Asakawa Surf Break

Asakawa Surf Forecast and Surf Report

Lat Long: 33.63° N 134.38° E

Issued: 8 am 06 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
24.5° C

1.1°C colder than average for this time of year

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


Asakawa surf forecast from 6 Jul 2026:

  • Best quality surf: Friday 10 Jul, 3AM (local time) - 11ft (3.5m), 16s period, S swell with glassy winds.
  • Most powerful swell: Friday 10 Jul, 9PM (local time) - 15ft (4.5m), 18s period, S swell with 11,327 kJ wave energy.
  • Next surfable swell (1★+): Monday 6 Jul, 3PM (local time) - 3ft (0.9m), 14s 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 Monday (Jul 06) at 3PM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.4m and 6s. Another secondary swell of 1.0m and 6s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Asakawa in the next 16 days are 4.5m 18s and forecast to arrive on Friday (Jul 10) at 9PM. Winds are predicted to be onshore 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 07) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Mon 6th Jul)3ft (0.9m) 14s
Best Surf 3AM (Fri 10th Jul)11ft (3.5m) 16s
Most Powerful 9PM (Fri 10th Jul)15ft (4.5m) 18s

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


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let's talk about what's on the menu at Asakawa over the next couple of weeks. This is a point break that's inconsistent, so don't expect a party every day, but when it lines up, it can be a gem.

Right now, we're looking at a bit of a slow start. Through the early days of July, we've got some small stuff rolling in, but nothing that's really screaming "paddle out." The water temp is sittin' around 76°, a touch colder than usual for this time of year, so a thin wetsuit might not go astray if you're sensitive.

The real action fires up around Wednesday the 8th. We've got a solid 8ft swell from the SSE, with a period of 17 seconds – that's proper groundswell, folks. The combined energy is chunky at 4071 (moderate wave energy). Winds are light and offshore, so it should be clean. This is getting into that bigger range, so it's probably more for the experienced crew.

Thursday the 9th is even bigger – 10ft from the SSE early, with energy at 4817 (moderate wave energy). Still offshore winds, so if you've got the skills and the board for it, this could be a serious session.

And then, hold onto your boardshorts for Friday the 10th. We're looking at a peak: 13ft from the S, 17-second period, and the energy is massive at 10553 (strong wave energy). Winds are light cross-onshore, which could put a bit of texture on it, but this is big, powerful swell. The optimum direction for this break is SE, so the S direction might be a little off, but at this size, it's still gonna be pumping, and definitely for experts only. The combined energy at 10553 is off the charts.

Saturday the 11th keeps the size up with 13ft from the SSW, energy at 9194 (strong wave energy), but we've got a bit more wind, still cross-onshore. This is a serious run of swell, but it's bowling-ball territory.

After that, things wind down. Sunday the 12th drops to 8ft from the SSW, and then we've got a mellow patch for most of the second week. The inconsistency of this break really shows here – there's a gap of several days with no real standout.

Then, hold on, there's a late pulse on Saturday the 18th of July: 5ft from the S at 12 seconds, with glassy winds in the morning. Energy is 791 (weak wave energy), but the conditions could be sweet for a point break.

But the true standout, the one you want to circle on your calendar, is Sunday the 19th of July. We've got 10ft from the ESE, with a 13-second period, and the wind is glassy all day. The energy is 3320 (moderate wave energy), and the swell direction is a great match for the optimum SE. This is about as good as it gets for Asakawa – big, clean, and from the right direction. It's expert territory, but if you can handle it, this is the day.

Given this break is a point, that long-period swell will wrap in nicely and give you some proper lines. And with it being 'sometimes' crowded, expect company if the word gets out.

So, to wrap it up: the first week has some big, powerful swell for the brave, but the real gem is that Sunday the 19th. A bit of a quiet period in between, but that's Asakawa for you. She likes to make you wait.

Rusty.

Short Range Forecast

Moderate rain (total 11mm), heaviest on Mon afternoon. Warm (max 26°C on Mon morning, min 22°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Thu night. Warm (max 27°C on Thu morning, min 23°C on Sat night). Wind will be generally light.

Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
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
2
2
2
2
3
4
4
5
4
3
4
7
7
8
6
5
5
3
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SE
15
0.9
SE
14
1.1
SE
13
0.8
SE
15
1.1
SE
16
1.7
SE
16
2.3
SE
17
2.5
SSE
17
3
SSE
16
3
SSE
16
2.5
SSE
14
3
SSE
16
4
S
17
4
S
17
4
S
18
4
SSW
17
3.5
SSW
17
3
SSW
16
2.3
SSW
14
1.4
SSW
13
1.5
S
12
Wave Graph
Metric surfscale
Energy kJ
149
301
406
280
620
1384
3016
4012
4410
4761
2518
4400
8137
10478
10743
9194
7911
4802
1984
711
650
Wind (km/h)
5
SSW
5
ENE
10
N
5
E
10
SSE
5
SSE
10
SSE
10
SSE
0
WNW
5
SE
10
SE
5
ESE
5
ESE
10
SSE
5
ESE
10
SE
10
SE
0
SSE
5
SSE
10
SSE
5
SW
Wind State
glassy
glassy
cross-off
glassy
on
on
on
on
glassy
on
on
cross-on
cross-on
on
cross-on
cross-on
on
glassy
on
on
cross
High Tide
9:16AM1.51m
10:17PM1.62m
10:17AM1.42m
10:55PM1.60m
11:38AM1.36m
11:41PM1.58m
1:20PM1.35m
00:36AM1.58m
3:00PM1.43m
1:41AM1.60m
4:18PM1.55m
2:47AM1.65m
5:16PM1.67m
Low Tide
3:39PM0.51m
4:28AM0.75m
4:23PM0.66m
5:30AM0.68m
5:17PM0.83m
6:40AM0.57m
6:30PM0.98m
7:54AM0.44m
8:00PM1.08m
9:03AM0.28m
9:23PM1.10m
10:04AM0.12m
10:28PM1.08m
thunderstorm
thunderstorm
part cloud
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
rain showers
rain showers
part cloud
rain showers
thunderstorm
thunderstorm
cloud
part cloud
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:58
4:58
4:58
4:58
5:00
5:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:15
7:14
 mm
4
5
1
1
4
1
4
2
1
2
Temp °C
26
26
24
25
25
24
26
26
23
27
27
24
25
26
25
25
25
24
26
26
25
Feels °C
32
31
28
29
28
28
28
28
27
29
29
28
29
30
29
29
29
28
29
29
29
Swell 1
Height (m)
Direction
Period (s)
0.6
SE
15
0.9
SE
14
1.1
SE
13
0.9
SE
12
1.1
SE
16
1.7
SE
16
2.3
SE
17
2.5
SSE
17
3
SSE
16
3
SSE
16
2.5
SSE
14
3
SSE
16
4
S
17
4
S
17
4
S
18
4
SSW
17
3.5
SSW
17
3
SSW
16
2.3
SSW
14
1.4
SSW
13
1.5
S
12
Energy kJ
149
301
406
260
620
1384
3016
4012
4410
4761
2518
4400
8137
10478
10743
9194
7911
4802
1984
711
650
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
6
0.4
SSW
6
0.5
SSW
6
0.8
SE
15
0.9
SE
12
1.1
ESE
7
1.1
SSE
20
0.8
ESE
6
2
S
17
1.5
S
18
1.7
SSW
20
0.3
SE
12
0.3
SE
12
1.2
SSE
12
0.5
SE
9
Energy kJ
10
13
22
280
224
111
961
42
2237
1468
2416
23
23
439
42
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
10
0.2
E
7
0.4
SE
18
0.8
ESE
8
0.3
SW
6
0.5
SSE
22
0.3
E
8
0.2
E
10
0.5
SE
10
0.1
SE
14
Energy kJ
21
4
79
81
6
263
12
8
52
7
Wind waves
Height (m)
Direction
Period (s)
1
SW
6
0.4
NNE
3
0.9
ESE
8
1.3
E
7
1.1
E
6
1
E
6
1.1
E
5
1
E
5
Energy kJ
73
3
110
152
94
64
56
53
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
3
4
4
5
5
5
5
7
9
9
9
9
7
5
4
2
3
Distance (km)
0
0
0
0
11
14
19
19
0
19
19
19
19
19
43
43
19
0
4
11
2
Best forecast wave conditions in Shikoku
Rating
(10 max)
1
2
3
3
3
4
7
5
5
6
9
8
9
9
9
9
9
5
4
2
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
3
3
3
4
7
5
5
6
9
8
9
9
9
9
9
5
4
2
4
Header Global
Rating
(10 max)
6
7
8
7
5
5
9
6
9
9
5
6
5
4
5
5
4
5
4
4
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Asakawa:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Asakawa surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest