Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 8 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
29.0° C
1.6° 

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


Asakawa surf forecast from 31 Jul 2026:

  • Best quality surf: Thursday 6 Aug, 12AM (local time) - 20ft (6.0m), 18s period, SE swell with glassy winds.
  • Most powerful swell: Thursday 6 Aug, 9AM (local time) - 23ft (7.0m), 18s period, SE swell with 32,408 kJ wave energy.
  • Next surfable swell (1★+): Saturday 1 Aug, 9PM (local time) - 1.5ft (0.4m), 11s 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 Saturday (Aug 01) at 9PM. The primary swell is predicted to be 0.2m and 18s period with a secondary swell of 0.4m and 11s. Another secondary swell of 0.4m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Asakawa in the next 16 days are 7.0m 18s and forecast to arrive on Thursday (Aug 06) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (Aug 02) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 1st Aug)1.5ft (0.4m) 11s
Best Surf12AM (Thu 6th Aug)20ft (6.0m) 18s
Most Powerful 9AM (Thu 6th Aug)23ft (7.0m) 18s

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


The Lowdown

Right, let’s have a look at what’s on offer for Asakawa. This is a point break that’s fairly exposed to the swell, but it’s inconsistent and can get crowded sometimes.

The water is sitting at 84°F at the start, which is a touch warmer than normal for this time of year.

The first few days are a write-off, with hardly any swell and poor conditions. Friday the 31st and Saturday the 1st of August are flat and glassy but not worth a paddle. Sunday the 2nd of August is where things start to get interesting. We’ve got a clean morning with light cross-offshore winds from the NNE, and a small 2ft ESE swell starting to push in. It’s not big, but the period is a very long 18 seconds, so that’s proper groundswell energy. The combined energy is moderate (335). The afternoon builds to 4ft with the same clean wind, and the energy jumps to 647. This is the pick of the early run, but it’s still small. For a point break, that long period means the waves will wrap in nicely and have good shape, so it’s worth a session if you’re keen.

Monday the 3rd gets a bit bigger, 5ft in the morning from the ESE, but the wind goes cross-shore and the energy is strong (909). The afternoon hits 6ft with an onshore wind and risk of thunderstorms, so it’s messy. By Tuesday the 4th, the swell jumps to 10ft ESE, but the wind is cross-onshore, and the energy is very strong (5298). That’s getting big for a point break, and the conditions are marginal. Wednesday the 5th of August is the standout. The morning sees 15ft from the SE with light cross-shore wind and a period of 17 seconds. The energy is massive (10308). This is a big, powerful groundswell. The afternoon is even bigger at 16ft, with cross-onshore wind but still clean enough. This is only for experienced surfers – over 8ft, it’s expert territory. The point break will handle that long period well, but it’s a serious session.

Thursday the 6th is a monster. 23ft from the SE, with a 18-second period in the morning. The energy is insane (32408). The wind is cross-shore and favourable, but the swell is too big for this break. It’s not a beginner spot right now. After that, it starts to drop, but it stays big and messy through the end of the week with onshore winds and storms. Friday the 7th sees 20ft but with poor conditions.

The second week is a lot quieter. From Sunday the 9th onwards, the swell drops to 6ft and smaller, with mostly cross-onshore winds and poor conditions. There’s not much to get excited about until Wednesday the 12th of August, when a small clean pulse of 3ft from the ESE returns with light cross-offshore winds from the NNE. The energy is weak (280), but it’s clean. Thursday the 13th and Friday the 14th are small and ordinary, with only 2ft to 3ft. The glassy morning on Saturday the 15th of August with 2ft is surfable but very ordinary.

So, the true standout is Wednesday the 5th of August. That’s the day with the biggest, most powerful swell and the best wind. If you’re an expert, that’s your window. The second best is Sunday the 2nd of August – small but clean with that long-period groundswell.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 35°C on Sun afternoon, min 27°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

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

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
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
1
2
2
2
2
2
3
4
3
7
7
8
!
!
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
9
0.3
SE
13
0.4
SE
10
0.4
SE
10
0.4
SE
11
0.4
SE
16
0.5
ESE
18
1.1
ESE
16
1.2
ESE
15
1.4
ESE
15
1.7
ESE
16
2.5
ESE
18
3
ESE
18
3
ESE
18
4
ESE
17
4.5
SE
17
5
SE
17
6
SE
18
7
SE
18
7
SSE
17
7
SSE
17
Wave Graph
Metric surfscale
Energy kJ
24
26
23
28
29
64
174
636
621
867
1393
3777
5132
6059
9156
10308
13773
21236
32408
29237
25918
Wind (km/h)
5
SE
5
SSE
5
WNW
5
E
10
SSE
5
NW
10
NNE
10
NNE
10
NNE
10
ENE
10
SE
10
SE
5
SE
15
SE
5
SE
10
E
10
SE
5
ENE
15
ENE
20
E
15
NE
Wind State
glassy
on
cross-off
glassy
on
off
cross-off
cross-off
cross-off
cross
on
cross-on
cross-on
on
glassy
cross
cross-on
glassy
cross
cross-on
cross-off
High Tide
7:36PM1.73m
7:00AM1.77m
8:00PM1.74m
7:37AM1.73m
8:25PM1.74m
8:17AM1.67m
8:51PM1.72m
9:03AM1.58m
9:19PM1.69m
9:59AM1.47m
9:52PM1.64m
11:18AM1.36m
10:35PM1.58m
Low Tide
1:02PM0.16m
1:15AM0.74m
1:31PM0.21m
1:47AM0.67m
2:00PM0.31m
2:22AM0.61m
2:31PM0.44m
3:01AM0.57m
3:03PM0.60m
3:47AM0.54m
3:40PM0.78m
4:44AM0.52m
4:27PM0.97m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:13
5:15
5:16
5:16
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:02
7:01
7:00
7:00
6:59
6:59
 mm
2
1
1
3
Temp °C
32
32
28
33
33
29
34
35
31
31
29
27
30
28
26
30
31
27
31
31
27
Feels °C
35
36
32
36
36
33
37
39
35
35
34
33
34
31
30
33
35
32
33
32
30
  • 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