Choshi Surf Break

Choshi 48 hour detailed Surf Forecast

Lat Long: 35.71° N 140.80° E

Issued: 2 am 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Choshi sea temperature is
19.4° C

3.0°C colder than average for this time of year

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


How big are the waves at Choshi today (18 Jun):

  • Morning surf: Morning surf (18 Jun, local time) - 6ft (1.8m), 6s period with S swell.
  • Afternoon surf: Afternoon surf (18 Jun, local time) - 4.5ft (1.3m), 8s period with SSE swell.
  • Evening surf: Evening surf (18 Jun, local time) - 3ft (0.9m), 7s period with SSE swell.

The current surf forecast for Choshi at 6AM is: 0.8m 10s primary swell from a East-northeast direction and 0.1m 10s secondary swell from a Southeast direction, 1.0m 5s secondary swell from a Southeast direction (forecast issued at 02:00am June 18). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Jun)6ft (1.8m)6s
Afternoon (18 Jun)4.5ft (1.3m)8s
Evening (18 Jun)3ft (0.9m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 55mm), heaviest during Thu morning. Warm (max 21°C on Thu morning, min 19°C on Thu afternoon). Mainly strong winds.

Thursday
18
Friday
19
Saturday
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
0
0
2
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
ENE
10
0.8
ENE
10
0.8
ENE
10
1.8
S
6
2.2
S
8
1.3
SSE
8
1
SSE
7
0.9
SSE
7
0.7
SSE
7
0.7
E
9
0.6
E
9
0.6
E
9
0.5
E
9
0.5
E
9
0.6
ENE
9
0.9
ENE
9
1
ENE
9
1.1
ENE
9
1.1
ENE
9
1.2
ENE
9
1.2
E
10
1.2
ENE
10
1.2
ENE
10
1.7
E
10
Wave Graph
Metric surfscale
Energy kJ
120
123
123
269
535
187
111
90
57
76
56
56
39
39
62
124
151
211
225
265
267
263
269
608
Wind (km/h)
20
SSE
20
ESE
20
E
10
ENE
15
NE
40
NNW
35
NNW
25
NNW
15
N
15
NNE
10
NNE
15
NE
15
ENE
15
ENE
20
ENE
15
ENE
15
NE
15
NE
15
ENE
15
E
15
E
15
SE
20
SE
25
SE
Wind State
cross-on
on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
on
on
on
High Tide
4:54AM1.38m
7:41PM1.18m
5:45AM1.32m
8:15PM1.15m
6:40AM1.23m
8:47PM1.13m
Low Tide
11:36PM0.93m
12:26PM-0.06m
00:23AM0.88m
1:10PM0.07m
1:15AM0.82m
1:52PM0.22m
light rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:20
4:20
4:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:54
6:54
 mm
1
18
22
16
24
1
1
Temp °C
20
20
20
20
21
20
19
19
19
19
20
21
21
21
20
20
19
19
20
20
21
21
21
20
Feels °C
20
20
20
22
22
16
16
17
19
19
21
21
21
20
19
20
19
18
19
19
21
20
20
18
Swell 1
Height (m)
Direction
Period (s)
0.8
ENE
10
0.8
ENE
10
0.8
ENE
10
1.2
SSE
6
1.4
SSE
7
1.3
SSE
8
1
SSE
7
1
NNE
6
0.8
NE
6
0.7
E
9
0.6
SSE
7
0.6
E
9
0.5
E
9
0.5
E
9
0.6
ENE
9
0.9
ENE
9
1
ENE
9
1.1
ENE
9
1.1
ENE
9
0.3
SE
10
1.2
E
10
1.2
ENE
10
1.2
ENE
10
1.7
ENE
10
Energy kJ
120
123
123
103
202
187
111
70
45
76
41
56
39
39
62
124
151
211
225
15
267
263
269
587
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
16
0.1
SE
10
0.1
SE
10
0.7
ENE
10
0.7
ENE
9
0.6
E
9
0.6
E
10
0.9
SSE
7
0.7
SSE
7
0.6
SSE
7
0.6
E
9
0.5
SSE
7
0.5
SSE
7
0.4
SSE
6
0.6
ENE
6
0.4
SE
6
0.4
SE
6
0.3
SE
10
0.3
SE
10
0.1
SE
13
0.3
SE
10
0.1
SE
12
0.3
SE
12
0.1
E
18
Energy kJ
11
4
4
94
90
63
65
90
57
43
56
26
25
15
22
8
8
15
15
7
15
6
23
6
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
10
0.1
SE
16
0.1
SE
16
0.1
SE
10
0.1
SE
16
0.1
SE
16
0.4
SE
9
0.5
E
10
0.5
E
9
0.6
NE
6
0.2
SSE
11
0.2
SSE
10
0.2
SSE
10
0.3
SE
10
0.4
SSE
6
0.3
SE
10
0.3
SE
10
0.1
SE
13
0.1
SE
13
0.4
SE
10
0.1
SE
12
0.1
E
18
0.2
SSE
12
Energy kJ
4
10
10
4
10
10
22
46
42
27
11
10
10
16
15
15
15
7
7
24
6
6
14
Wind waves
Height (m)
Direction
Period (s)
0.6
SSE
4
0.8
SE
4
1
SE
5
1.8
S
6
2.2
S
8
0.8
N
4
1.2
N
5
1.7
N
6
0.6
NE
6
0.6
NE
6
0.6
NE
6
0.5
NE
6
1.2
ENE
9
0.7
SE
4
0.6
SE
4
1
SE
5
1.7
E
10
Energy kJ
12
24
48
269
535
17
73
212
20
24
26
16
265
17
16
41
608
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
3
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
Distance (km)
609
56
56
62
206
83
52
37
37
0
0
117
112
170
170
170
307
125
125
644
1085
1085
965
266
Best forecast wave conditions in Chiba
Rating
(10 max)
1
2
3
2
2
2
2
2
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
3
1
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
2
2
Header Global
Rating
(10 max)
4
4
5
5
5
9
9
9
5
5
5
5
6
6
6
5
9
5
4
5
4
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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