C on Fri night). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
1
0
0
1
1
1
1
1
0
1
1
0
0
0
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SSE
10
3.5
S
9
1.8
SSE
8
1.1
SSE
8
1
SSE
8
1.1
SE
8
1
SSE
8
1.1
SE
8
1
SSE
8
0.8
SSE
7
0.6
S
7
0.4
SE
10
0.3
E
14
0.5
ESE
9
0.7
ESE
9
1.2
ESE
9
1.2
ESE
8
1.2
SE
9
1.5
ESE
9
Wave Graph
Metric surfscale
Energy kJ
1751
1797
479
173
140
140
120
136
123
62
35
30
35
46
73
197
188
216
368
Wind (km/h)
10
SSE
15
SW
15
N
25
N
20
NNE
15
NE
5
N
5
ENE
5
E
5
NE
5
NE
5
SE
0
ENE
5
ESE
10
SE
5
ESE
5
SE
5
SE
5
S
Wind State
on
cross-on
cross-off
cross-off
cross-off
cross-off
off
glassy
glassy
glassy
glassy
glassy
glassy
cross-on
cross-on
cross-on
glassy
cross-on
on
High Tide
3:59AM1.68m
5:21PM1.76m
4:49AM1.79m
5:47PM1.81m
5:34AM1.87m
6:13PM1.84m
6:15AM1.89m
6:37PM1.84m
6:54AM1.85m
7:00PM1.83m
7:31AM1.78m
7:22PM1.79m
Low Tide
10:28PM0.91m
10:41AM0.18m
11:04PM0.73m
11:20AM0.16m
11:38PM0.57m
11:55AM0.21m
00:11AM0.43m
12:27PM0.30m
00:43AM0.33m
12:57PM0.43m
1:15AM0.29m
1:24PM0.57m
1:46AM0.29m
rain showers
thunderstorm
rain showers
part cloud
part cloud
light rain
rain showers
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
5:41
5:43
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:19
6:17
6:16
6:15
6:14
6:13
6:10
 mm
29
22
16
3
2
1
2
2
4
9
5
2
7
4
12
49
Temp °C
27
27
24
22
24
24
23
26
26
25
27
26
25
27
28
25
26
25
25
Feels °C
33
32
26
21
24
25
25
30
31
30
32
31
30
31
31
29
30
30
28
  • 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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