Hashikui Bay surfForecast / Shikoku / Japan

information circle48hr Weather and Surf, issued 2 am Monday 18 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Hashikui Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hashikui Bay sea temperature is
20.9° C
(Which is normal for this time of year)

How big are the waves at Hashikui Bay today?

The current surf forecast for Hashikui Bay at 6AM is: 0.5m 10s primary swell from a Southeast direction and 0.1m 12s secondary swell from a Southeast direction (forecast issued at 02:00am May 18). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (18 May)1.5ft (0.4m)10s
Afternoon (18 May)1.5ft (0.4m)8s
Evening (18 May)1.5ft (0.4m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 12mm), heaviest on Tue night. Warm (max 25°C on Mon morning, min 18°C on Mon night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
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)
0
0
1
0
0
0
0
0
0
0
0
1
0
0
1
1
1
1
1
1
1
1
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
10
0.3
SE
10
0.5
SE
10
0.4
ESE
10
0.4
SE
10
0.4
SE
8
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
0.6
SE
10
0.6
SE
10
1.1
S
6
Wave Graph
Metric surfscale
Energy kJ
26
16
47
38
24
22
26
27
28
28
28
71
71
72
72
92
92
92
90
90
89
84
82
95
Wind (km/h)
5
W
5
W
5
WNW
5
SSE
15
SSE
15
S
10
S
10
WSW
5
WSW
5
WSW
5
W
15
S
15
SSE
20
S
15
S
10
SSW
5
SW
5
SW
0
ENE
0
NNW
0
SSW
5
S
5
S
0
W
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
glassy
glassy
glassy
glassy
glassy
glassy
glassy
High Tide
5:46AM1.77m
7:27PM1.69m
6:19AM1.74m
8:10PM1.63m
6:55AM1.69m
8:56PM1.57m
Low Tide
00:14AM0.84m
12:38PM-0.03m
00:49AM0.90m
1:16PM0.01m
1:26AM0.95m
1:57PM0.10m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
light rain
light rain
light rain
light rain
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:58
6:58
3
3
3
1
1
Temp °C
20
19
19
23
25
24
22
20
19
19
18
22
24
23
22
19
20
20
20
21
21
22
22
21
19
19
19
23
24
22
22
21
20
20
18
21
22
22
22
20
21
22
23
25
25
26
25
24
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
8
0.4
SE
7
0.5
SE
10
0.4
ESE
10
0.4
SE
8
0.4
SE
8
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
7
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
0.6
SE
10
0.6
SE
10
1.1
S
6
Energy kJ
16
14
47
38
17
17
26
27
28
28
19
71
71
72
72
92
92
92
90
90
89
84
82
95
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
10
0.3
SE
10
0.1
SE
12
0.1
SE
12
0.4
SE
10
0.3
SE
10
0.3
SE
7
0.4
SE
8
0.4
SE
8
0.3
SE
7
0.4
SE
10
0.3
SE
7
0.1
S
9
0.5
SSE
6
0.5
SSE
6
0.4
S
7
0.3
S
8
0.6
SE
10
Energy kJ
26
16
6
6
24
16
9
15
14
8
28
9
2
24
23
17
12
80
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
SE
7
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.4
SE
4
0.2
SSE
3
0.2
S
8
Energy kJ
6
6
2
6
6
6
3
1
6
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
8
0.4
SSE
3
0.4
SSE
3
0.4
SE
4
0.3
SSE
3
0.2
SSE
4
0.4
SSE
3
0.4
SSE
3
0.4
SSE
3
0.5
S
7
0.7
SSE
6
0.8
SSE
6
0.9
SSE
6
1
S
6
Energy kJ
22
4
5
3
2
1
2
3
3
22
33
40
54
73
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
3
16
0
16
404
29
29
16
16
16
16
0
29
29
0
0
0
0
0
0
0
0
0
0
Best forecast wave conditions in Shikoku
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
8
6
4
4
5
7
5
4
5
4
4
4
4
4
4
4
4
4
4
4
5
4
4
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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