Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 2 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
27.6° C
0.7° 

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


Asakawa surf forecast from 18 Jul 2026:

  • Best quality surf: Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s period, SE swell with offshore 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, 12AM (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 12AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.2m and 3s is also forecast. Another secondary swell of 0.4m and 3s is also forecast. The wind is predicted to be offshore 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 0.4m 8s period and expected on Tuesday (Jul 21) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 24th Jul)1ft (0.3m) 18s
Best Surf12AM (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

Right, let’s have a look at what’s on the cards for Asakawa. It’s a point break that’s fairly exposed, but it’s inconsistent, so we’re not gonna be spoiled for choice. The water temp is sitting at 82°, which is pretty normal for this time of year, so no surprises there.

The first decent surf worth paddling out for doesn’t show up until the morning of Friday the 24th of July. It’s small, only 1ft from the SE, with a very long period of 18 seconds. The wind is glassy from the NE, so it’ll be clean. The combined energy is weak (86), so don’t expect much push, but it’s a start. The afternoon turns messy with cross-onshore wind, so that’s a write-off.

Saturday the 25th sees a bit more energy, 1ft from the SE, period around 16 seconds, energy climbing to 137. The morning has cross-shore wind, but the afternoon goes glassy, so the afternoon session is the pick for a little fun on small, clean waves. Sunday the 26th is similar – 1ft, glassy morning, but the afternoon gets onshore and ugly.

Monday the 27th brings a small bump: 2ft from the S in the morning, glassy, energy at 231 – moderate now. The afternoon pushes to 2ft from the SSE, but the wind goes onshore, making it a bit marginal.

Now, here’s the standout. Tuesday the 28th of July. The morning delivers 6ft from the SSE, period 15 seconds, and the energy absolutely fires up to 1429. The wind is glassy from the SE. This is excellent surf for experienced surfers – clean, long-period groundswell hitting a point break. That’s your best bet, no question. The afternoon gets bigger at 7ft, but the wind turns onshore, so it’s a bit messier.

Wednesday the 29th holds solid. 10ft from the SSE in the morning, period 15 seconds, energy at 3979. The wind is cross-off from the NNE, clean. This is big, powerful, and only for the experts. The afternoon stays at 10ft with a stiffer cross-off breeze, still clean but raw.

After that, things get blown out. Thursday the 30th has strong winds from the north at 25 mph, making it a write-off for paddle surfing – this setup looks more interesting for kite surfing than anything else. The swell drops through the end of July and into August, with poor conditions and strong winds. By the 2nd of August, there’s a bit of height (4ft to 4ft), but the wind is cross-onshore or onshore, and the energy is moderate. The 3rd of August sees a bigger swell, 6ft to 7ft from the ESE, but the wind is onshore, so it’s messy and marginal.

So, to sum it up: the real gem is Tuesday the 28th of July morning – clean, glassy, solid groundswell. Wednesday the 29th is for the experienced crew only. The rest of the window is mostly small, choppy, or blown out.

Rusty.

Short Range Forecast

Light rain (total 8mm), mostly falling on Tue afternoon. Warm (max 31°C on Sun morning, min 26°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Wed afternoon. Warm (max 33°C on Fri morning, min 27°C on Wed night). Wind will be generally light.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
1
1
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
ESE
9
0.3
ESE
10
0.4
SE
9
0.4
ESE
9
0.4
SE
7
0.3
ESE
7
0.2
ESE
11
0.3
ESE
11
0.3
ESE
11
0.3
ESE
11
0.2
ESE
10
0.2
ESE
11
0.4
SE
10
0.4
SE
10
0.3
SE
18
0.3
SE
18
0.3
SE
18
0.3
SE
16
0.4
SE
16
0.4
SE
16
0.4
SE
16
Wave Graph
Metric surfscale
Energy kJ
17
18
20
31
13
9
11
23
22
22
11
11
25
25
50
49
49
42
91
90
86
Wind (km/h)
5
S
10
S
5
WSW
5
S
10
S
5
W
5
ESE
10
SSW
5
WNW
5
ESE
10
SSW
5
WNW
5
SE
10
S
5
NW
5
NE
5
S
5
NW
5
E
5
SE
5
W
Wind State
on
on
cross
cross-on
on
glassy
glassy
cross-on
cross-off
glassy
cross-on
cross-off
glassy
cross-on
off
glassy
cross-on
off
cross
glassy
glassy
High Tide
9:39PM1.67m
9:44AM1.49m
10:10PM1.62m
10:46AM1.35m
10:42PM1.56m
12:10PM1.25m
11:21PM1.50m
2:11PM1.24m
00:16AM1.45m
3:54PM1.32m
1:31AM1.43m
4:48PM1.42m
2:45AM1.46m
Low Tide
3:11PM0.45m
3:49AM0.67m
3:45PM0.65m
4:40AM0.66m
4:20PM0.84m
5:41AM0.66m
5:01PM1.01m
6:53AM0.64m
6:12PM1.14m
8:11AM0.59m
8:12PM1.20m
9:17AM0.51m
9:41PM1.17m
clear
clear
clear
clear
thunderstorm
clear
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:05
5:07
5:07
5:07
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:12
7:10
7:09
7:09
7:08
7:08
7:07
 mm
1
1
4
2
1
3
2
2
3
2
2
1
2
7
2
Temp °C
31
30
27
31
30
28
30
31
28
30
31
28
31
31
28
33
31
28
30
30
27
Feels °C
35
34
32
35
35
34
36
36
33
36
36
33
37
36
33
38
36
33
34
35
32
  • 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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