Chokusen surfForecast / Kyu Shu / Japan

information circle48hr Weather and Surf, issued 8 am Wednesday 20 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Chokusen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Chokusen sea temperature is
23.1° C
(Which is normal for this time of year)

How big are the waves at Chokusen today?

The current surf forecast for Chokusen at 5PM is: 1.2m 10s primary swell from a East-southeast direction and 0.7m 6s secondary swell from a Southeast direction, 0.9m 7s secondary swell from a South direction (forecast issued at 08:00am May 20). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (20 May)5ft (1.6m)10s
Afternoon (20 May)4.5ft (1.4m)7s
Evening (20 May)3.5ft (1.0m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 13mm), heaviest on Thu morning. Warm (max 25°C on Wed morning, min 19°C on Thu night). Winds increasing (calm on Wed morning, fresh winds from the SSW by Thu morning).

Wednesday
20
Thursday
21
Friday
22
Sat
23
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
12 AM
3 AM
Rating
(10 max)
2
3
2
0
0
1
2
2
2
0
0
0
2
1
2
2
1
2
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.3
SE
7
1.6
SE
10
1.6
SE
10
1.4
SE
7
1.2
ESE
10
1
ESE
10
1.1
ESE
10
1.1
ESE
10
1.3
S
7
1.3
S
7
1.6
S
6
1.8
SSW
6
1.9
SSW
7
1.6
SSW
7
0.8
ESE
10
1.4
SW
6
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
9
0.8
ESE
9
Wave Graph
Metric surfscale
Energy kJ
169
507
471
169
258
183
218
214
163
163
202
273
338
237
104
167
103
103
105
105
103
103
100
100
Wind (km/h)
5
SE
5
SSE
10
SSE
20
S
20
S
15
SSW
15
SW
15
SW
15
SW
30
SSW
35
SSW
30
SSW
15
SW
20
WSW
20
W
15
W
15
WSW
10
W
10
ENE
10
ESE
20
E
15
E
15
NE
10
NNE
glassy
glassy
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
on
cross-on
on
on
cross-on
cross-on
High Tide
7:42AM1.89m
9:47PM1.76m
8:33AM1.77m
10:46PM1.67m
9:34AM1.63m
11:48PM1.60m
Low Tide
2:46PM-0.04m
3:06AM1.07m
3:42PM0.12m
4:11AM1.08m
4:42PM0.29m
light rain
rain showers
rain showers
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
mod rain
light rain
rain showers
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:13
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:06
7:07
7:07
7:07
3
1
1
7
3
1
Temp °C
23
24
25
25
25
23
23
22
22
25
23
22
24
22
21
19
19
22
23
23
22
22
21
21
26
27
27
25
26
25
25
23
23
24
21
20
26
22
20
18
18
21
23
23
21
21
20
21
Swell 1
Height (m)
Direction
Period (s)
1.3
SE
7
1.6
SE
8
1.6
SE
10
1.4
SE
7
1.2
ESE
10
1
ESE
10
1.1
ESE
10
1.1
ESE
10
1.1
SSE
7
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
1.5
S
7
1.3
S
7
1.1
S
7
1.1
SSW
6
0.9
SSW
6
0.8
SSW
6
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
9
0.8
ESE
9
Energy kJ
159
297
471
168
258
183
218
214
118
163
132
129
202
152
104
90
60
44
105
105
103
103
100
100
Swell 2
Height (m)
Direction
Period (s)
0.9
ESE
10
0.5
S
7
0.9
ESE
10
0.7
SE
6
0.9
S
7
0.9
S
7
0.9
S
7
0.9
ESE
10
0.9
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.6
S
6
0.6
S
6
0.5
S
6
0.5
S
6
0.4
NNE
6
0.6
NNE
6
Energy kJ
169
25
169
40
76
73
73
163
132
103
103
103
103
103
25
24
17
17
15
22
Swell 3
Height (m)
Direction
Period (s)
0.6
E
9
0.9
SE
6
0.7
SE
6
0.6
SE
6
0.2
WSW
7
0.2
WSW
7
0.1
SW
7
0.2
NNE
6
0.4
SSW
6
0.3
SSW
5
Energy kJ
61
56
39
32
4
4
2
4
10
5
Wind waves
Height (m)
Direction
Period (s)
1.6
SE
10
1.2
SE
6
0.9
S
7
0.9
S
7
1
S
7
1.3
S
7
1.3
S
7
1.3
S
7
1.6
S
6
1.8
SSW
6
1.9
SSW
7
1.6
SSW
7
0.5
WSW
3
1.4
SW
6
1.1
SW
6
0.8
WSW
7
0.7
WSW
7
0.8
WSW
7
Energy kJ
507
109
69
77
89
145
154
149
202
273
338
237
5
167
100
51
41
59
Nearest Offshore or Glassy
Rating
(10 max)
2
3
3
2
2
2
2
2
2
3
1
2
3
2
2
2
1
2
1
1
1
1
1
1
Distance (km)
0
0
0
297
309
12
0
0
0
297
342
614
0
0
0
0
0
0
5
297
32
57
33
1
Best forecast wave conditions in Kyu Shu
Rating
(10 max)
2
3
3
2
2
2
2
3
3
3
2
2
2
1
1
1
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
3
2
2
2
2
2
2
3
1
3
3
3
3
4
3
2
2
1
1
1
1
2
Header Global
Rating
(10 max)
4
5
5
5
5
4
4
5
5
5
5
5
5
5
4
4
4
4
5
7
7
7
7
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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