Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 2 am 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
25.3° 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 13 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 9AM (local time) - 3.5ft (1.0m), 10s period, SSW swell with glassy winds.
  • Most powerful swell: Tuesday 14 Jul, 9AM (local time) - 3.5ft (1.0m), 10s period, SSW swell with 209 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 9AM (local time) - 3.5ft (1.0m), 10s 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 Tuesday (Jul 14) at 9AM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.4m and 12s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Asakawa in the next 16 days are 1.0m 10s and forecast to arrive on Tuesday (Jul 14) at 9AM. 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+) 9AM (Tue 14th Jul)3.5ft (1.0m) 10s
Best Surf 9AM (Tue 14th Jul)3.5ft (1.0m) 10s
Most Powerful 9AM (Tue 14th Jul)3.5ft (1.0m) 10s

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


The Lowdown

G’day, I’m Rusty. Let’s wade into this one.

Alright, look – the next few weeks are a mixed bag for Asakawa. There’s a real dry spell to start, with barely a ripple worth paddling for. Then, right at the end of the forecast period, we get a bit of a pulse. The standout window is around the 28th and 29th, with some cleaner, more energetic swell. Overall, it’s a patience game.

Right now, through the middle of July, it’s flat and uninspiring. Tuesday morning the 14th offers the best of a weak bunch: a small 3ft SSW swell, but it’s only got a 10-second period and the combined energy is a weak 247. The water is sitting at 78°, which is a bit colder than normal for this time of year. The glassy conditions will make it look pretty, but honestly, it’s just surfable, not worth rushing out for. After that, the swell drops right off. From Wednesday the 15th all the way through to Sunday the 27th, we’re stuck with tiny, weak waves – mostly under 2ft and with period dipping as low as 7 seconds. The energy values are in the double digits or low triple digits, a sign of very weak wave power. The wind is often onshore or cross-shore, and the comments are all “poor surf conditions.” There’s a brief moment on the 18th with a glassy morning, but the swell is only 2ft. It’s a real waiting game. The 24th and 25th see a bit of a spike in period, hitting 18 seconds on the 24th, but the swell height is still tiny at 1.0ft, so it’s not doing anything for us.

Now, the turnaround. The 28th of July, Tuesday morning, is the standout. Asakawa is a point break, so it favours that longer-period groundswell we start seeing. The swell jumps to 4ft from the SE, with a solid 11-second period. The combined energy is a moderate 367, and the wind is clean, cross-offshore from the NE. This is the best-looking window of the whole forecast. The optimum swell direction is SE, so this is a perfect match. The water is a bit colder than average still, but the conditions are clean and the wave state is “clean.” The crowd situation at Asakawa can be “sometimes” busy, so you might have some company, but it’ll be worth it.

The 29th, Wednesday morning, is also solid. Another 4ft swell, this time from the SSE, with a 10-second period. The energy is 278, and the wind is again cross-offshore from the NE, keeping things clean. It’s a close second to the 28th, but that morning’s slightly longer period gives it the edge. The afternoons both days get a bit messy with onshore wind and a risk of thunderstorms, so hit it early.

Forget the kites; the wind is too light for that. This is a paddle surfer’s game, but only for those with patience. The 28th and 29th mornings are the only real reasons to get excited.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Wed afternoon. Warm (max 32°C on Tue morning, min 27°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Fri afternoon. Warm (max 31°C on Fri morning, min 26°C on Fri night). Wind will be generally light.

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
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
0
0
0
0
1
0
0
0
0
0
0
1
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
SSW
10
0.9
SSW
10
0.7
SSW
9
0.7
SSW
9
0.8
SSW
8
0.8
SSW
8
0.8
SSW
7
0.6
SSW
7
0.6
SSW
7
0.6
SSW
7
0.3
ESE
9
0.3
ESE
10
0.5
SE
10
0.6
ESE
9
0.7
ESE
9
0.6
ESE
9
0.5
SE
8
0.4
SE
8
0.4
SE
9
0.4
SSE
8
0.4
SE
8
Wave Graph
Metric surfscale
Energy kJ
209
157
86
84
80
76
70
37
33
34
17
18
50
55
65
49
33
18
20
27
17
Wind (km/h)
5
E
5
SSE
5
WSW
5
ENE
10
S
5
N
5
E
10
SSE
5
NW
5
NE
5
ENE
5
WSW
5
NE
10
S
5
SSE
10
SE
10
SSE
5
WSW
10
SE
10
S
5
WSW
Wind State
glassy
on
cross
cross
on
glassy
cross-on
on
off
glassy
cross
glassy
glassy
on
on
on
on
glassy
on
on
glassy
High Tide
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
9:44AM1.49m
10:10PM1.62m
Low Tide
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
3:49AM0.67m
3:45PM0.65m
clear
clear
clear
clear
thunderstorm
clear
part cloud
clear
part cloud
part cloud
thunderstorm
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:01
5:03
5:03
5:03
5:05
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:13
7:13
7:12
7:12
7:12
7:10
 mm
1
2
2
2
Temp °C
32
31
29
31
31
28
31
30
28
31
29
27
29
29
27
29
29
27
28
28
26
Feels °C
36
36
35
35
36
34
35
34
33
34
33
33
33
33
33
33
33
33
32
32
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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