Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 2 am 24 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
28.4° 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 23 Jul 2026:

  • Best quality surf: Friday 24 Jul, 9AM (local time) - 1ft (0.3m), 18s period, SE swell with glassy winds.
  • Most powerful swell: Saturday 25 Jul, 3AM (local time) - 1.5ft (0.4m), 16s period, SE swell with 94 kJ wave energy.
  • Next surfable swell (1★+): Friday 24 Jul, 9AM (local time) - 1ft (0.3m), 18s period with SE 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 (Jul 24) at 9AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.4m 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 0.4m 16s and forecast to arrive on Saturday (Jul 25) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Jul 25) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Fri 24th Jul)1ft (0.3m) 18s
Best Surf 9AM (Fri 24th Jul)1ft (0.3m) 18s
Most Powerful 3AM (Sat 25th Jul)1.5ft (0.4m) 16s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at what's on the cards for Asakawa over the next couple of weeks.

First up, we've got a real slow start. The water is sitting at 83°, which is a touch warmer than normal for this time of year, so you won't need a thick suit. For the first week and a bit, we're looking at small, weak surf. The energy is low, with combined readings hanging around the 80 to 170 range. It's glassy though, especially in the mornings, and the wind is slight. The swell is tiny, only about 1 foot to 2 feet, coming from the SE. It's a long-period groundswell, up to 18 seconds, but there's just no power behind it. The conditions are surfable, but honestly, it's very ordinary. This stretch runs from Friday the 24th through to the end of July, and even into the first few days of August. It goes completely flat from the 30th of July, with the energy dropping to 34 and scores of 0. Up until the 3rd of August, the report basically says "poor surf conditions."

Now, the real story starts to shape up on Tuesday the 4th of August. Things get seriously interesting. The morning of the 4th sees a pulse of swell arrive, jumping to about 6 feet from the ESE with a period of 16 seconds. The combined energy kicks up to 1767, which is a solid moderate energy. The wind is glassy, and the conditions are described as excellent for experienced surfers. This is the standout session of the whole forecast. The swell direction is coming from the ESE, which is exactly what this point break wants – it's a perfect match. It's a long period groundswell, so expect proper lines. The wave heights are over 5 feet, so it's a bit much for beginners, but for anyone with a bit of experience, this is the one to circle.

The session continues to build into the afternoon of the 4th, hitting about 7 feet, but the wind swings onshore, making it a bit of a mixed bag.

Wednesday the 5th of August morning is also a cracker. Another 7 feet of ESE swell, with glassy winds and a combined energy of 2274. Again, excellent conditions for experienced surfers. The morning is your window.

Thursday the 6th of August morning is the biggest of the clean swell days. You're looking at 8 feet from the ESE, with a clean cross-offshore wind from the NE. The energy is now very strong at 3011. This is for experienced surfers only, as it's pushing the 8 feet mark. The afternoon gets a bit messy with cross-onshore wind, but the morning is gold.

After that, the wind cranks up. Friday the 7th of August is blown out by strong winds, and the swell gets huge. By Saturday the 8th of August, the swell is forecast to be a massive 23 feet to 25 feet. The combined energy reading is over 40,000. It's not a surfable option for Asakawa – it's just too big for this point, and the wind is onshore. It might look interesting for a kite surfer, but for us paddle-in guys, it's a no-go.

So, to wrap it up: the first week is a dud. The standout is the morning of Tuesday the 4th of August, with Wednesday the 5th and Thursday the 6th mornings also being excellent. Don't get your hopes up for the first week, but that second week has a couple of proper sessions lined up.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Fri afternoon. Warm (max 33°C on Sat morning, min 27°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Mon afternoon. Warm (max 32°C on Mon morning, min 26°C on Mon night). Wind will be generally light.

Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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)
0.3
SE
18
0.3
SE
18
0.3
SE
16
0.4
SE
16
0.4
SE
16
0.4
SE
16
0.4
SE
15
0.4
SE
15
0.4
SE
14
0.4
SE
14
0.4
SE
14
0.4
SE
14
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.5
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
49
49
42
91
90
87
78
76
74
72
70
65
49
49
48
48
48
47
23
23
23
Wind (km/h)
5
E
5
S
5
NNW
5
ENE
5
S
5
NW
5
ESE
0
SSE
5
WNW
5
ENE
5
SE
5
NW
5
ENE
5
SE
5
NW
0
ESE
5
SE
5
NNW
5
ENE
5
ESE
5
NW
Wind State
glassy
glassy
off
glassy
glassy
off
glassy
glassy
cross-off
glassy
glassy
off
glassy
glassy
cross-off
glassy
glassy
glassy
glassy
glassy
off
High Tide
3:54PM1.32m
1:31AM1.43m
4:48PM1.42m
2:45AM1.46m
5:23PM1.50m
3:43AM1.52m
5:52PM1.58m
4:30AM1.60m
6:20PM1.64m
5:10AM1.68m
6:46PM1.68m
5:48AM1.74m
7:11PM1.71m
Low Tide
8:12PM1.20m
9:17AM0.51m
9:41PM1.17m
10:08AM0.41m
10:33PM1.11m
10:50AM0.32m
11:10PM1.04m
11:27AM0.23m
11:43PM0.96m
12:00PM0.17m
00:13AM0.89m
12:32PM0.15m
00:44AM0.81m
clear
thunderstorm
clear
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
clear
clear
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:09
5:09
5:09
5:11
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:08
7:07
7:07
7:07
7:06
7:05
7:04
 mm
1
1
1
2
3
3
Temp °C
32
32
29
33
32
29
32
30
28
32
31
28
31
30
28
32
32
29
33
33
29
Feels °C
36
37
33
37
37
34
36
35
32
36
36
33
34
35
33
36
36
34
36
37
33
  • 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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