Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 8 am 13 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
25.1° C
1.4° 

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


Asakawa surf forecast from 13 Jul 2026:

  • Best quality surf: Monday 13 Jul, 3PM (local time) - 4.5ft (1.4m), 11s period, SSW swell with glassy winds.
  • Most powerful swell: Monday 13 Jul, 3PM (local time) - 4.5ft (1.4m), 11s period, SSW swell with 447 kJ wave energy.
  • Next surfable swell (1★+): Monday 13 Jul, 3PM (local time) - 4.5ft (1.4m), 11s period with SSW 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 Monday (Jul 13) at 3PM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.3m 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 1.4m 11s and forecast to arrive on Monday (Jul 13) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Jul 14) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Mon 13th Jul)4.5ft (1.4m) 11s
Best Surf 3PM (Mon 13th Jul)4.5ft (1.4m) 11s
Most Powerful 3PM (Mon 13th Jul)4.5ft (1.4m) 11s

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


Alright folks, Rusty here. Let’s talk about what’s on the menu for Asakawa over the next couple of weeks.

We’ve got a bit of a slow cooker start, but there’s a promising lift on the horizon. The first bit of worthwhile surf kicks off on Monday the 13th. The real gem of the entire forecast is that Monday morning session. We’re looking at a clean 5ft SSW groundswell with a solid 12-second period. The wind is glassy from the ESE, so the surface will be like a mirror. The water is sitting at 77°, which is a bit colder than normal for this time of year, so you might want a thin suit. The combined energy is a moderate 682, which is enough to get you moving. This is the standout—get in the water early.

Monday afternoon stays fun with 5ft and glassy conditions, but the swell starts to ease. Tuesday morning the 14th is still surfable with 3ft and glassy, but it’s nothing to write home about. From Tuesday afternoon right through to the end of the week, things get pretty ordinary. The swell drops right off, and the wind goes onshore or cross-shore, making for poor conditions. You’ll be looking at a gap of several days with no real recommendations.

The next flicker of hope comes Sunday the 21st with a glassy morning and 3ft, but it’s “surfable” at best. The real return of energy is on Monday the 27th of July. That morning session looks excellent again: 5ft of SSE groundswell with an 11-second period, glassy east winds, and combined energy of 647 (moderate). That’s the second standout of the window, and it’s a Monday. Keep an eye on it, but the long-range call is a bit less certain.

Tuesday the 28th holds some marginal 3ft swell, but it’s nothing special.

So, for the best waves, lock in Monday the 13th morning and Monday the 27th morning. The rest of the time, you’re waiting for the wind to play nice. Asakawa is an inconsistent point break, so this blank run isn’t too surprising.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 32°C on Tue morning, min 27°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Fri night. Warm (max 30°C on Thu morning, min 25°C on Sat night). Wind will be generally light.

Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
2
1
0
1
1
0
1
1
0
1
0
0
0
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)
1.6
SSW
12
1.4
SSW
11
1.1
SSW
11
1
SSW
10
0.9
SSW
10
0.7
SSW
9
0.7
SSW
9
0.8
SSW
9
0.7
SSW
7
0.9
SSW
8
0.8
SSW
8
0.6
SSW
7
0.5
SSW
7
0.3
SE
10
0.3
SE
10
0.4
SE
9
0.4
ESE
12
0.9
ESE
10
0.8
ESE
9
0.7
ESE
9
0.4
SSE
9
Wave Graph
Metric surfscale
Energy kJ
658
447
292
209
157
86
84
86
38
95
64
42
27
15
15
20
53
151
101
65
29
Wind (km/h)
5
ESE
5
SE
5
NNW
5
ENE
5
SSE
5
W
5
E
10
S
5
NNW
5
E
5
ESE
5
NW
5
ENE
10
ESE
0
WSW
5
ESE
10
SE
5
SE
5
SSE
10
SSE
5
SSW
Wind State
glassy
glassy
off
glassy
on
glassy
glassy
cross-on
glassy
glassy
cross-on
glassy
cross
cross-on
glassy
cross-on
cross-on
on
on
on
glassy
High Tide
6:04PM1.75m
4:46AM1.81m
6:47PM1.80m
5:39AM1.86m
7:26PM1.81m
6:28AM1.88m
8:02PM1.79m
7:16AM1.84m
8:36PM1.76m
8:04AM1.75m
9:08PM1.72m
8:52AM1.63m
9:39PM1.67m
Low Tide
10:59AM-0.01m
11:22PM1.02m
11:49AM-0.08m
00:08AM0.95m
12:35PM-0.09m
00:52AM0.87m
1:18PM-0.04m
1:35AM0.79m
1:58PM0.09m
2:18AM0.73m
2:36PM0.26m
3:02AM0.69m
3:11PM0.45m
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
thunderstorm
rain showers
thunderstorm
light rain
rain showers
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:01
5:01
5:03
5:03
5:03
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:14
7:13
7:13
7:12
7:12
7:12
 mm
2
2
4
4
1
Temp °C
31
31
29
32
31
28
31
30
28
30
30
28
30
30
27
27
26
25
28
27
26
Feels °C
35
36
34
36
36
33
35
34
34
35
35
33
35
34
33
32
31
29
32
31
31
  • 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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