Asakawa surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 am Wednesday 13 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
19.9° C
(Which is slightly cooler than normal)

How big are the waves at Asakawa today?

The current surf forecast for Asakawa at 6AM is: 1.3m 9s primary swell from a East-southeast direction and 0.2m 8s secondary swell from a South direction (forecast issued at 02:00am May 13). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (13 May)4ft (1.2m)9s
Afternoon (13 May)3.5ft (1.1m)9s
Evening (13 May)3.5ft (1.0m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 8mm), mostly falling on Wed morning. Warm (max 23°C on Thu morning, min 16°C on Thu night). Wind will be generally light.

Wednesday
13
Thursday
14
Friday
15
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)
2
0
1
1
0
0
1
1
1
1
1
1
0
0
1
1
1
1
1
0
0
0
0
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.4
ESE
9
1.3
ESE
9
1.3
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
1
ESE
9
1
ESE
9
1
ESE
9
1
ESE
9
1
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
9
0.6
E
10
0.6
ESE
9
0.6
ESE
10
0.8
ESE
9
0.6
ESE
9
1
E
6
0.6
ESE
10
0.9
ESE
6
Wave Graph
Metric surfscale
Energy kJ
327
261
255
221
203
203
207
176
161
161
168
175
169
169
137
119
67
62
67
98
69
69
72
53
Wind (km/h)
5
SW
5
WSW
5
WNW
5
E
5
SSE
5
SSW
5
SSW
10
WNW
5
NNW
5
NNW
10
NNW
10
NNE
10
ENE
10
ENE
0
SW
5
NNW
10
N
10
N
10
NNW
10
ENE
10
ESE
10
SSE
10
SSE
0
SSW
glassy
cross
glassy
glassy
on
cross-on
glassy
cross-off
off
off
off
cross-off
cross
cross
glassy
off
off
cross-off
off
cross
cross-on
on
on
glassy
High Tide
2:55AM1.63m
3:27PM1.54m
3:29AM1.70m
4:22PM1.67m
4:02AM1.77m
5:13PM1.78m
Low Tide
9:18AM0.60m
9:20PM0.66m
9:58AM0.38m
10:08PM0.69m
10:37AM0.17m
thunderstorm
rain showers
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
clear
clear
part cloud
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:03
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:53
6:54
1
2
1
2
2
1
1
1
Temp °C
18
18
18
20
21
21
20
18
17
17
17
22
23
23
22
19
17
16
16
21
22
22
20
18
19
19
19
21
21
22
22
18
17
17
17
21
22
22
23
19
16
14
14
20
22
22
20
20
Swell 1
Height (m)
Direction
Period (s)
1.4
ESE
9
1.3
ESE
9
1.3
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
1
ESE
9
1
ESE
9
1
ESE
9
1
ESE
9
1
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
9
0.6
E
10
0.6
ESE
9
0.6
ESE
10
0.8
ESE
9
0.6
ESE
9
0.7
ESE
6
0.8
ESE
6
0.9
ESE
6
Energy kJ
327
261
255
221
203
203
207
176
161
161
168
175
169
169
137
119
67
62
67
98
69
31
43
53
Swell 2
Height (m)
Direction
Period (s)
0.1
S
11
0.2
S
8
0.1
S
10
0.1
S
10
0.1
S
8
0.1
S
8
0.2
S
8
0.2
S
7
0.2
S
7
0.2
S
8
0.2
S
7
0.2
S
7
0.2
S
7
0.2
ENE
3
0.4
SE
10
0.6
ESE
10
0.4
ESE
10
0.5
E
9
0.3
SE
12
0.4
SE
5
0.5
ESE
9
0.6
ESE
10
0.5
ESE
9
Energy kJ
2
5
2
2
1
1
4
4
4
4
4
4
4
1
26
67
38
42
21
7
48
72
50
Swell 3
Height (m)
Direction
Period (s)
0.1
S
10
0.1
S
10
0.1
S
10
0.1
S
9
0.1
S
9
0.1
S
9
0.2
S
7
0.1
S
7
0.1
S
7
0.3
SE
11
0.3
SE
12
0.2
S
7
0.3
SE
11
0.3
SE
11
0.2
SSE
11
0.3
SE
11
Energy kJ
2
2
2
2
2
1
4
1
1
20
21
4
20
20
12
20
Wind waves
Height (m)
Direction
Period (s)
0.5
N
3
0.2
NNE
3
0.4
NE
3
0.4
NE
3
0.2
NNE
2
0.4
NE
3
0.3
NE
3
0.3
NE
3
1
E
6
Energy kJ
4
1
3
3
1
2
1
1
69
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
1
2
2
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
0
2
0
0
11
11
0
0
0
0
0
0
43
41
0
0
0
0
0
22
41
19
19
0
Best forecast wave conditions in Shikoku
Rating
(10 max)
2
2
2
2
2
2
2
2
2
1
1
2
2
2
2
2
2
2
2
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
3
3
3
3
3
3
1
2
2
2
2
2
2
2
2
1
2
1
1
1
Header Global
Rating
(10 max)
8
9
9
9
9
9
9
8
7
9
9
9
9
8
5
5
5
5
5
5
5
5
5
5
  • 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

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