Asakawa surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 am Sunday 31 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Asakawa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Asakawa sea temperature is
22.7° C
(Which is slightly warmer than usual)

How big are the waves at Asakawa today (31 May):

  • Morning surf: Morning surf (31 May, local time) - 3ft (0.9m), 13s period with S swell.
  • Afternoon surf: Afternoon surf (31 May, local time) - 4ft (1.2m), 12s period with S swell.
  • Evening surf: Evening surf (31 May, local time) - 4ft (1.2m), 12s period with S swell.

The current surf forecast for Asakawa at 8AM is: 0.8m 14s primary swell from a South direction and 0.6m 11s secondary swell from a East-southeast direction (forecast issued at 02:00am May 31). The wind direction is predicted to be glassy and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (31 May)3ft (0.9m)13s
Afternoon (31 May)4ft (1.2m)12s
Evening (31 May)4ft (1.2m)12s

Table - waves today at Asakawa. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 232mm), heaviest during Tue night. Warm (max 27°C on Sun afternoon, min 19°C on Sun night). Winds increasing (calm on Sun night, strong winds from the ENE by Tue night).

Sunday
31
Monday
1
Tuesday
2
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
1
1
1
1
1
2
0
0
0
2
3
2
1
1
2
3
4
3
2
2
1
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.5
ESE
11
0.6
ESE
11
0.6
S
14
0.9
S
13
1
S
13
1.2
S
12
1.3
S
12
1.2
S
12
1.2
S
11
1.5
SSE
11
1.1
S
14
1.6
S
13
1.6
S
14
1.7
S
13
1.9
S
13
1.9
S
13
1.8
S
13
1.9
SSW
14
2
S
13
2
S
14
1.8
SSW
14
1.8
SSW
14
1.8
SSW
14
1.8
SSW
14
Wave Graph
Metric surfscale
Energy kJ
71
84
140
284
319
423
480
404
363
494
474
892
929
1049
1275
1285
1074
1247
1465
1483
1280
1318
1230
1283
Wind (km/h)
5
W
5
WNW
5
NW
5
SW
10
SW
5
W
15
S
15
SSW
10
SW
10
SW
5
SW
5
SSE
10
SE
10
SSE
10
SSE
10
S
5
S
5
E
10
ESE
10
ESE
15
SE
20
ESE
25
ESE
30
ESE
cross-off
cross-off
glassy
cross
cross
glassy
cross-on
cross-on
cross-on
cross
glassy
on
on
on
on
cross-on
glassy
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
4:56AM1.68m
6:39PM1.66m
5:28AM1.69m
7:15PM1.65m
6:00AM1.68m
7:51PM1.62m
Low Tide
11:26PM0.95m
11:48AM0.18m
00:00AM0.97m
12:22PM0.16m
00:33AM0.98m
12:57PM0.18m
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
light rain
light rain
light rain
light rain
light rain
mod rain
heavy rain
heavy rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:52
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:07
7:07
1
5
4
3
3
7
11
18
25
Temp °C
22
22
22
24
26
27
24
20
19
19
19
23
24
23
22
20
19
19
19
20
21
21
21
21
23
23
23
26
25
28
24
21
20
20
21
25
24
23
24
21
21
21
20
21
22
21
20
19
Swell 1
Height (m)
Direction
Period (s)
0.5
ESE
11
0.6
ESE
11
0.6
S
14
0.9
S
13
1
S
13
1.2
S
12
1.3
S
12
1.2
S
12
1.2
S
11
1.5
SSE
11
1.1
SSE
6
1.6
S
13
1.6
S
14
1.7
S
13
1.9
S
13
1.9
S
13
1.8
S
13
1.9
SSW
14
2
S
13
2
S
14
1.8
SSW
14
1.8
SSW
14
1.8
SSW
14
1.8
SSW
14
Energy kJ
71
84
140
284
319
423
480
404
363
494
97
892
929
1049
1275
1285
1074
1247
1465
1483
1280
1318
1230
1283
Swell 2
Height (m)
Direction
Period (s)
0.3
S
5
0.4
S
15
0.6
ESE
11
0.6
ESE
11
0.6
ESE
11
0.5
ESE
11
0.4
ESE
10
0.5
S
15
0.7
S
15
0.8
S
14
1.1
S
14
0.8
SSW
16
0.8
SE
6
0.7
SE
6
0.4
ESE
11
0.4
ESE
11
0.9
SSW
16
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.9
S
9
Energy kJ
5
73
84
84
85
74
32
118
224
264
474
341
43
30
45
45
392
43
41
40
126
Swell 3
Height (m)
Direction
Period (s)
0.2
S
16
0.2
S
5
0.1
SE
9
0.3
SE
12
0.2
SSE
9
0.3
SE
12
0.3
SE
12
0.4
ESE
11
0.4
ESE
10
0.6
SSW
18
1
S
11
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.5
E
10
0.4
ESE
11
Energy kJ
20
2
3
22
7
23
22
50
33
240
235
18
19
19
52
45
Wind waves
Height (m)
Direction
Period (s)
0.3
SSW
5
0.7
S
4
0.9
SSE
5
0.7
SE
5
0.2
E
9
1.4
SE
5
1.7
SE
6
2.1
SE
6
3
SE
7
Energy kJ
5
16
33
29
7
115
205
356
855
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
2
2
3
2
3
3
3
3
2
4
4
4
4
3
4
4
4
4
4
4
Distance (km)
0
0
0
2
2
0
339
11
2
2
0
19
370
11
11
11
0
0
43
43
43
369
369
369
Best forecast wave conditions in Shikoku
Rating
(10 max)
1
2
2
2
2
3
2
3
3
3
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
2
2
3
3
2
3
3
3
4
2
4
4
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
6
8
7
7
7
7
7
6
6
5
5
5
5
5
5
4
4
4
5
5
5
5
7
6
  • 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

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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest