Asakawa Surf Break

Lat Long: 33.63° N 134.38° E

Asakawa Surf Forecast and Surf Report

Issued: 8 pm 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Asakawa sea temperature is
27.8° C
0.8° 

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


Asakawa surf forecast from 20 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 3PM (local time) - 2.5ft (0.8m), 10s period, S swell with glassy winds.
  • Most powerful swell: Tuesday 28 Jul, 3AM (local time) - 4.5ft (1.4m), 11s period, S swell with 457 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 0.4m and 4s 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 1.4m 11s and forecast to arrive on Tuesday (Jul 28) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 24th Jul)1ft (0.3m) 18s
Best Surf 3PM (Sun 26th Jul)2.5ft (0.8m) 10s
Most Powerful 3AM (Tue 28th Jul)4.5ft (1.4m) 11s

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


The Lowdown

G’day, Rusty here. Look, I’ll be straight with you – the next 16 days at Asakawa are a tough watch. It’s a point break, fairly exposed to swell, and it prefers an optimum swell from the southeast, but for the first week, we’re just not getting the goods. The first real surf we can talk about doesn’t show up until Friday, July 24, so there’s a solid gap of nothing worth paddling for from now until then.

Friday morning, July 24, we get a tiny 0.3ft of swell from the southeast, with a period of 18 seconds – that’s a long-period groundswell, which is a nice sign for a point, but the energy is still weak (74). It’s glassy though, so what’s there will be clean. But it’s ordinary, not something to get excited about.

Saturday, July 25, the morning brings a bit more – 0.4ft from the southeast, period dropping to 16 seconds, still long-period. The combined energy bumps up to 139 (moderate). It’s glassy again. It’s surfable, but you’ll be scratching for waves.

Sunday, July 26, is the first real standout. The morning session is still small at 0.4ft from the southeast, but the energy is climbing to 195 (moderate). Then the afternoon shifts – swell jumps to 0.8ft from the south, period 10 seconds, and the energy hits 272 (moderate). The wind is glassy, and the conditions are good. This is a window where you want to be in the water. The water temp is about average for this time of year, nothing unusual.

Monday, July 27, morning is glassy with 0.9ft from the south, period 9 seconds, energy 263 (moderate). It’s surfable but ordinary. The afternoon gets a bit messy with cross-on wind.

Now, if you’re an expert, Tuesday, July 28, morning has a solid 2ft from the south, period 12 seconds, energy 1400 (strong). But the wind is cross-on, which will be messy. That’s too big for beginners, and the conditions are marginal. The afternoon sees 3ft from the south, energy 2485 (very strong), but with a moderate cross-onshore and choppy – this is more of a kite-surfing setup than a paddle session.

Wednesday, July 29, morning has 2ft from the SSE with offshore wind, period 11 seconds, energy 1774 (very strong). That’s a powerful wave, but it’s a risk of thunderstorms and the conditions are unknown. It’s a tricky one.

The next real highlight is Thursday, July 30, morning. We get 1ft from the SSW, period 11 seconds, energy 456 (moderate), with cross-off wind from the NE and clean conditions. That’s a solid, clean wave for intermediate surfers. The afternoon fades a bit.

Friday, July 31, morning is another good one – 0.9ft from the ESE, period 11 seconds, energy 303 (moderate), with cross-off wind and clean conditions. It’s small but fun.

Then we go into the second week, and it’s a stormy mess. Saturday, August 1, morning has 2ft from the ESE, period 11 seconds, energy 937 (strong), but cross-shore wind and risk of storms. Sunday, August 2, morning sees 4ft from the SE, period 10 seconds, energy 2685 (very strong) – that’s massive, but it’s a beach-and-point setup with cross-shore wind and chop. That’s for experts only, and honestly, it looks more interesting for kite surfing than a paddle. The rest of the week is marginal at best, with onshore winds and dropping energy.

Overall, the best windows are Sunday, July 26 afternoon, and Thursday, July 30 morning. The swell direction is mostly south or southeast, which matches the optimum, so that helps. But crowds are possible at Asakawa, so keep that in mind. It’s a long wait, but those two sessions are worth the patience.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed afternoon. Warm (max 31°C on Tue morning, min 27°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 27mm), heaviest during Sun afternoon. Warm (max 31°C on Fri morning, min 26°C on Sat night). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
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
1
1
0
1
1
0
1
1
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
ESE
11
0.3
SW
8
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
0.4
SE
15
0.8
S
10
0.9
S
10
Wave Graph
Metric surfscale
Energy kJ
12
11
23
22
22
11
11
25
25
50
49
49
42
91
90
87
78
133
146
Wind (km/h)
5
W
5
SSE
10
SSW
5
W
5
E
10
SSW
5
W
5
SE
10
SSW
5
WNW
5
SE
10
SSW
5
WNW
5
ESE
5
SSW
5
NW
5
ESE
5
ESE
5
WNW
Wind State
cross-off
glassy
cross-on
cross-off
cross
cross-on
cross-off
glassy
cross-on
cross-off
glassy
cross-on
cross-off
glassy
cross-on
cross-off
glassy
glassy
cross-off
High Tide
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
5:23PM1.50m
Low Tide
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
10:08AM0.41m
10:33PM1.11m
clear
part cloud
thunderstorm
clear
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:07
5:07
5:07
5:09
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:09
7:09
7:08
7:08
7:07
7:07
 mm
2
1
3
1
1
4
1
1
7
1
1
6
1
3
6
1
Temp °C
28
31
31
28
30
31
28
31
31
28
31
30
28
31
31
28
30
28
27
Feels °C
33
36
36
33
35
37
33
36
36
33
36
35
33
36
36
33
35
34
32
  • 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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